2012 IEBC Fundamentals 12/11/2017. Copyright 2012 International Code Council 1

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1 Overview 2012 IEBC Fundamentals The purpose of the IEBC is to encourage the use and re-use of existing buildings while requiring reasonable upgrades and improvements Based on the 2012 International Existing Building Code 2012 IEBC Fundamentals Workbook Page 1 2 Objectives Upon completion of this seminar, participants will be better able to: Recognize the limitations and extent of the codes related to existing buildings. Recognize the classification of work associated with existing buildings. Identify fire protection systems that need to be upgraded. Objectives Upon completion of this seminar, participants will be able to: Recognize vertical openings that need partial or complete enclosure. Identify unsafe interior finishes that need to be replaced. Determine the adequate means of egress IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page 1 4 Copyright 2012 International Code Council 1

2 Objectives Upon completion of this seminar, participants will be able to: Identify needed accessibility improvements. Identify improvements to structural systems. Describe the compliance alternative tabular method of evaluating existing buildings. General Purpose and Intent Why was the IEBC created? Why not use the IBC? Is the IEBC to be considered an equivalent to the IBC? 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Scope Module 1 Chapter 1: Scope and Administration The IEBC covers all aspects of existing buildings including maintenance, repairs, alterations, additions, change in use, historic buildings and relocation IEBC Fundamentals IEBC Fundamentals Workbook Page 7 8 Copyright 2012 International Code Council 2

3 101.3 Intent Applicability Alternative approaches (regulations) Application of any enforcement-oriented interpretive action or judgment. Code official needs to be able to review, evaluate and rule on performance designs Can a building take advantage of the more relaxed provisions of the IEBC before construction of the building has begun? At the time a building was constructed, there was no law or ordinance requiring compliance with an established set of codes or standards, permits or inspections within the jurisdiction: Would the building be considered legally occupied? 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Correction of Violations of Other Codes Repairs or alterations compliant with other adopted maintenance codes, International Property Maintenance Code (IPMC ) International Fire Code (IFC ), Are not required to comply with the IEBC unless those codes so provide Referenced Codes and Standards Language was revised and added to clarify how to deal with conflicts with referenced standards and understanding how the scoping of similar subjects by this code and standard are addressed IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page 9 12 Copyright 2012 International Code Council 3

4 102.4 Referenced Codes and Standards This clarification is particularly important when this code and the standard have similar scopes. This clarification of what provisions take precedence is intended to reflect consistency with other I-codes Referenced Codes and Standards Note: this essentially added a new section and Section was based upon existing language and Section which addresses similar scopes is all new language IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Conflicts Where conflicts occur between provisions of this code and the referenced standards, the provisions of this code shall apply Conflicting Provisions The provisions of this code, as applicable, take precedence over the provisions in a referenced code or standard where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page 9 16 Copyright 2012 International Code Council 4

5 Duties and Power of the code officials Duties and Power of the code officials General Preliminary meeting Building Evaluation Right of Entry Used materials and equipment Modifications Flood hazard areas Alternative materials, designs and methods of construction and equipment 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page 9 18 Permits Permits Required Requires a permit for work done under auspices of this code Annual permits allowed for work to already approved installations Electrical Gas Mechanical or Plumbing Work exempt from permit Permits are not required for work as listed in Section 105.2; however, although a permit is not required, any work that is done must not violate the provisions of the IBC or other laws or ordinances of the jurisdiction IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 5

6 Construction documents Submittal documents The design of building construction must be performed by a registered design professional in accordance with the laws of the state where the work takes place Design professional in responsible charge A registered design professional as the individual who will oversee the coordination of all design related documents for construction. Administration Activity 1. Referring to Section 101 in the code, which activity does not fit within the scope of the IEBC? Adding an addition to a church that was built in the year Converting a two-car garage to a bedroom. Constructing a building on a vacant lot. Repairing a broken window in an auto shop IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Administration Activity Administration Activity 2. Read the following scenarios. Put a check in the Permit not required or Permit required box, whichever is applicable. 2. Read the following scenarios. Put a check in the Permit not required or Permit required box, whichever is applicable. Scenario 1 A technician is installing a temporary system required to service electrical equipment. Permit not required Permit required Scenario 2 A contractor is installing a window awning supported by an exterior wall of a Group R-3 occupancy. Permit not required Permit required 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 6

7 Administration Activity 2. Read the following scenarios. Put a check in the Permit not required or Permit required box, whichever is applicable. Scenario 3 A contractor is installing a driveway that is 45 inches (1143 mm) above grade, is not over a basement or story below and is not part of an accessible route. Permit not required Permit required Administration Activity 3. Work a.footing that requires or foundation a permit inspection shall be subject b.concrete to inspection slab or under-floor by the code inspection official. What c. Lowest inspections floor elevation shall be performed? d.frame inspection e.lath and gypsum board inspection f. Fire-resistant penetration inspection g.other inspections if required h.special inspections if required i. Final inspection 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Section 202 Dangerous Chapter 2: Definitions Rewording of the definition is intended to correct awkward grammar and sentence structure and to place the emphasis of necessary directly on support. (See below) 2012 IEBC Fundamentals IEBC Fundamentals 28 Copyright 2012 International Code Council 7

8 Section 202 Substantial Structural Damage In this code, lateral system upgrades are triggered where lateral system damage from any cause is classified as Substantial Structural Damage (SSD). The change from 20 percent to 33 percent of the lateral-load capacity redefined the SSD to what is considered a more reasonable threshold to require an upgrade of a damaged building. (See below) Module 2 Chapter 3: Compliance Methods 2012 IEBC Fundamentals IEBC Fundamentals General Section 101.5, which included the basic procedural provisions of this code, as well as specific seismic evaluation and design criteria, did not belong in Chapter 1. The movement of Sections through to Chapter 3 in the 2012 edition remedies the situation of having technical criteria in the administration chapter General The creation of Chapter 3 resulted in the renumbering of the chapters in this code from this point onward. See the following tables with the renumbered chapters IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 8

9 IEBC Chapter Title Changes 2012 Chapters 2009 Chapters Chapter 1: Scope and Administration Chapter 1: Scope and Administration Chapter 2: Definitions Chapter 2: Definitions Chapter 3: Compliance Methods Chapter 3: Prescriptive Compliance Method Chapter 4: Prescriptive Compliance Chapter 4: Classification of Work Method Chapter 5: Classification of Work Chapter 5: Repairs Chapter 6: Repairs Chapter 6: Alterations Level 1 Chapter 7: Alterations Level 1 Chapter 7: Alterations Level 2 Chapter 8: Alterations Level 2 Chapter 8: Alterations Level 3 Chapter 9: Alterations Level 3 Chapter 9: Change of Occupancy IEBC Chapter Title Changes 2012 Chapters 2009 Chapters Chapter 10: Change of Occupancy Chapter 10: Additions Chapter 11: Additions Chapter 11: Historic Buildings Chapter 12: Historic Buildings Chapter 12: Relocated or Moved Buildings Chapter 13: Relocated or Moved Buildings Chapter 13: Performance Compliance Methods Chapter 14: Performance Compliance Chapter 14: Construction Safeguards Methods Chapter 15: Construction Safeguards Chapter 15: Referenced Standards Chapter 16: Referenced Standards Appendix A: Guidelines for the Seismic Retrofit of Existing Buildings Appendix A: Guidelines for the Seismic Retrofit of Existing Buildings 2012 IEBC Fundamentals IEBC Fundamentals 34 IEBC Chapter Title Changes 2012 Chapters 2009 Chapters Appendix B: Supplementary Accessibility Requirements for Existing Buildings and Facilities Appendix C: Guidelines for the Wind Retrofit of Existing Buildings (NEW) Appendix B: Supplementary Accessibility Requirements for Existing Buildings and Facilities Compliance methods The options available to a designer or owner: prescriptive compliance method (Section ); work area compliance method (Section ); performance compliance method (Section ) IEBC Fundamentals IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 9

10 Evaluation and design procedures Seismic evaluation and design of an existing building must be based on the procedures specified in one of four reference materials. IBC Guidelines for the Seismic Retrofit of Existing Buildings (GSREB) (2012 IEBC, Appendix A) American Society of Mechanical Engineers ASCE 31 ASCE IEBC Page Compliance with IBC level seismic forces 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page IEBC Page Compliance with reduced IBC level seismic forces Compliance Methods 1. When seismic forces are permitted to meet reduced IBC levels, they must be based on what percent of the assumed forces prescribed in the IBC? a. 35 b. 55 c. 75 d IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 10

11 Compliance Methods 2. The seismic analysis must be based on one of the following procedures in which section of the IEBC? a b c d Module 3 Chapter 4: Prescriptive Compliance Method 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Existing Seismic-Force- Resisting Systems This Section provides guidance to engineers when selecting system-related design coefficients for existing seismic force systems. Previously, this guidance was located within each individual section related to alterations, additions, repairs and changes of occupancy but has been relocated to a more general section to ensure consistent application Existing Seismic-Force- Resisting Systems The intent is that existing systems should be considered ordinary by default. For seismic systems that may provide performance equivalent to that of a detailed, intermediate, or special system, this code requires a demonstration of equivalence 2012 IEBC Fundamentals IEBC Fundamentals 44 Copyright 2012 International Code Council 11

12 Existing Seismic- Force-Resisting Systems This only applies to systems for which there is a choice of ordinary, detailed, "intermediate" or special for the permitted seismic force systems. For example, light-frame shear walls are not categorized as ordinary, detailed, intermediate or special. Those systems are acceptable, and the system coefficients specified for those systems in ASCE 7 are appropriate Dangerous Conditions This revision relocates a provision related to the ability of the building official to address dangerous conditions from Section (Section 304, Repairs) to Section (Section 401, General). The relocation is related to the need to emphasize the broad applicability of this provision throughout Chapter 4 and it is not simply limited to repairs IEBC Fundamentals IEBC Fundamentals Existing structural elements carrying gravity load Where additions and related alterations increase the force in any existing structural element by more than 5 percent, the structural elements must be altered and replaced to carry the increased load as required for new construction Existing structural elements carrying lateral load There are three options for seismically designing an addition to an existing structure: Design the addition as being structurally independent from the existing building: The addition must be designed to meet the requirements for new construction. Design the addition as not being structurally independent from the existing building: The addition and existing structure must be designed to meet the requirements for new construction IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 12

13 Existing structural elements carrying lateral load There are three options for seismically designing an addition to an existing structure: Design the addition as not being structurally independent from the existing building: The addition must be designed to meet the requirements for new construction and the addition must not increase the demand-demand-capacity ratio of any existing lateral load-carrying element by more than 10 percent Smoke Alarms in Existing Portions of a Building This provision was added since Chapter 34 of the International Building Code (IBC ) did not currently provide a path to the International Fire Code (IFC )for the smoke alarm requirements in existing buildings. This new section connects this code directly to Section of the IFC IEBC Fundamentals Workbook Page IEBC Fundamentals Smoke Alarms in Existing Portions of a Building The work area method (chapters 5 through 13) already addresses this link but as Chapter 4 is simply a duplication of Sections 3401 through 3411 of the IBC, this section is now located within Chapter 4, as well Smoke Alarms This new section is consistent with the addition of new Section 402.5, and with the need in IBC Chapter 34 for the link to the IFC for smoke alarm requirements in existing buildings. This new section fixes a technical flaw between the IFC and this code by tying the requirements for smoke alarms in individual sleeping units and individual dwelling units in Group R and I-1 directly to the Section of the IFC IEBC Fundamentals IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 13

14 403.6 Smoke Alarms In the past, this code limited the level of building fire protection by isolating such requirements to work areas only. The structure of the IFC is that the retroactive requirements apply to all buildings, whether or not those buildings are undergoing alterations Substantial Structural Damage to Vertical Elements of the Lateral-Force- Resisting System Two new exceptions that exempt certain combinations of buildings, seismic risk, and damage from triggered seismic upgrades, were added to Section Basic repair that is, restoring the pre-damage condition is still required even for the exceptions outlined IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Substantial Structural Damage to Vertical Elements of the Lateral-Force- Resisting System Exception 1,(New) The first exception is for buildings in areas of low or moderate seismicity [Seismic Design Category (SDC) A, B or C], where the damage was not caused by an earthquake and therefore would not be required to be evaluated or rehabilitated for load combinations that include earthquake effects as in Section Substantial Structural Damage to Vertical Elements of the Lateral-Force- Resisting System Exception 1, (New) This exemption of Seismic Design Category C is new with the 2012 edition. Where earthquakes are rare, it serves no significant public purposes to trigger seismic upgrades following damage caused by fire, collision, wind, etc IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 14

15 404.2 Substantial Structural Damage to Vertical Elements of the Lateral-Force- Resisting System Exception 2, (New) The second exception is for one- and twofamily dwellings, where the public risk is especially low even though the damage may be associated with earthquake effects. Similar revisions were made to Chapter 6, Repairs Evaluation This section was revised to remove the list of SDC s requiring evaluation that is now addressed by Section 404.2, Exception 1, which exempts SDC s A through C. Therefore, this section regulates SDC s D through F IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Evaluation Additionally, in correlation with the new requirement in Section , the provisions providing guidance to engineers on selecting system-related design coefficients for existing seismic force systems are no longer necessary in this location. In Section there is a more general application to the entire chapter Substantial structural damage to gravity load-carrying components Substantial structural damage to gravity loadcarrying elements must be repaired. Snow loads must also be included where the substantial damage is associated with the effects of snow load IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 15

16 Lateral Force-Resisting Elements Exceptions 1 and 2 (New) This section added two new exceptions which are identical to Section The reasoning for the exceptions is the same. The primary differences between the two sections is that: Section deals with the vertical elements of the lateral-force-resisting system. Section deals with damage caused by wind and earthquake to the gravity load-carrying components in a building Less than substantial structural damage Damage that is not deemed to be substantial structural damage, repairs are allowed that restore the building to its pre-damaged state using materials and strengths that existed prior to the damage. New structural members and connections used for this repair must comply with the detailing provisions for new buildings of similar materials, purpose and location IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Fire Escapes New buildings Existing fire escapes New fire escapes Limitations Conformance Change in Occupancy A change in occupancy to an existing building requires the building to meet the requirements of the IBC for the new occupancy IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 16

17 407.4 Structural When a change in occupancy results in the structure being reclassified to a higher occupancy category, the seismic requirements for new construction apply to the existing structure Historic buildings Except for historic structures located in flood hazard areas, a proposed change of occupancy that does not constitute a distinct life safety hazard may be approved by the code official IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Flood hazard areas An historic building located in a flood hazard area is required to comply with the flood provisions of the IBC unless one of the following is applicable: An historic building is listed in the National Register of Historic Places; Determined by the U.S. Department of the Interior as contributing to the historical significance of an historic district; or Designated as historic under a program that is approved by the U.S. Department of the Interior. Accessibility for Existing Buildings 410 The intent is that when a building is altered, it should be made accessible to the maximum extent possible within reason IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 17

18 410.1 Scope The exception that exempted Type B units from being provided in existing buildings being altered or undergoing a change of occupancy was deleted Scope This coordinates with a number of revisions that now require that Type B units be addressed when an alteration affecting over 50 percent of the building is being undertaken with or without a change of occupancy IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Change of Occupancy When a change of occupancy includes alterations to more than 50 percent of the building, Type B dwelling or sleeping units, as required by Section 1107 of the IBC, will be required in Group I and R facilities Complete Change of Occupancy Exception (New) In accordance with the new exception, when Type B units are required in existing buildings, the additional accessible features listed in Section , Items 1 through 6 are not required for an accessible route to Type B units IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 18

19 410.5 Additions Provisions for new construction apply to additions. Note that if an addition affects accessibility to or contains an area of primary function Section applies Alterations Alterations are required to comply with the provisions of Chapter 11 of the IBC unless technically infeasible. Note that technically infeasible is a defined term IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Alterations affecting an area of primary function The accessible route to that function and any toilet rooms or drinking fountains serving it must be evaluated for accessibility. A primary goal is that all buildings will become fully accessible over time Alterations Affecting an Area Containing a Primary Function Exception 5 (New) Where an alteration affects the accessibility to, or contains an area of primary function, the route to the primary function area shall be accessible. Per the new exception, this provision does not apply to altered areas limited to Type B dwelling and sleeping units IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 19

20 Elevators Platform lifts All elevators on an accessible route must be fully accessible in accordance with ICC A If a passenger elevator is altered, the altered element must be accessible in accordance with the existing elevator requirements in ICC A Given the choice between no accessibility or accessibility by a platform lift, accessibility is preferable IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Stairs and escalators Intent is that if a route is provided between accessible levels for a nondisabled person to use, it is reasonable to also expect an accessible route. Accessibility for Existing Building Ramps Performance areas Dwelling or sleeping units 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 20

21 Type A Dwelling or Sleeping Units This section expands the application of the requirements of Section 1107 of the IBC for Type A units when more than 20 Group R-2 dwelling or sleeping units are added to also include units altered. These requirements apply only to the quantity of the spaces being altered or added Type B Dwelling or Sleeping Units This section has been revised to also require Type B units to be addressed when Group I-1, I-2, R-1, R-2, R-3 or R-4 sleeping or dwelling units are being altered IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Type B Dwelling or Sleeping Units This revision only applies to more extensive alterations (more than 50 percent of the building area) and the requirements only apply to the quantity of spaces being altered. Accessibility for Existing Building Jury boxes and witness stands Toilet rooms Dressing, fitting and locker rooms Fuel dispensers Thresholds 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 21

22 Historic buildings If you touch it, fix it. If the alteration contains a primary function area, address accessible route requirements. The issues for technical infeasibility and accessible means of egress requirements are also the same. The difference is if the alterations would threaten, compromise or destroy the historical aspect of the building Historic Buildings Exception (New) New exception indicates that historic buildings are not required to provide Type B units when undergoing a change of occupancy or alterations IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Accessibility for Existing Building Site arrival points Multilevel buildings and facilities Entrances Toilet and bathing facilities Module 4 Chapter 5 Classification of Work 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals 88 Copyright 2012 International Code Council 22

23 Classification of Work Traditional Repair Alteration Addition Change of occupancy Moved structures Classification of Work NARRP Repair Renovation Alteration Reconstruction Addition Change of occupancy Workbook page IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Classification of Work Classification of Work Chapter 5 Repair Alteration-Level 1 Alteration-Level 2 Alteration-Level 3 Addition Change of occupancy Relocated or moved buildings Historic Buildings Chapter 5 Chapter 5 Traditional NARRP IEBC Alteration Renovation Alteration Reconstruction Levels of Alteration Alteration-Level 1 Alteration-Level 2 Alteration-Level IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 23

24 Classification of Work Activity R E Q U I R E D 3 U 2 P G R 1 A D E S Alt. Lev.1 Alt. Lev.2 Alt. Lev. 3 IEBC Proportional Approach IEBC Chapter 7 Requirements IEBC Chapter 8 Requirements IEBC Chapter 9 Requirements 1. Use your IEBC to match the statements to the applicable term. b. Level 1 Alterations a. Applies where the work area exceeds 50 percent of the aggregate area of the building. b. Includes the removal and replacement or the c. Level 2 Alterations covering of existing materials, elements, equipment or fixtures that serve the same purpose. a. Level 3 Alterations c. Includes the reconfiguration of space, the addition or elimination of any door or window, the reconfiguration or extension of any d. Change of Occupancy system or the installation of any additional equipment. d. Must comply with the provisions of Chapter 10. e. Additions e. Must comply with the provisions of Chapter IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Repairs Chapter 6: Repairs Note that hazardous building materials such as asbestos and lead based paint shall not be used where the code would not permit such use IEBC Fundamentals IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 24

25 General Repairs are made as a result of maintenance requirements. Maintained in accordance with the IFC and IPMC. Repairs need to comply with the IEBC New and replacement materials Repairs can be made with like materials unless such materials are deemed to be hazardous 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Glazing in hazardous locations Replacement glazing, other than glass block, louvered windows and jalousies in a hazardous location shall comply with the requirements of the IBC or the IRC General Structural The requirements that pertain to structural materials and elements in need of repair; Section addresses repairs for less than substantial structural damage; Section addresses repairs for substantial structural damage to vertical elements of the lateralforce-resisting system; and Section addresses repairs for substantial structural damage to gravity load-carrying components IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 25

26 Repairs for less than substantial structural damage Repairs are allowed that restore the building to its predamaged state. New structural members and connections used for this repair shall comply with the detailing provisions of the IBC Substantial Structural Damage to Vertical Elements of the Lateral-Force-Resisting System Two new exceptions that exempt certain combinations of buildings, seismic risk, and damage from triggered seismic upgrades were added to Section Basic repair, that is, restoring the pre-damage condition, is still required even for the exceptions outlined IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Substantial Structural Damage to Vertical Elements of the Lateral-Force-Resisting System Exception 1 (New) The first exception is for buildings in areas of low or moderate seismicity (SDC s A, B or C), where the damage was not caused by an earthquake. These buildings would not be required to be evaluated or rehabilitated for load combinations that include earthquake effects as in Section Substantial Structural Damage to Vertical Elements of the Lateral-Force-Resisting System Exception 1 (New) Where earthquakes are rare, it serves no significant public purposes to trigger seismic upgrades following damage caused by fire, collision, wind, etc IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 26

27 Substantial Structural Damage to Vertical Elements of the Lateral-Force-Resisting System Exception 2 (New) The second exception is for one- and twofamily dwellings where the public risk is especially low even though the damage may be associated with earthquake effects. These are the same exceptions found in the prescriptive compliance method in Section Substantial structural damage to gravity load-carrying components Required to be rehabilitated to comply with the provisions for dead and live loads in the IBC. Required to comply with the detailing provisions of the IBC for new buildings IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Lateral- Force- Resisting Elements Exceptions 1 and 2 (New) This section added two new exceptions which are identical to Section The reasoning for the exceptions is the same. The primary differences between the sections is that: Section deals with the vertical elements of the lateral-force-resisting system. Section deals with damage caused by wind and earthquake to the gravity load-carrying components in a building. Chapter 6 Example A fire has caused damage to a one storybuilding. Many walls, ceilings and doors must be replaced, including the walls and the doors of a corridor that were not fire-resistance rated, but would be required to be fire resistance rated under the IBC. The walls are not load bearing. Can the walls of the corridor be reconstructed, and the other doors be replaced with the same construction and door as before the fire? 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 27

28 Chapter 6 Q&A Can No. the The walls walls of of the the corridor be would be reconstructed, considered an alteration, and the other Level 2 doors because of replaced the reconfiguration with the same of the construction corridor. The and door construction as before the of the fire? corridor would be considered new construction; therefore, Section would apply and must comply with all of the requirements of the IBC. A permit would also be required. Activity 1. Replacement glazing in locations determined to be hazardous is allowed to be any approved glazing material. a. True b. False 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Activity Activity 2. a. Substantial They must meet structural the requirements damage of the is IBC. a trigger b. They for structural are permitted repairs to be designed to comply for 80 with percent the of the live load and dead loads required by the IBC for a similar provisions use or occupancy. for new construction. What is c. Structural required elements for structural being repaired repairs are permitted that are to less be restored than substantial to their pre-damage structural condition. damage? d. An evaluation in accordance with Section is required to determine what are the minimum requirements. 3. New structural frame members used in the repair of damaged buildings, including anchorage and connections, must comply with which International Code? IBC 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 28

29 Introductions Module 6 Chapter 7: Alterations Level 1 The This owner is an Alteration Level of a five-story multi-family 1. The fixtures building and all plans materials to replace used all to install faucets, them lavatories must comply and water with closets, the IPC. and Further, all carpeting all new in carpeting the entire must building comply in all with units. the radiant What requirements flux requirements should of be the IBC. No followed? additional requirements are triggered IEBC Fundamentals IEBC Fundamentals Workbook Page General 701 Level 1 alterations being performed must not lessen the safety of the existing building. Building Element and Materials 702 All new work must comply with the prescribed materials and methods requirements for new construction. All interior finishes must comply with the flame spread requirements of the IBC. Carpeting must comply with the radiant flux requirements of the IBC IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 29

30 705.1 Accessibility General Must comply with the accessibility provisions in Section 705 and Chapter 11 of the IBC unless technically infeasible. Altered items to review for accessibility include entrances, elevators, ramps and toilet rooms Accessibility General Exception 3: Type B units are required only when an existing building undergoes a Level 3 alteration. Exception 4: Reference to Chapter 11 of the IBC and ICC A117.1 have been removed. Rather than refer to the IBC, specific provisions are being added to this code. The wording is revised to reflect that change IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Accessible dwelling or sleeping units Where Group I-1, 1-2, 1-3, R-1, R-2 or R-4 dwelling units or sleeping units are being altered or added, the requirements for accessible units in Section 1107 of the IBC and accessible alarms in Chapter 9 of the IBC apply only to the quantity of spaces being altered or added Type A dwelling or sleeping units 24 units within a Group R-2 apartment building are being altered 2 percent of the 24 units being altered would be required to be designed to conform to Type A unit requirements and to incorporate visible alarms in accordance with Chapter 9 of the IBC IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 30

31 Alterations affecting an area containing a primary function The route to the primary function area must also be accessible, including toilet facilities and drinking fountains: The cost of providing the accessible route is not required to exceed 20 percent of the costs of alterations affecting the primary function area Alterations Affecting an Area Containing a Primary Function Exception 5 (New) Where an alteration affects the accessibility to, or contains an area of primary function, the route to the primary function area shall be accessible IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Alterations Affecting an Area Containing a Primary Function Exception 5 (New) Per the new exception, this provision does not apply to altered areas limited to Type B dwelling and sleeping units. (See below) Bracing for unreinforced masonry bearing wall parapets The failure of parapets in unreinforced masonry (URM) bearing wall buildings has been a recurring problem in areas that experience significant earthquakes. The code requires these elements to be braced where the seismic hazard is deemed to be relatively high and reroofing work is greater than 25% of the roof area IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 31

32 Roof Diaphragms Resisting Wind Loads in High-Wind Regions In level 1 alterations, evaluation criteria for wind resistance of roof diaphragms have been revised to clarify which parts of the roof connections need to be evaluated in accordance with the wind-load requirements of the IBC Roof Diaphragms Resisting Wind Loads in High-Wind Regions This section was also revised to allow compliance with only 75% of the wind loads found in the IBC IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Energy Conversation Construction related to the alterations is required to conform to the requirements IECC, or IRC, as applicable. The entire building is not required to conform to the IECC or IRC energy provisions. Activity 1. For a ramp slope that is steeper than 1 unit vertical in 10 units horizontal (1:10) but not steeper than 1 unit in 8 units horizontal (1:8), the maximum rise is inches. a. 3 b. 6 c. 9 d IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 32

33 Activity 2. For a ramp slope that is steeper than 1 unit vertical in 12 units horizontal (1:12) but not steeper than 1 unit vertical in 10 units horizontal (1:10), the maximum rise is inches. a. 3 b. 6 c. 9 d. 12 Activity 3. Where replacement of roofing equipment results in additional dead loads, structural component supporting such reroofing or equipment must comply with the vertical load requirements of the IBC except when structural elements whose stress is not increased by more than percent. a. 5 b. 10 c. 15 d IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Activity 4. The maximum height of thresholds at doorways shall be ¾ inch (19 mm). True False Module 7 Chapter 8: Alterations Level IEBC Fundamentals Workbook Page IEBC Fundamentals 132 Copyright 2012 International Code Council 33

34 801.3 Compliance All new construction related to level 2 alterations shall comply with the related International Codes, except for the following: Windows that may be added without meeting light and ventilation requirements of IBC. Electrical equipment that shall comply with Section 808. Length of dead-end corridors in renovated spaces that shall comply with Section Minimum ceiling height in new habitable and occupiable spaces that shall be 7 feet (2134 mm) Vertical openings All existing vertical openings connecting two or more floors must be enclosed with assemblies of 1-hour fire-resistance-rated construction and approved protected openings. The scoping provisions of Section indicate that the enclosure requirements triggered under Level 2 alterations apply only to work areas IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Smoke Barriers Fire Protection The following requirements apply to smoke barriers in Group I-2 occupancies: Where the work area exceeds 30 patients, the story shall be divided into a minimum of two compartments by smoke barrier walls. Each compartment shall not exceed 22,500 square feet (2090 m 2 ) Travel distance from any point to door in smoke barrier cannot exceed 200 feet ( mm). Must have a minimum of a 30-minute fire-resistance rated assembly constructed in accordance with the IBC. Sprinkler requirements apply to the following: Work areas that include exits and corridors shared by more than one tenant or serving an occupant load more than 30 in high-rise buildings and all occupancy groups except B, F-2, R-3 and U. Windowless stories. Other types of suppression systems listed in the IBC IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 34

35 Fire Protection Fire alarm and detection systems shall comply with the following: Fire alarm systems must be installed in work areas of Use Groups E, I-2 and I-3, and residential care and assisted living facilities I-1, R-2 and R-4 in accordance with the IFC. Fire alarms systems must be installed throughout R-1 occupancies in accordance with the IFC. Fire Protection Fire alarm and detection systems shall comply with the following: Automatic heat detection is not required if the building is equipped with automatic suppression in accordance with Section (work area). Fire detection systems must be installed in accordance with NFPA 72 (IBC and IFC). Smoke alarms must be in accordance with the IFC and shall be installed in work areas of Groups R and I IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Fire Protection Groups A, B, E, F-1, H, I, M, R-1, R-2, R-4, S-1 and S-2 The 2009 IEBC allowed buildings in areas that do not have a municipal water supply capable of supporting an automatic sprinkler system to be exempt from such systems when they are typically required. Groups A, B, E, F-1, H, I, M, R-1, R-2, R-4, S-1 and S-2 The code changes provide an alternative to the installation of a new fire pump, with a requirement to at least provide an early warning to occupants using an smoke detection system. The system, once initiated, is required to activate the occupant notification system in accordance with Sections 907.4, and of the IBC IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 35

36 Section Groups A, B, E, F-1, H, I, M, R-1, R-2, R-4, S-1 and S-2 The smoke detection system would cover all occupiable areas other than dwelling or sleeping units, since such units would be equipped with smoke alarms. Means of Egress Scope Minimum number Fire escapes required Mezzanines Main entrance Group A 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Means of Egress Main entrance Group A Two egress doorways required Door swing Door closing Means of Egress Panic hardware Corridor doors Dead-end corridors Means-of-egress lighting Handrails 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 36

37 ACCESSIBILITY Facilities being altered shall comply with this section and Section 705. New escalators and stairways shall comply with the IBC. Dwelling units and sleeping units being added in Group I-1, I-2, I-3, R-1, R-2 or R-4 occupancies shall comply with IBC Section 1107 and Chapter 9 as they apply to the quantity of spaces being added. Structural General New structural elements Existing structural members 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Existing Structural Elements Resisting Lateral Loads Rather than having Level 2 alterations reference the provisions of Level 3 alterations (which are split into two classes, substantial and limited), the revisions move the relevant wind and seismic requirements into the Level 2 provisions Existing Structural Elements Resisting Lateral Loads There is one substantive change to Section 807.5, but it is actually a correction: The 2009 provision refers to Section 1613 of the IBC for seismic loads. This is inconsistent with the provisions of this code for Level 3 alterations, therefore, the reduced IBC-level seismic forces are used in place of the reference to Section 1613 of the IBC IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 37

38 807.5 Existing Structural Elements Resisting Lateral Loads Additionally, Section also requires that the alteration not create a structural irregularity prohibited by ASCE 7, unless the entire structure complies with the reduced IBC level seismic forces Existing Structural Elements Resisting Lateral Loads The creation of a new structural irregularity might not cause element demandcapacity ratios to increase by more than 10 percent, but those irregularities should still be avoided. Structural irregularities in existing construction need not be eliminated IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Activity 1. All new construction elements, components, systems and spaces must comply with the requirements of the IBC except when the minimum ceiling height of the newly created habitable and occupiable spaces and corridors are feet. a. 5 b. 7 c. 9 d. 11 Activity 2. Where the work area on any floor exceeds 50 percent of that floor area, the enclosure requirements of Section must apply to vertical openings other than stairways throughout the floor IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 38

39 Activity Smoke barriers must be fire-resistance rated for how many minutes? 30 minutes Activity a. Underground gate valve with roadway 4. Fire sprinkler systems shall be boxes supervised. b. Halogenated Name extinguishing five fire systems that do not c. require Carbon dioxide supervision. extinguishing systems d. Dry and wet chemical extinguishing systems e. Automatic sprinkler systems installed in accordance with the NFPA 13R, where a common main is used to supply both domestic and automatic sprinkler systems and a separate shutoff valve for the automatic sprinkler systems is not provided IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Activity Activity 5. Mezzanines in the work area and with an occupant load of more than 50, or the travel distance to an exit exceeds 75 feet ( mm) must have access to how many independent means of egress? a. 1 b. 2 c. 3 d. 4. d Plumbing fixtures for the story must be provided in quantities specified in the IPC based on the increased occupant load where the occupant load of story is increased by more than percent. a. 10 b. 20 c. 30 d IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 39

40 Activity 7. When is a main exit required for an existing Group A occupancy undergoing a level 2 alteration? a. Occupant load of 100 persons b. Occupant load of 300 persons c. Occupant load of 500 persons d. Occupant load of 1000 persons Chapter 9: Alterations Level 3 a IEBC Fundamentals Workbook Page IEBC Fundamentals Boiler and furnace equipment rooms All boiler and furnace-equipment rooms within the following must be equipped with fire-rated construction (1-hour): Day nurseries emergency controls required for equipment. Children s shelter facilities emergency controls required for equipment. Residential child care facilities emergency controls required for equipment Boiler and furnace equipment rooms All boiler and furnace-equipment rooms within the following must be equipped with fire-rated construction (1-hour): Similar Group I-2 occupancies with children under 2½ years of age emergency controls required for equipment. Shelter facilities. Residences for the developmentally disabled 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 40

41 Boiler and furnace equipment rooms Boiler and furnace equipment rooms All boiler and furnace-equipment rooms within the following must be equipped with fire-rated construction (1-hour): Group homes emergency controls required for equipment. Teaching family homes emergency controls required for equipment. Transitional living homes emergency controls required for equipment. All boiler and furnace-equipment rooms within the following must be equipped with fire-rated construction (1-hour): Rooming and boarding houses. Hotels. Multiple dwellings IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Building Elements and Materials Existing shafts and vertical openings Separation required Automatic sprinkler systems Automatic sprinkler systems shall be installed in work areas in accordance with Section for Level 2 alterations. More stringent requirements for High Rise buildings and rubbish and linen chutes for Level IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 41

42 Fire alarm and detection systems Fire alarm and detection systems complying with Sections and for Level 2 alterations must be provided throughout the building. Manual and automatic fire alarm systems are required as applicable to occupancy based upon the requirements in the IBC and IFC General Compliance with both Section 705 and 806 is required Accessibility 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Type B Dwelling or Sleeping Units (New) Where an existing building undergoes a Level 3 alteration that includes altering or adding four or more dwelling or sleeping units, Type B requirements in accordance with Section 1107 and Chapter 9 of the IBC for visible alarms are applicable only to the quantity of the spaces being altered or added Structural alterations All existing lateral load-resisting structural elements whose demand-capacity ratio with the alteration considered is more than 10 percent greater than its demand-capacity ratio with the alteration ignored must undergo an engineering evaluation and analysis by a registered design professional, which must be submitted to the code official IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 42

43 Substantial Structural Alteration The revision included in Section expands the time frame in which alterations are required to be counted together for purposes of determining whether the project is big enough to trigger a seismic upgrade from one year to five years Substantial Structural Alteration This proposal reduces the possibility that this code is applied such that the trigger is intentionally avoided. For example, by phasing alteration work over three years, it is possible that a cumulative 89 percent of the floor and roof area could be altered in a nonconforming building, thus avoiding the intended upgrade trigger. Five years was felt to be a period that is appropriate to the nature of seismic upgrades IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Limited Structural Alteration This Section correlates with the revisions to Section in that Section now simply references Section for the relevant wind and seismic provisions. Also, rather than repeating the criteria for a substantial structural alteration, simplified text is provided and substantial structural alteration is described in Section Limited structural Alteration A building undergoing limited alterations (less than that required in Section ) with a seismic base shear increase greater than 10 percent, needs comply with Section IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 43

44 Wall Anchors for Concrete and Masonry Buildings This change relocates the triggered structural improvement of installation of wall anchors for concrete and masonry buildings from Alterations Level 1 to Alterations Level 3 where it is more appropriate Wall Anchors for Concrete and Masonry Buildings Re-roofing does not make the anchor installation more convenient or costeffective. In some cases, the Level 1 trigger could result in disproportionate additional costs, discouraging the rather simple, but important, act of maintaining the roof. Therefore, this building improvement makes more sense as a Level 3 Alteration IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Bracing for Unreinforced Masonry Parapets (New) This new section requires the installation of a parapet bracing in buildings undergoing a Level 3 alteration and assigned to Seismic Design Category D, E or F that have parapets constructed of unreinforced masonry whether or not reroofing is involved Bracing for Unreinforced Masonry Parapets (New) This change is similar to the current requirements within Alteration Level 1, Section , except that Section is only required if a roofing permit is obtained and work exceeds 25 percent of the roof area IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 44

45 Alterations Level 3 Alterations-Level 3 Consider a two-story building where the rearrangement of several tenant spaces results in the reconfiguration of more than 55 percent of the first floor and 50 percent of the second floor. Existing First Floor M W C M W C Proposed First Floor 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Alterations-Level 3 Activity M W C Existing Second Floor M W C Proposed Second Floor 1. Match the following sections with the statements below: d. Section b. Section a. Section c. Section a. Any building having occupied floors more than 75 feet above the lowest level of fire department vehicle access shall comply with the requirements of this section. b. Automatic sprinkler systems shall be provided in all work areas in accordance with this section. c. Fire separation in Group R-3 occupancies shall be in accordance with this section. d. A building, facility or element that is altered shall comply with this section IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 45

46 Activity 2. Means of egress from the highest area floor to the floor of exit discharge must be provided with artificial lighting within the exit enclosure in accordance with the requirements of which International Code? Activity 3. Where The evaluation there is not analysis more shall than demonstrate 30 percent of that the the total altered floor building and roof or areas structure of the building complies involved with the in loads structural applicable alteration at the within time the a 5 building year period, was constructed. what must the evaluation and analysis demonstrate? IBC 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page General Module 9 Chapter 10: Change of Occupancy There are three basic types of change of occupancy: One in which the occupancy classification changes to a different group. One where the occupancy classification changes within a group. One where the occupancy classification stays the same but the level of activity changes IEBC Fundamentals IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 46

47 General Triggers in this chapter are predicated on a change of occupancy to a higher hazard classification and a change in occupancy classification. A change of use of a historic building must comply with Section Special Use and Occupancy This section addresses ten special use and occupancy categories. Any change to one of these occupancies would be required to comply with the provisions of the IBC IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Compliance with the Building Code There are new additional requirements for ambulatory care facilities in Section 422 of the IBC. This section adds ambulatory care facilities to its list of special use or occupancy categories in which a change in character or use of an existing building requires compliance with the IBC Compliance with the IBC level seismic forces If the change of occupancy results in higher risk categories (Table of the IBC) or results in a higher hazard category (Table ) or where a Group M occupancy is changed to a Group A, E, I-1, R-1, R-2 or R-4 occupancy with at least two-thirds of the floors involved in Level 3 alteration work, the building must comply with the seismic requirements of the IBC, provided one of the exceptions is not met IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 47

48 TABLE TABLE IBC Page 50 MEANS OF EGRESS HAZARD CATEGORIES RELATIVE HAZARD OCCUPANCY CLASSIFICATIONS 1 (Highest Hazard) H 2 I-2, I-3, I-4 3 A, E, I-1, M, R-1, R-2, R- 4 4 B, F-1, R-3, S-1 5 (Lowest Hazard) F-2, S-2, U 2012 IEBC Page 51 HEIGHTS AND AREAS HAZARD CATEGORIES RELATIVE HAZARD OCCUPANCY CLASSIFICATIONS 1 (Highest Hazard) H 2 A-1, A-2, A-3, A-4, I, R-1, R-2, R-4 3 E, F-1, S-1, M 4 (Lowest Hazard) B, F-2, S-2, A-5, R-3, U 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page IEBC Page 51 TABLE EXPOSURE OF EXTERIOR WALLS HAZARD CATEGORIES RELATIVE HAZARD OCCUPANCY CLASSIFICATION 1 (Highest Hazard) H 2 F-1, M, S-1 3 A, B, E, I, R 4 (Lowest Hazard) F-2, S-2, U Means of egress for change to higher hazard category Whenever a change of occupancy classification is made to a higher hazard category, the means of egress shall comply with Chapter 10 of the IBC. Exceptions: 1. Stairway enclosures shall comply with Section Existing stairways that comply with Chapter 9 can be allowed upon approval from the code official IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 48

49 Means of egress for change to higher hazard category Exceptions: 3. A new stairway replacing an existing stairway can be built to the previous slope or pitch that impacts the rise height and tread depth if the existing construction that supports or encloses the stairway is such that it makes it impractical to comply with the rise and tread requirements of the IBC. 4. Existing corridor walls constructed of wood lath and plaster or ½-inch (13 mm) gypsum board shall be permitted, provided such construction is in good condition and provides a barrier that inhibits the spread of smoke, heat and fire. an emergency escape opening Means of egress for change to higher hazard category Exceptions: 5. Existing corridor doorways, transoms and other corridor openings shall comply with the requirements in Sections , and , respectively. 6. Dead-end corridors shall comply with Section An existing operable window with clear opening of 4 square feet (0.37 m2), minimum opening height of 22 inches (559 mm) and a minimum opening width of 20 inches (508 mm) shall be acceptable as an emergency escape opening IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Fire Wall Alterative (New) An alternative method for subdividing a building into separate buildings with fire barriers and horizontal assemblies has been added. This provides more design flexibility in existing buildings Fire Wall Alterative (New) This allowance does come with several required criteria: An NFPA 13 sprinkler system. Equivalent fire-resistance ratings in accordance with fire wall ratings. A limitation on maximum allowable area that does not allow an increase for an automatic sprinkler system IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 49

50 Fire Wall Alterative (New) Exception: Where horizontal assemblies are used to limit the maximum allowable area, the required fire-resistance rating of the horizontal assemblies is permitted to be reduced by 1-hour reduction provided the sprinkler credit that would otherwise be given for the increase in height and number of stories currently allowed by Chapter 5 of the IBC has not been applied Opening protectives Exceptions: 1. Where IBC permits openings greater than 50 percent. 2. Group R buildings less than four stories in height and at least 3 feet (914 mm) from the property line do not require protected openings. 3. Sprinklers may substitute for protectives. 4. Not required if occupancy is equal or lower 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Enclosure of vertical shafts Exceptions: 1. For all occupancies other than Group I, an enclosure is not required for stairs serving one adjacent floor and not connected with corridors or stairs from other floors. 2. Stairways that were previously unenclosed are not required to be enclosed if each story has a 1-hour separation (or wired glass in steel frames), and all exit corridors are sprinklered. 3. Existing penetrations of stair enclosures are acceptable if protected as required by the IBC Enclosure of vertical shafts When a change of occupancy is to a higher hazard per Table , all shafts (other than stairs)must be enclosed in accordance with the IBC. Exceptions: 1. Shafts that have a 1-hour fire rating are acceptable if a higher rating is required. 2. Fully sprinklered buildings, other than Group I, are not required to have openings enclosed, provided they connect less than six stories IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 50

51 Accessibility Exception (New): In accordance with the new exception, a change of occupancy or group now requires that Type B units be addressed when a change of occupancy involves a Level 3 alteration. This correlates with Chapter 4 of this code and Chapter 34 of the IBC Complete Change of Occupancy Exception: In accordance with the new exception, when Type B units are required in existing buildings, the accessible features listed in , Items 1 through 6 are not required for an accessible route to Type B units IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Activity 1. What must be issued where a change of occupancy occurs that results in a different occupancy classification as determined by the IBC? A certificate of occupancy Activity 2. Buildings subject to a change of occupancy where such change in the nature of occupancy results in higher uniform or concentrated loads based on Table of the IBC must comply with which provisions of the IBC? Gravity load provisions 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 51

52 Activity 3. Where the occupancy of existing building or part of an existing building is changed such that the new occupancy is subject to different kitchen exhaust requirements, the new occupancy must comply with the intent of which International Code? IMC Activity True or False? An existing building must comply with all of the applicable requirements of Chapter 10 of the IEBC when an occupancy classification of a building changes, including a change of occupancy classification within a group (i.e. A-3 to A-2). True 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Area limitations Module 10 Chapter 11: Additions An addition shall not increase the height and area of an existing building beyond that allowed by the IBC. Exception: If there is an alteration within a building that includes closing of floor openings, these are not be considered additions. If a nonoccupiable appendage, is being added by connecting to the existing exterior wall of an existing building, this would not be considered an addition as it relates to the height and area requirements IEBC Fundamentals IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 52

53 Additional Gravity Loads Shall comply with the requirements of the IBC unless the stress is not increased by more than 5 percent or in Group R buildings with no more than five dwelling units or sleeping units Vertical addition Members meet two specific lateral load requirements; wind load requirements of the IBC and IBC level seismic provisions as specified in Section Any element not meeting these provisions requires replacement, reinforcement or other measures in order to comply IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Horizontal addition Structural 1103 A horizontal addition that is isolated from the existing structure is self-supporting. Where this is not the case, portions of the existing lateral-force-resisting system affected by the addition, are required to meet two specific lateral load requirements; the wind load requirements of the IBC and the IBC level seismic provisions as specified in Section Voluntary addition of structural elements to improve the lateral-force-resisting system Snow drift loads Flood hazard areas 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 53

54 Smoke Alarms in Existing Portions of a Building This section was revised to increase the scope to include all Group l-1 and R occupancies. This aligns with Section (Alterations Level 2), as well as Section of the IFC, which addresses smoke alarms in new construction Minimum requirements Additions must comply with accessibility requirements for new construction IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Energy Conservation (New) Section 1106 is new to the 2012 edition of this code. The new section addresses energy conservation as it relates to additions. More specifically this requirement is essentially a reminder that all new additions need to comply with the International Energy Conservation Code (IECC ) or the International Residential Code (IRC ), as applicable. Activity 1. Match the following sections to the applicable statements. b. Section a. Section a. Voluntary additions of structural elements to improve the lateral-forceresisting system of a building must comply with this section. b. b. An addition that affects the accessibility to or contains an area of primary function must comply with the requirement of this section for accessible routes IEBC Fundamentals IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 54

55 Activity 2. The existing building must be provided with smoke alarms as required by the IBC or the IRC whenever an addition is made to a building or structure of which two group occupancies? Group R Group I-1 Activity 3. Existing structural elements supporting any additional gravity loads, as a result of additions must comply with the IBC except when structural elements stress is not increased by more than what percent? 5 percent 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Report Module 11 Chapter 12: Historic Buildings When putting together a report for a historic building in SDC D, E, or F the engineer needs to include a structural evaluation requiring, at minimum, a description of the vertical and horizontal elements of the lateral-force-resisting system and any strengths or weaknesses of that system IEBC Fundamentals IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 55

56 Report The language in the 2009 edition required that the engineer describe a complete load path, whether one was present or not. Further, the term earthquake resistant features was vague and has been deleted General Wording in the 2009 edition allowed repairs with original or like materials and original methods of construction. This was been expanded to specify that the use of hazardous materials, such as asbestos and lead-based paint, that would not be code compliant in new construction, would not be permitted in repairing buildings of similar occupancy, purpose and location IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Unsafe Conditions This section was revised to use the term unsafe in place of the term dangerous as the terms have specific meanings in Chapter 2. Dangerous is specific to structural issues. Unsafe has a more general meaning. Repairs Relocated buildings Foundations of relocated historic buildings shall comply with the IBC but the rest of the building shall be permitted to comply with Chapter Replacement Replacement glazing is required to comply with Chapter 24 of the IBC Otherwise original materials are permitted for replacement 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 56

57 Fire Safety General Historic buildings that constitute a distinct hazard are required to be sprinklered. Sprinklers can not be used as an alternative to the required number of exits Means of egress Allows narrower openings and when approved by the code official nased upon actual use. Doors can swing the opposite direction if other approved means of egress provides sufficient capacity. Fire Safety Transoms Fully sprinklered R-1, R-2, R-3 with existing transoms can remain in corridors and rated walls if they are closed and sprinklers are located on both sides of the transom Interior finishes Historic finishes are allowed but they must be demonstrated to be historic IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Fire Safety 1203 Fire Safety Stairway enclosure In historic buildings 3 stories or less stairway enclosures are only required to be enclosed by smoke tight doors and solid building elements. Fire resistance rated construction is not required One-hour fire resistant assemblies Wood or metal lath and plaster in good condition can be considered equivalent to 1 hour fire resistance rated construction Glazing in fire resistance rated systems Historic glazing materials are permitted in interior walls normally required to have a 1 hour fire resistance rated construction when approved smoke seals and the area affected is provided with and automatic sprinklers IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 57

58 Fire Safety Stairway railings Grand stairways shall be accepted without complying with the handrail and guardrail requirements. Handrails and guards are required to be structurally stable Exit signs Alternative signs are permitted with approval of the code official where exit signs would damage the historic character of the building. Alterations Alterations The alteration requirements are focused primarily on accessibility. Section 705, 806 and 906 apply as applicable unless technically infeasible. Type B accessible unit requirements are not applicable for historic structures IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Alterations: Accessibility Requirements Exception (New) Historic buildings are not required to provide Type B units when undergoing alterations Change of Occupancy Historic buildings undergoing a change of occupancy comply with chapter 10 and Chapter 7, 8 and 9 as applicable unless the provisions of this section allow exceptions to these requirements. Topics covered including fire protection, means of egress, stair construction, natural light and accessibility. Accessibility requirements of Section apply unless technically infeasible IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 58

59 Change of Occupancy: Accessibility Requirements Historic buildings are not required to provide Type B units when undergoing a change of occupancy Structural The structural aspect of existing buildings should comply with the level of work as classified in Chapter 5. There is an exception that allows operational controls to limit live loads. Dangerous conditions are required to be remedied IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Dangerous Conditions Unnecessary language has been deleted from this section. In addition, the title is editorially changed from unsafe structural elements to dangerous conditions to be consistent with the definitions of unsafe and dangerous in Chapter 2. Module 12 Chapter 13: Relocated or Moved Buildings 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals 236 Copyright 2012 International Code Council 59

60 Relocated or Moved Buildings Relocated or moved buildings are not defined in the IEBC. Relocated buildings musty comply with the requirements of the IBC or IRC, whichever is applicable for location on the lot and foundation. Section Wind Loads The wind upgrade trigger for relocated or moved buildings has been revised to be consistent with those already in Sections 402.4, 403.4, 807.5, and Over the last several code cycles, all the lateral triggers have been increased from 5 percent to 10 percent IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Section Seismic Loads Chapter 12 The seismic upgrade trigger for relocated or moved buildings has been revised to be consistent with those already in Sections 402.4, 403.4, 807.5, and Over the last several code cycles, all the lateral triggers have been increased from 5 percent to 10 percent. 1. What is the intent of Chapter 12 "Historic Buildings"? To provide means for the Preservation of historic buildings and still provide an acceptable level of safety IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 60

61 Chapter In addition to Chapter 12, which other chapter of the IEBC must historic buildings undergoing repairs comply with? Chapter 6 Activity 1. Buildings must comply with the IBC or IRC wind provisions as applicable except when the stress of structural elements are not increased by more than what percent? 10 percent 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Activity 2. If relocated or moved into a flood hazard area, structures must comply with what section of the IBC? Section 1612 Module 13 Chapter 14 Performance Compliance Methods Compliance Alternatives 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals 244 Copyright 2012 International Code Council 61

62 General General There are 19 categories that are evaluated including the following: Building height Building area Compartmentation Tenant and dwelling unit separation Corridor walls Vertical openings HVAC systems There are 19 categories that are evaluated including the following: Automatic fire detection systems Fire alarm systems Smoke control Means of egress capacity Dead ends Maximum exit access travel distance Elevator control 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page General Scope There are 19 categories that are evaluated including the following: Means of egress emergency lighting Mixed occupancies Automatic sprinklers Standpipes Incidental use area protection To maintain or increase the current degree of public safety health and welfare in existing buildings while permitting repairs, alterations, additions and changes in occupancy classifications without requiring full compliance with Chapters 4 through 13 or the International Codes for new construction IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 62

63 General Applicability Investigation and evaluation Evaluation Evaluation process The evaluation process is required to be followed in its entirety. All 19 areas are required to be evaluated, not just a portion of them IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Evaluation of building safety The mandatory safety score listed in Table shall be subtracted from the building score entered in Table for each category The building is in compliance if the final score is equal to or greater than zero. Module 14 Chapter 15 Construction Safeguards 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals 252 Copyright 2012 International Code Council 63

64 Construction Safeguards The building construction process involves a number of known and unanticipated hazards. These regulations are intended to supersede the federal regulation known as Occupational Safety and Health Act, as well as state laws with parallel intent. Multi-use Structure Purpose: The purpose of this case study is to provide you with an opportunity to discuss how the 2012 IEBC can be applied in a real-world situation. It will also give you an opportunity to have general discussions concerning the major points of the2012 IEBC. In the case study, you will walk through the phases of site design and development as related to each chapters 6 through 9 of the 2012 IEBC IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Multi-use Structure Multi-use Structure Directions: After you complete an overview of each chapter of the 2012 IEBC, you will be provided a situation to analyze concerning the case study as it pertains to the topics covered in the particular chapters. Select two or three individuals and form a team. After you read the information, answer the discussion questions provided using the information within the case study and the 2012 IEBC. You should be prepared to share your answers with the entire group IEBC Fundamentals Workbook Page Case Study Background Information: An existing 3 story multi-tenant Group B building in Dublin, Ohio is being converted into a multi-use structure. The building is a 7,500 square feet per floor (687 m 2 ), constructed with masonry exterior walls and concrete floors supported on open web steel joists. Currently the building does not have sufficient water supply for a sprinkler system without the installation of a new fire pump IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 64

65 Multi-use Structure Scope of Work Alterations need to be made to 100 percent of the ground floor; 60 percent of the second floor and 25 percent of the third floor. Additionally, there is a change of occupancy on the entire first floor from Group B to a restaurant (Group A-2). Multi-use Structure Classification of Work What is the classification of work for this building? 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Multi-use Structure Code Compliance Considerations: Alterations With the Alternations being completed in the building, what code compliance the owners will need to consider? Building elements and materials Fire Protection Means of Egress Multi-use Structure Code Compliance Considerations: Alterations With the Alternations being completed in the building, what code compliance the owners will need to consider? Accessibility Structural Energy Conservation 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page Copyright 2012 International Code Council 65

66 Multi-use Structure Code Compliance Considerations: Change of Occupancy With the change in occupancy in the building, what are the code compliance the owners will need to consider? Structural Electrical Mechanical Plumbing Multi-use Structure Code Compliance Considerations: Change of Occupancy With the change in occupancy in the building, what are the code compliance the owners will need to consider? Fire Protection Systems Means of Egress Building Height and Area Enclosure of Vertical Shafts 2012 IEBC Fundamentals Workbook Page IEBC Fundamentals Workbook Page The IEBC 2012 IEBC Case Study Encourages the use and reuse of existing buildings while requiring reasonable upgrades and improvements and extent of the work, not the expense. Based on the 2012 International Existing Building Code and the 2012 International Building Code 2012 IEBC Case Strudy 264 Copyright 2012 International Code Council 66

67 The IEBC Applicable upgrades and improvements are lifesafety related includes upgrading fire protection systems partially or completely enclosing of the vertical openings replacing unsafe interior finishing ensuring adequate means of egress improving accessibility and the structural system The IEBC It is important to note that the necessity of the upgrades and/or improvements is determined by the type and extent of the work, not the expense IEBC Case Strudy IEBC Case Strudy 266 Chapter 11 of the IEBC States that an existing building or structure is not required to comply with the provisions of Chapter 11 or any of the codes that follow, but an addition to a building or structure shall comply with the provisions of Chapter 11 and the: International Building Code (IBC ) International Mechanical Code (IMC ) International Plumbing Code (IPC ) Chapter 12 of the IEBC Applies to preservation of historic buildings, which addresses the following: Repair Alteration Relocation Change of occupancy 2012 IEBC Case Strudy IEBC Case Strudy 268 Copyright 2012 International Code Council 67

68 Case Study ~ Historical Library What we know: The addition consists of: An 880 square foot basement expansion An elevator Accessible restrooms A staff mezzanine 2012 IEBC Case Strudy IEBC Case Strudy 270 What we know: Alteration consists of adding a second means of egress for all floors and some other miscellaneous alterations. It has been determined that the library is a contributing building within the proposed boundary increase for the West Chester downtown historical district and a letter has also been submitted by the Pennsylvania Historical Commission. Discussion Activity Questions 1. Will the historical provisions be applicable to this building? 2012 IEBC 2012 IBC Yes. Section 202 definition of historic buildings includes buildings that contribute to a historic district. Chapter 12, Historic Buildings, could be used. No. The historic building definition in Section 202 does not include contributing buildings to a historic district. Section 3407 could not be used IEBC Case Strudy IEBC Case Strudy 272 Copyright 2012 International Code Council 68

69 Discussion Activity Questions 2. Will a special report be required to be submitted? 2012 IEBC 2012 IBC Depends on whether the code official finds it necessary to ask for a report. (Section ) No. There are no provisions in Chapter 34 to allow the code official to ask for an additional report. Discussion Activity Questions 2012 IEBC 2012 IBC 3. Currently, the building has two exit doors: The existing doors are not required to be widened, A 30 as inch they comply by 89 with inch the capacity door based on occupant load (Even assuming the entire (762 buildings mm occupant by 2261 load mm) passes through one of three doors the required width would A 31 be 84 inch X 0.2 by = for inch elements door other than (787 stairways mm and by X 0.3 = 25.2 mm) for stairways, much below what is already provided Are the at 30 existing and 31 ). However, doors the required code to be widened, official can require the doors to be widened if in even their opinion though the doors a are new not complying wide exit door is enough being for a provided person to pass as through. part of the alteration (Section ) project? One or both of the existing doors could possibly be required to be widened if they are in the area of alterations or if they will be serving any part of the new additions. (Section ) 2012 IEBC Case Strudy IEBC Case Strudy 274 Discussion Activity Questions 4. Assuming 2012 there IEBC will not be a 2012 fire IBC barrier constructed Because the A-3 between fire area the Only new the basement library is being expanded, addition will require a basement addition and the existing is below the level of exit sprinkler system. basement, discharge and will is not a sprinkler (Sections system be and required? separated by a fire barrier, ) a sprinkler system will be required in the entire building. (IEBC Section and IBC Section ) If yes, in what parts of the building? Discussion Activity Questions 5. If the installation 2012 IEBC of the sprinkler 2012 IBC system in Separate the entire the basement building adversely An evaluation of affects the the addition from the rest buildings height and historical character of the building, what of the building with fire might barriers and be horizontal done? assemblies, then a sprinkler system is required in the addition only. (IEBC Section and IBC Section ) area (with the addition) would need to be performed as it relates to Chapter 5 of the IBC. (Sections and ) 2012 IEBC Case Strudy IEBC Case Strudy 276 Copyright 2012 International Code Council 69

70 Discussion Activity Questions 6. The handrails 2012 IEBCand guards at 2012 the IBC existing stairs The existing are not handrails in compliance The existing with handrails the current and guards building can code. and Are guards the handrails can and remain guards as they required are as to remain be brought as they up are to as code? long as they are not long as they are structurally not being altered. dangerous. (Section (Section ) ) Discussion Activity Questions 7. Are the new handrails and guards required to comply with the IBC? 2012 IEBC 2012 IBC Yes. (Section ) Yes. (Section ) 2012 IEBC Case Strudy IEBC Case Strudy 278 Copyright Materials International Code Council is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. Certificates of Completion for non-aia members are available on request. This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the presentation without written permission of the speaker is prohibited. International Code Council IEBC Fundamentals IEBC Fundamentals 280 Copyright 2012 International Code Council 70