Chapter 19.10 ONE- AND TWO-FAMILY DWELLINGS* * Charter References: Technical code adoption, 5.5. Cross References: General right of entry for inspection, CBJ Code ch. 01.35; zoning districts, CBJ Code ch. 49.25. 19.10.010 CABO One- and Two-Family Dwelling Code (OTFDC) adopted; other applicable codes. 19.10.100 Accessibility. 19.10.202 General building definitions. 19.10.301.1.1 Design of unusually shaped buildings. 19.10.301.1.2 Flood resistant construction. 19.10.Table_301.2a Climatic and geographic design criteria. 19.10.Table_301.2b Design wind loads. 19.10.Table_301.4 Minimum uniformly distributed live loads. 19.10.301.7 Geophysical hazards. 19.10.301.8 Impact loads. 19.10.303.3 Kitchens, bathrooms, and laundry rooms. 19.10.303.6 Required heating. 19.10.309.1 Opening protection. 19.10.310.2 Emergency escapes. 19.10.315.4 Guardrail opening limitations. 19.10.316.1 Smoke detectors required. 19.10.316.1.1 Smoke detectors, alterations, repairs and additions. 19.10.316.2 Power source. 19.10.321.1 Retarder required. 19.10.322.1 Location required. 19.10.401.3 Foundations, drainage. 19.10.401.4.1 Geotechnical evaluation. 19.10.401.6 Previously filled areas. 19.10.402.1 Wood foundations. 19.10.402.1.3 Dampproofing. 19.10.403.1 Footings. 19.10.403.2 Footings for wood foundations. 19.10.403.3 Insulated footings. 19.10.403.4 Foundations bearing directly on the ground. 19.10.404.1 Concrete and masonry foundation walls. 19.10.404.2 Retaining wall design required. 19.10.408.2 Steel column protection. 19.10.409.1 Crawl space ventilation. 19.10.409.3 Removal of debris. 19.10.602.2 Stud size, grade and spacing. 19.10.602.3.1 Wind pressure. 19.10.602.3.2 Stud spacing generally. 19.10.Table_602.3d Table 602.3d, maximum stud spacing. 19.10.Table_602.3e Table 602.3e, maximum stud spacing. 19.10.602.6.1 Single headers. 19.10.602.6.2 Plywood box headers. 19.10.Table_602.6 Maximum spans for headers located over openings in walls. 19.10.602.5 Drilling and notching of studs. 19.10.602.9 Wall bracing. 19.10.702.4 Bathtub and shower spaces. 19.10.702.4.1 Ceramic tile. 19.10.703.2.1 Weather-resistant sheathing paper, felt or material. 19.10.703.3.1 Horizontal siding. 19.10.801.4 Roof-ceiling construction. 19.10.802.3 Framing details.
19.10.802.10 Trusses. 19.10.803.1 Lumber sheathing. 19.10.806.1 Ventilation required. 19.10.903.3 Slopes. 19.10.903.4 Asphalt shingle application. 19.10.1401.3 Heating and cooling equipment, sizing. 19.10.1805 Bathroom, laundry room, kitchen, HRV and listed exhaust ducts. 19.10.1901.1 Duct construction. 19.10.1901.1.1 Construction of aboveground duct systems. 19.10.1901.3.1 Duct joints and seams. 19.10.2101.1 Vents required. 19.10.2101.1 Unvented fuel fired equipment. 19.10.2704.5 Oil pumps and valves. 19.10.2900 Plumbing administration. 19.10.3000 Plumbing definitions. 19.10.3100 General plumbing requirements. 19.10.3200 Plumbing fixtures. 19.10.3300 Water heaters. 19.10.3400 Water supply and distribution. 19.10.3500 Sanitary drainage. 19.10.3600 Vents. 19.10.3700 Traps. 19.10.3800 Private sewage disposal. 19.10.3906.3 Minimum size of conductors. 19.10.4104.2.1 Overhead service-drop and service conductor installation, vertical clearances, above roofs. 19.10.4104.4 Overhead service-drop and service conductor installation, means of attachment. 19.10.4104.5 Overhead service-drop and service conductor installation, service masts as support. 19.10.4203.2 Required branch circuits, kitchen and dining room area receptacles. 19.10.Appendix_A Manufactured housing used as dwellings. 19.10.Appendix_D Swimming pools, spas and hot tubs. 19.10.Appendix_E Energy conservation. 19.10.010 CABO One- and Two-Family Dwelling Code (OTFDC) adopted; other applicable codes. (a) Adoption of one- and two-family dwelling code. For the purpose of regulating the erection, construction, prefabrication, enlargement, alteration, repair, moving, removal, demolition, conversion, occupancy, equipment, use and maintenance of all detached one- and two-family dwellings and one-family townhouses, not more than three stories in height, and their accessory structures located within the City and Borough, there is adopted by reference the "CABO One- and Two-Family Dwelling Code, 1995 Edition," hereinafter OTFDC, published by the Council of American Building Officials, and five copies each of which have been filed in the office of the municipal clerk of the City and Borough or in such place designated by the municipal clerk for public use, inspection and examination and which compilation is made a part of this chapter as if fully set forth in this section, subject only to the enumerated additions, deletions and changes in this chapter. (b) Other codes applicable to one- and two-family dwellings. In addition to the requirements of this chapter, one- and two-family dwellings shall comply with all other applicable codes of the City and Borough including the following codes as modified in Title 19 and where applicable: Title 19.01, Building Codes Administrative Code; Title 19.02, Board of Appeals; 1997 UBC Chapter 16, Structural Design Requirements (As required in item 4 below);
1997 UBC Chapter 32, Construction in the Public Right of Way; 1997 UBC Chapter 33, Site Work, Demolition and Construction; 1997 UBC Chapter 34, Existing Structures; 1997 UBC Appendix Chapter 31, Division I, Flood Resistant Construction; 1997 UBC Appendix Chapter 33, Excavations and Grading; 1997 UBC Appendix Chapter 34, Existing Structures, Divisions I and III; 1997 UPC, Uniform Plumbing Code and Title 19.06, Plumbing Code; 1997 UFC, Uniform Fire Code, Chapter 901.4.4, Premises Identification; 1997 UFC, Uniform Fire Code, Chapter 902, Fire Department Access; Title 19.11, Thermal Code. (c) One- and two-family dwellings are not required to meet the requirements of the building, electrical or mechanical codes except as specifically required in this section. 19.10.100 Accessibility. Delete OTFDC Chapter 1, General administration, except as referred to elsewhere in this code, and add the following: "101 Accessibility. Where disabled access is provided but not otherwise required by the codes, either UBC Chapter 11, Accessibility, the Americans with Disabilities Act (ADA-AG) or the Fair Housing Accessibility Guidelines may be used as guidelines. Where disabled access is required, work shall comply with UBC Chapter 11, Accessibility and ICC/ANSI A117.1-1998." 19.10.202 General building definitions. In OTFDC Section 202, General building definitions: (A) Add the following definitions: "Alley. An alley is a public space or thoroughfare, 20 feet or less, but not less than ten feet in width, which has been dedicated for public use." "Flashing. Flashing is sheet material designed to lead water to the building exterior."
(B) Delete the definition of "Grade" and substitute the following: "Grade. (Adjacent ground elevation) is the lowest point of the finished ground elevation at a distance of five feet from the exterior wall of a building. In case walls are parallel to and within five feet of a public sidewalk, alley or other public way, the finished ground elevation at any point shall be considered to be the elevation of the sidewalk, alley, or public way." 19.10.301.1.1 Design of unusually shaped buildings. In OTFDC Section 301, Design, add a new subsection 301.1.1, Design of unusually shaped buildings, as follows: "301.1.1 Design of unusually shaped buildings." "When of unusual shape, building of light-frame construction shall have a lateral-force-resisting system to resist the forces specified in UBC Chapter 16. One or more of the items of UBC Sections 2320.5.4.1-- 2320.5.4.7 shall be considered to constitute an unusual shape." 19.10.301.1.2 Flood resistant construction. In OTFDC Section 301, add a new subsection 301.1.2, Flood resistant construction, as follows: "301.1.2 Flood resistant construction." "UBC Appendix Chapter 31, Division I, Flood resistant construction, may be required to be followed in one- and two-family dwellings and accessory buildings if special circumstances exist which, in the opinion of the building official, warrant use of these requirements. In UBC Appendix Section 3108.4, Flood resistant foundations, when used for one- and two-family dwellings and accessory buildings, at the end of the first sentence, add "and other engineered foundations" after "piles". Replace "pile" with "foundation" throughout the remainder of this subsection." 19.10.Table_301.2a Climatic and geographic design criteria. In OTFDC Section 301, delete Table 301.2a, Climatic and Geographic Design Criteria, retain the table notes and insert the following new table: TABLE NO. 301.2a CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA Roof Snow load (lbs. per 50 sq. ft.) Wind Speed (mph) 90 or 100 8 Seismic Condition by Zone 2 9 Subject to Damage from 1 :
Weathering Yes, severe Frost Line Depth 32" Subject to Damage from 2 : Termite Decay Winter Design Temperature Radon Resistant Construction No Yes -10 F No Add Notes 8 and 9 to read: "8. Basic wind speed shall be determined by the building official using the Juneau Basic Wind Speed Map, dated 11/17/98." "9. Seismic zone 2 shall apply to all parts of this code except for Section 602.9, Wall Bracing, where seismic zone 3 shall apply." 19.10.Table_301.2b Design wind loads. In OTFDC Table 301.2b, Design wind loads, add Note 7 to read: "7. For elevations above 500 feet above MLLW, the wind speed shall be determined by the building official." 19.10.Table_301.4 Minimum uniformly distributed live loads. In OTFDC Table 301.4, Minimum uniformly distributed live loads, change live load for decks to 60 psf. 19.10.301.7 Geophysical hazards. In OTFDC Section 301, Design, add a new Section 301.7, Geophysical hazards, as follows: "301.7 In Moderate and severe geophysical hazard zones as shown in "Geophysical Hazards Investigation, Juneau, Alaska" dated 10/72 and on the "Landslide and Avalanche Area Maps", both adopted by ordinance serial no. 87-49, or when the building official determines that development is proposed in an area similar in nature to those studied in the above referenced documents but outside of the study area, an engineered structural analysis shall be submitted with the permit application. The building official may waive this requirement upon presentation of more specific studies showing the proposed site is not likely to be affected by geophysical hazards." 19.10.301.8 Impact loads.
In OTFDC Section 301, Design, add a new subsection 301.8, Impact Loads, as follows: "301.8 Impact loads shall be considered in the design and construction of any structure where impact loads may occur such as in moderate and severe geophysical hazard zones referred to in item (9) above." 19.10.303.3 Kitchens, bathrooms, and laundry rooms. In OTFDC Section 303.3, Bathrooms, change title to: "Kitchens, bathrooms, and laundry rooms", delete the exception, delete the first sentence and replace with the following: "All bathrooms, water closet compartments, laundry rooms with more than one clothes washer and one clothes dryer and similar rooms shall be provided with a mechanical exhaust system connected directly to the outside with a minimum rated exhaust capacity of 50 cubic feet per minute and 100 cubic feet per minute for kitchens." 19.10.303.6 Required heating. In OTFDC Section 303.6, Required heating, add the following to the last sentence: "... without involving the combustion of a solid fuel." 19.10.309.1 Opening protection. In OTFDC Section 309.1, Opening protection, in the second sentence after the word "equivalent" add the following: "... with self-closing assemblies." 19.10.310.2 Emergency escapes. In OTFDC Section 310.2, Emergency escapes, in the first sentence after "... sleeping room...," add the following: "or other habitable room over 70 square feet and not used for cooking, eating or living room uses unless also used for sleeping." At the end of OTFDC Section 310.2, Emergency escapes, add the following sentence: "The building official may accept a recorded deed restriction as an alternative to this requirement when the current use of the space will clearly not include sleeping."
19.10.315.4 Guardrail opening limitations. In OTFDC Section 315.4, Guardrail opening limitations, in the first sentence change "four inch (102 mm)" to read "six inch (152 mm)." 19.10.316.1 Smoke detectors required. In OTFDC Section 316.1, Smoke detectors required, in the first sentence after "... sleeping room...," add the following: "or other habitable room over 70 square feet and not used for cooking, eating or living room uses unless also used for sleeping." At the end of OTFDC Section 316.1, Smoke detectors required, add the following sentences: "The building official may accept a recorded deed restriction as an alternative to this requirement when the current use of the space will clearly not include sleeping." "In a multi-story dwelling, when sleeping rooms are on an upper level, a detector shall be placed at the ceiling of the upper level in close proximity to the stairway if there is no door or other obstruction at the top of the stairway to block the path of smoke and near the ceiling at the bottom of the stairway if there is such an obstruction at the top of the stairway. If there is a door between levels, one detector shall be installed on the lower level side of the door near the ceiling at the bottom of the interconnecting stairs." 19.10.316.1.1 Smoke detectors, alterations, repairs and additions. In OTFDC Section 316.1.1, Smoke detectors, alterations, repairs and additions, add the following exception: "Exception: Repairs to the exterior surfaces of a Group R occupancy are exempt from the requirements of this section." 19.10.316.2 Power source. In OTFDC Section 316.2, Power source, add the following to the end of the last sentence: "... or when installed in existing buildings where they are not required to be interconnected in Section 316.1.1." 19.10.321.1 Retarder required. Delete OTFDC Section 321.1, Retarder required, and the exceptions and refer to chapter 19.11, Thermal
Code. 19.10.322.1 Location required. In OTFDC Section 322.1, Location required, delete Item 2, and add the following: "2. All sills or plates which rest on concrete or masonry." 19.10.401.3 Foundations, drainage. In OTFDC Section 401.3, Foundations, drainage, delete the last sentence and add the following: "The grade away from foundation walls shall be a minimum of two percent positive grade within the first five feet." In the exception to OTFDC Section 401.3, Drainage, change "six inches (153 mm) of fall within ten feet (3,048 mm)" to read "two percent slope within five feet (1,524 mm)." 19.10.401.4.1 Geotechnical evaluation. In OTFDC Section 401.4.1, Geotechnical evaluation, delete the entire section and Table 401.4.1. 19.10.401.6 Previously filled areas. In OTFDC Section 401.6, Previously filled areas, add a new paragraph reading as follows: "Each application for a permit for construction in an area which has been previously filled without a grading permit, was an exception to UBC Appendix Chapter 33 of the applicable building code or was not filled in compliance with the applicable provisions of UBC Appendix Chapter 33 in effect when the fill was made or which appears to the building official to have an inadequate soil bearing capacity shall be accompanied by an engineering report and recommendation by a qualified engineer with substantial experience in soils or geologic engineering licensed to practice in the state; the building official shall incorporate in the permit those recommendations contained in the report which the building official deems necessary together with such other requirements as may be necessary to ensure the stability and safety of the proposed structure." 19.10.402.1 Wood foundations. In OTFDC Section 402.1, Wood foundations, add the following: "Foundation walls shall be restrained at the footing line by the following method:"
"A minimum four-inch by four-inch nominal size pressure treated or decay-resistant member installed immediately adjacent to the wall and bolted to the footing with one-half inch diameter stainless anchor bolts maximum two feet zero inches on center. The maximum soils height against the wall shall be three feet zero inches." 19.10.402.1.3 Dampproofing. Add a new OTFDC Section 402.1.3, Dampproofing, as follows: "402.1.3 Dampproofing. Approved dampproofing shall be applied over the below-grade portion of exterior basement and crawl space walls prior to backfilling. A treated lumber or plywood strip shall be attached to the wall to cover the top edge of the approved dampproofing. The wood strip shall extend at least two inches above and five inches below finish grade level to protect the approved dampproofing from exposure to light and from mechanical damage at or near grade. The joint between the strip and the wall shall be caulked full length prior to fastening the strip to the wall. Alternatively, brick, stucco, or other covering appropriate to the architectural treatment may be used in place of the wood strip. The approved dampproofing shall extend down to the bottom of the concrete footing." 19.10.403.1 Footings. In OTFDC Section 403.1, Footings, general, delete the second and third sentences and add the following: "Minimum standards for concrete and masonry footings shall be as set out in the City and Borough `Standard CBJ Foundations' dated September 1, 1998. The building official may approve a stamped, engineered foundation in lieu of the City and Borough standard." 19.10.403.2 Footings for wood foundations. In OTFDC Section 403.2, Footings for wood foundations, delete Section 403.2, Table 403.1 and Figures 403.1a, 403.1b and 403.1c and add the following: "Wood foundations shall have a 10-inch thick by 16-inch wide concrete footing." 19.10.403.3 Insulated footings. In OTFDC Section 403.3, Insulated footings, add the following as the last sentence of this section: "For purposes of this section only, the air freezing index for Juneau is 3,000."
19.10.403.4 Foundations bearing directly on the ground. In OTFDC Section 403, Footings, add a new Section 403.4 as follows: "403.4 Foundations bearing directly on the ground. Exterior decks, landings, and platforms not rigidly attached to a building and not greater than 30 inches above grade; and uninhabited one-story wood-framed, metal-framed and membrane buildings not over 400 square feet (37.2 m 2 ) in floor area may bear directly on the ground. Bearing materials shall meet other portions of this code." 19.10.404.1 Concrete and masonry foundation walls. In OTFDC Section 404.1, Concrete and masonry foundation walls, delete Section 404.1, Table 404.1.1a and 404.1.1b and add the following: "Masonry and concrete foundation walls may be designed per City and Borough `Standard CBJ Foundations' brochure dated January 1, 1999 and available in the office of the building official." 19.10.404.2 Retaining wall design required. In OTFDC Section 404.2, Design required, add a new sentence to the end of the subsection reading: "Walls retaining more than four feet of unbalanced earth shall be designed as retaining walls." 19.10.408.2 Steel column protection. In OTFDC Section 408.2, Steel column protection, add "Exterior" to the title and delete the words "inside and outside." 19.10.409.1 Crawl space ventilation. In OTFDC Section 409.1, Crawl space ventilation, in exception 4, change "Section 2104" to "Section 1901.4." 19.10.409.3 Removal of debris. In OTFDC Section 409.3, Removal of debris, add the following sentence: "For skirted buildings placed over muskeg, muskeg may remain but shall be covered with minimum six mil ground cloth of polyethylene sheeting."
19.10.602.2 Stud size, grade and spacing. Delete OTFDC Section 602.2, Grade, and replace with the following: "602.2 Studs shall meet or exceed size, grade and spacing for the height as shown in Table 602.3d or Table 602.3e unless supported by calculations sealed by an architect or engineer registered by the state. 19.10.602.3.1 Wind pressure. Delete OTFDC Section 602.3.1, Pounds per square foot wind pressure. 19.10.602.3.2 Stud spacing generally. Delete OTFDC Section 602.3.2, Stud spacing. 19.10.Table_602.3d Table 602.3d, maximum stud spacing. Delete OTFDC Table 602.3d, Maximum stud spacing and replace with the attached table: Table 602.3d, Maximum Stud Spacing - 100 mph. 19.10.Table_602.3e Table 602.3e, maximum stud spacing. Add the attached table: Table 602.3e, Maximum Stud Spacing - 90 mph. 19.10.602.6.1 Single headers. Delete OTFDC Section 602.6.1, Single headers. 19.10.602.6.2 Plywood box headers. Delete OTFDC Section 602.6.2, Plywood box headers. 19.10.Table_602.6 Maximum spans for headers located over openings in walls. Delete Table 602.6, Maximum Spans for Headers Located Over Openings in Walls, and replace with the attached table: Table 602.6, Maximum Spans For Headers Located Over Openings In Walls. 100 MPH WIND SPEED Table 602.3d MAXIMUM STUD SPACING (Inches)
ting EXPOSURE C Supporting EXP One Floor, Roof and Two Floors, Roof and Roof and Floor One Floor, Roof and Two Floors, Roof and Roo 16 16 24 16 16 24 16 16 24 24 16 24 16 16 24 24 16 24 16 12 24 16 12 24 16 12 16 16 12 24 16 12 24 16 16 24 12 12 16 16 12 24 12 -- 16 12 12 24 12 12 16 16 12 24 Footnotes: (1) Roof and ceiling loads represent trusses spanning 32 feet with 20 psf dead load, 50 psf snow load and double snow load on two-foot eaves. (2) Each floor load represents ten-foot tributary area with a 20 psf dead load and 40 psf live load. (3) Wind loads determined per 1997 Uniform Building Code. (4) Studs supporting two floors, roof and ceiling are limited to 16 inch spacing due to plate crushing. (5) Alternate stud sizes, grades, spacing and heights are allowed if sealed by an engineer registered in the State of Alaska. 90 MPH WIND SPEED Table 602.3e MAXIMUM STUD SPACING (Inches) ting EXPOSURE C Supporting EXP One Floor, Roof and Two Floors, Roof and Roof and Floor One Floor, Roof and Two Floors, Roof and Roo 16 16 16 16 16 24 16 16 16 24 16 24 24 16 16 24 16 24 16 16 24 16 16 24 16 16 24 16 16 24 24 16 24 24 16 24 16 12 16 16 12 24 16 12 16 16 12 24 16 16 24 16 16 24 Footnotes:
(1) Roof and ceiling loads represent trusses spanning 32 feet with 20 psf dead load, 50 psf snow load and double snow load on two-foot eaves. (2) Each floor load represents ten-foot tributary area with a 20 psf dead load and 40 psf live load. (3) Wind loads determined per 1997 Uniform Building Code. (4) Studs supporting two floors, roof and ceiling are limited to 16 inch spacing due to plate crushing. (5) Alternate stud sizes, grades, spacing and heights are allowed if sealed by an engineer registered in the State of Alaska. TABLE 602.6 MAXIMUM SPANS FOR HEADERS LOCATED OVER OPENINGS IN WALLS (Feet) HEADERS IN BEARING WALLS Supporting SIZE OF HEADER Roof and One Floor, Roof and Two Floors, Roof and 2 X 4 -- -- -- 3 2 X 6 -- -- -- 5 2 X 8 -- -- -- 6 2 X 10 3 -- -- 8 2 X 12 4 -- -- 9 2-2 X 4 -- -- -- 5 2-2 X 6 3 -- -- 8 2-2 X 8 4 -- -- 10 2-2 X 10 5 3 -- 13 2-2 X 12 6 3 3 15 3-2 X 4 -- -- -- 7 3-2 X 6 4 -- -- 10 3-2 X 8 5 3 -- 13 3-2 X 10 7 4 3 16 3-2 X 12 8 5 4 18 HEADERS IN NON- BEARING PARTITION WALLS Footnotes: (1) Nominal four-inch thick single headers may be substituted for double members. (2) Spans are based on hem fir no. 2 material; roof trusses spanning 32 feet with two foot overhangs, 20 psf dead load, 50 psf snow load and 100 psf snow load on eaves; floors with tributary widths of ten feet, 20 psf dead loads and 40 psf live loads. 19.10.602.5 Drilling and notching of studs. In OTFDC Section 602.5, Drilling and notching studs, add a paragraph as follows:
"All studs in shear walls bearing walls and exterior walls containing plumbing drains and vents shall be a minimum six-inch nominal width unless otherwise approved." 19.10.602.9 Wall bracing. In OTFDC Section 602.9, Wall bracing, for this section only, use seismic zone 3. Seismic zone 2 shall apply to all other sections of this code. 19.10.702.4 Bathtub and shower spaces. In OTFDC Section 702.4 Bathtub and shower spaces, add a sentence at the end of the paragraph as follows: "Gypsum board shall not be used on exterior walls in shower and bathtub spaces as a backer for noncontinuous waterproof surfaces such as tile or seamed waterproof panels." 19.10.702.4.1 Ceramic tile. In OTFDC Section 702.4.1, Ceramic tile, add "Water resistant" to beginning of the section. 19.10.703.2.1 Weather-resistant sheathing paper, felt or material. In OTFDC Section 703.2.1, Weather-resistant sheathing paper, felt or material, delete exceptions 2--5. 19.10.703.3.1 Horizontal siding. In OTFDC Section 703.3.1, Horizontal siding, add the following: "Exterior type plywood siding with a grooved pattern shall not be installed horizontally as the weather resistant siding." 19.10.801.4 Roof-ceiling construction. In OTFDC Section 801, Roof-ceiling construction, general, add a new Section 801.4 as follows: "801.4 Sliding snow and ice. Roofs shall be designed so that snow is not discharged onto public ways, onto adjoining property, onto or against other buildings or in a manner that blocks any required exit from any building excepting yards."
19.10.802.3 Framing details. In OTFDC Section 802.3, Framing details, add a paragraph as follows: "Minimum depth from roof sheathing to wall plate at exterior walls to be nine inches for habitable spaces." 19.10.802.10 Trusses. In OTFDC Section 802.10, Trusses, add a paragraph as follows: "Minimum depth of truss at exterior wall plate to be nine inches for habitable spaces." 19.10.803.1 Lumber sheathing. Delete OTFDC Section 803.1, Lumber sheathing, in its entirety. 19.10.806.1 Ventilation required. In OTFDC Section 806.1, Ventilation required, delete the following from the first sentence: "Where determined necessary by the building official due to atmospheric or climatic conditions." 19.10.903.3 Slopes. In OTFDC Section 903.3, Slopes less than four units horizontal (33-percent slope) but not less than two units vertical in 12 units horizontal (17-percent slope), delete the words "two units" and substitute "three units" in the title and in the first and last sentence. 19.10.903.4 Asphalt shingle application. In OTFDC Table 903.4, Asphalt shingle application, change 2:12 to 3:12 in the column headings and "2 inches in 12 inches" to "3 inches in 12 inches" in the row entitled "Underlayment". 19.10.1401.3 Heating and cooling equipment, sizing. In OTFDC 1401.3 Heating and cooling equipment, sizing, change the word "shall" to "may." 19.10.1805 Bathroom, laundry room, kitchen, HRV and listed exhaust ducts.
Add a new OTFDC Section 1805, Bathroom, laundry room, kitchen, HRV and listed exhaust ducts, as follows: "1805 Bathroom, laundry room, kitchen, HRV and listed exhaust ducts. Bathroom, laundry room and kitchen room exhaust ducting and HRV ducting may be of smooth plastic, smooth metal or flexible metal. Ducting included as a part of a listed appliance may also be used as listed with that appliance." 19.10.1901.1 Duct construction. In OTFDC Section 1901.1, Duct construction, add the following sentence to the end of this section: "Environmental air and ventilation ducts shall comply with this chapter." 19.10.1901.1.1 Construction of aboveground duct systems. In OTFDC Section 1901.1.1, Duct construction, aboveground duct systems, delete item 4, gypsum products. 19.10.1901.3.1 Duct joints and seams. In OTFDC Section 1901.3.1, Duct joints and seams, add the following as the last sentence: "No cloth tape, mesh or similar tapes are allowed. The use of foil tape is approved." 19.10.2101.1 Vents required. In OTFDC Section 2101.1, Vents required, delete the words "except appliances listed and labeled for unvented use" from the first sentence. 19.10.2101.1 Unvented fuel fired equipment. In OTFDC Section 2101.1, Vents required, add the following as the last sentence: "Unvented fuel fired equipment is not permitted." 19.10.2704.5 Oil pumps and valves. In OTFDC Section 2704, Oil pumps and valves, add a new subsection 2704.5, Oil safety valves, as follows:
"2704.5 Oil safety valves. On all oil-burning applications where the top of the oil storage tank is above the level of the oil burner, an oil safety device shall be installed at the burner to preclude oil siphoning." 19.10.2900 Plumbing administration. Delete OTFDC Chapter 29, Plumbing administration, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code. 19.10.3000 Plumbing definitions. Delete OTFDC Chapter 30, Plumbing definitions, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code. 19.10.3100 General plumbing requirements. Delete OTFDC Chapter 31, General plumbing requirements, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code. 19.10.3200 Plumbing fixtures. Delete OTFDC Chapter 32, Plumbing fixtures, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code. 19.10.3300 Water heaters. Delete OTFDC Chapter 33, Water heaters, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code. 19.10.3400 Water supply and distribution. Delete OTFDC Chapter 34, Water supply and distribution, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code. 19.10.3500 Sanitary drainage. Delete OTFDC Chapter 35, Sanitary drainage, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code.
19.10.3600 Vents. Delete OTFDC Chapter 36, Vents, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code. 19.10.3700 Traps. Delete OTFDC Chapter 37, Traps, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code. 19.10.3800 Private sewage disposal. Delete OTFDC Chapter 38, Private sewage disposal, and refer to chapter 19.06 for adoption of the Uniform Plumbing Code. 19.10.3906.3 Minimum size of conductors. In OTFDC Section 3906.3, Minimum size of conductors, add the following as the second paragraph: "Branch-circuit conductors supplying loads other than cooking appliances shall have an ampacity sufficient for loads served and shall not be smaller than AWG No. 10 copper for each storage-type electric water heater and AWG No. 12 for other uses, provided that this requirement shall not apply to structures manufactured and wired outside the City and Borough if such structures have been inspected in the state of manufacture under a state approved inspection system and are certified as meeting the requirements of Chapters 39--46 of this code or NEC Section 210-19(c)." 19.10.4104.2.1 Overhead service-drop and service conductor installation, vertical clearances, above roofs. In OTFDC Section 4104.2.1, Overhead service-drop and service conductor installation, vertical clearances, above roofs, delete exception number 3. 19.10.4104.4 Overhead service-drop and service conductor installation, means of attachment. In OTFDC Section 4104.4, Overhead service-drop and service conductor installation, means of attachment, add a new sentence to the end of the paragraph to read as follows: "Where, in the opinion of the building official, conditions of terrain make it impractical to comply with this requirement, the building official may authorize the use of live trees for support of overhead conductor spans or other electric equipment."
19.10.4104.5 Overhead service-drop and service conductor installation, service masts as support. In OTFDC Section 4104.5, Overhead service-drop and service conductor installation, service masts as support, add a new paragraph as follows: "Exterior service equipment shall be protected from roof drainage and snow from roof eaves. Masts for aerial services shall be a minimum of two-inch rigid steel conduit." 19.10.4203.2 Required branch circuits, kitchen and dining room area receptacles. In OTFDC Section 4203.2, Required branch circuits, kitchen and dining room area receptacles, add a new sentence as follows: "A separate 20 ampere circuit shall be installed for each dishwasher." 19.10.Appendix_A Manufactured housing used as dwellings. OTFDC Appendix A, Manufactured Housing Used as Dwellings, is hereby adopted. 19.10.Appendix_D Swimming pools, spas and hot tubs. OTFDC Appendix D, Swimming Pools, Spas and Hot Tubs, is hereby adopted with the following changes: Section 105.5 Barrier exceptions: In the first sentence delete the word "portable", add "or hot tub" after the word "spa," and in the last sentence delete the words "hot tubs and non-portable spas." 19.10.Appendix_E Energy conservation. OTFDC Appendix E, Energy Conservation, is hereby adopted with the following changes: Delete the first sentence and add the following new sentence: "Energy conservation requirements shall conform to chapter 19.11, Thermal Code."