PROJECT NO. CWA (BC No ) January 11, ADDENDUM NO. 3 McCALLA ELEMENTARY SCHOOL

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1 PROJECT NO. CWA (BC No ) January 11, 2019 ADDENDUM NO. 3 BIDS RECEIVED: JEFFERSON COUNTY BOARD OF EDUCATION TIME: 2:00pm DATE: January 17, 2019 Executive Conference Room THIS ADDENDUM IS DIRECTED TO ALL PRIME BIDDERS, AND ALL OTHERS TO WHOM DRAWINGS AND SPECIFICATIONS HAVE BEEN ISSUED. THIS ADDENDUM FORMS A PART OF THE CONTRACT DOCUMENTS. THE FOLLOWING CONDITIONS TAKE PRECEDENCE OVER ANY CONFLICTING CONDITIONS IN THE DRAWINGS AND SPECIFICATIONS. THE DRAWINGS AND SPECIFICATIONS ARE HEREBY AMENDED IN THE FOLLOWING PARTICULARS GENERAL 1. Allow equals for lighting manufacturers listed on luminaire schedule. Proposed fixtures shall meet all requirements as listed fixtures, subject to the judgement of the architect and engineer who have final determination as to whether proposed fixtures are equal. DRAWINGS 1. Sheet LS1.3 a. Modify Detail 5 to read Max. Shelter Occ. Load: 1268 Persons, to match design Occupant Load listed on Storm Shelter Requirements. 2. Sheet A2.32 a. Digital Sign approved equal: Watchfire, Sign ID: W19i-S with W19mm LED RGB. 3. Sheet A3.01 a. Remove note for Walkway in Attic. No walkway provided. Provide plywood only at attic access door as a landing. (Detail 6/A12.25) 4. Sheet A4.02 a. RWP-1 by 3-Form, acceptable alternative is 3-Form:Vario Ecoresin, HighRes- Color: Birch, 1/4 gauge b. Finish Notes: Flooring designation PC should read PDC for Polished, Dyed Concrete. 5. Sheet A12.11 a. Rooms listed on A4.01 in Kitchen Area with ACT-2 as ceiling material should be provided with vinyl coated ACT. Hatch did not print correctly. 6. MECHANICAL DRAWINGS (State comment changes): a. New HVAC units added and schedules updated. b. New mini-splits added to Electrical/storage rooms: 104, 111, and 143. c. Rerouted ductwork in corridors. d. FEMA and weather louvers added in storm shelter classrooms. e. HVAC added to gym office area. f. Art Classroom AHU updated. Exhaust fan added. g. High/low natural ventilation ductwork for Storm Shelter reworked. h. Added a few more details. i. Added Control drawing and Sequence of Operations. j. Added Sheet M PLUMBING DRAWINGS (State comment changes): a. P6.01- Add Remark to Sump Pump Schedule, for SP-Tank - 59 Gallon Fiberglass Oil Tank b. Kitchen sanitary lines updated. c. Kitchen and isometric drawings were enlarged.

2 d. P2.03/P3.03 Plumbing and sanitary updated due to fixtures removal. e. Plumbing and sanitary lines rerouted in corridors. f. Plumbing Schedules updated. g. Added Sheets P7.04, P7.05, P7.06 and P FIRE PROTECTION DRAWINGS (State comment changes): a. Storm Shelter note and location added. SPECIFICATIONS ALLOWANCES a. Add: L. Allowance No. 12- Water Tap Fees: Allowance Amount: $40, HOLLOW METAL DOORS AND FRAMES a. Add: Republic- DL Series and DF Series as approved manufacturer FLUSH WOOD DOORS a. Add: Eggers Industries as approved manufacturer SECURITY GRILLESa. Para. 2.1-a- Add Wayne Dalton, Model 600 as approved manufacturer WIND AND IMPACT SECURITY WINDOWSa. Para. 2.1.A- Add Winco Window Company- Series 3350 Fixed Series as approved COMMISSIONING OF HVAC- Add attached specification COMMUNICATION SYSTEMS a. Para. 1.04(C)- Delete entirely the Allowance for switches and firewalls. b. Para. 1.04(C)- Delete entirely the Allowance for Video Equipment. 8. Remove Specifications , , and REQUEST FOR INFORMATION/CLARIFICATIONS 1. What is the Seismic Design Category for the job? The Soils Reports lists C and the Structural Engineer lists B. Please clarify. Response: The Soil Site Class is C ; however, the Seismic Design Category is B. The Geotech report is correct and so is the design criteria on general notes. The soil class is a factor taken into account to determine Seismic Design Category. 2. Are the decorative infill panels specified on page A6.01 Exterior Elevation 1A the same panels as listed in the specification Plastic Fabrications? Please clarify. If they are not the same where does each occur? Response: Decorative Metal infill panels as also shown on A5.02, are specified on detail 9/A5.03 This is only used at the entry as shown on A5.02 and A5.04. Specification Plastic Fabrications (Translucent Panels) are for the Translucent Panels (RWP-1) indicated on sheet A Canopy Alternate- to clarify only the bus and front canopies are alternate, all other main door canopies are in base bid. Response: All canopies in base bid to be covered by specification CANOPIES. This includes bus/entry canopy, and main door canopies. Add Alternate is for all canopies to be covered by specification FABRICATED CANOPY SYSTEM. 4. Is the ADEM permit going to be in the Owner s name and transferred to the G.C>? Response: As listed in item 6 on the Pre-Bid Meeting notes, the ADEM permit application process has begun with the Owner s name. It will be transferred to GC. 5. S1.03- Pedestal Schedule No Schedule shown, please clarify. Are there any pedestals?

3 Response: No pedestals are required as drawings are currently. Pedestal detail included in the event that footings need to be lowered for utilities or otherwise during construction coordination. 6. Is it your intent for the concrete walls at the storm shelter to be exposed concrete or covered by drywall? Is the designation PC for painted Concrete? Response: See Addenda 2 for treatment of poured concrete shelter walls. 7. Is 19mm acceptable for the digital signs? Response: 19mm is acceptable 8. Upon review of the Geotech report and allowances, it appears that allowance #3 is only pertaining to rock/concrete/masonry excavation in trenches. Is the intent that if the contractor encounters rock excavation during the mass grading activities of cut/fill that the contractor will be responsible for the rock excavation under the base bid price? Response: See spec section Earthwork for this project is to be bid as unclassified excavation. All grading work shown in the plans is unclassified and included in base bid. No additional compensation will be given regardless of whether this material is soil, rock, debris etc. 9. Please reference Concrete curbs and Gutters. The section 2.1 references ALDOT for concrete curbs. Typically, this is standard 3000 PSI curb mix (non-dot) for county schools. Please clarify if this is acceptable or if and ALDOT curb mix will be required. Response: See spec section part 2.1A. Concrete shall be Class A, type 4 (3000 psi) and must be in accordance with Section 501 of the most current edition of ALDOT standard specifications for highway construction. 10. S2.12 indicates a 2 expansion joint in the slab on grade between Block B & C. Is there a specific expansion joint cover required for this condition? Response: Provide expansion joint cover equal to JointMaster by Inpro Corporation, 104 Series for Floor-to-Floor or Floor-to-Wall conditions. 11. Masonry: Rebar/grout fill spacing for interior masonry walls bearing on a thickened slab? Cannot find anything. Response: Interior non-load bearing masonry walls are not required to have vertical reinforcing or grout, unless otherwise noted in architectural or structural drawings for specific locations. 12. Is there a specification for the composite wood listed an A2.31? Response: Provide product equal to American Plaster Lumber Inc., in nominal sizes indicated on the drawings. END OF ADDENDUM NO. 3 Attachment 1: Specification Commissioning of HVAC Attachment 2: Soil Log for Septic System Attachment 3: Sketch 6/A5.01 Downspout Boot Detail Attachment 4: Full Size Drawings: P2.02, P2.03, P2.04, P2.11, P2.12, P3.02, P3.03, P3.04, P3.12, P3.13, P3.14, P4.01, P7.01, P7.02, P7.03, P7.04, P7.05, P7.06, P7.07, M2.01, M2.02, M2.03, M2.04, M2.11, M2.12, M2.13, M2.14, M4.01, M4.02, M5.03, M6.01, M6.02, M7.01, M7.02, M8.01, FP

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5 CWA PROJECT NO JEFFERSON COUNTY BOARD OF EDUCATION 1.5 UNIT PRICES A. Commissioning testing allowance may be adjusted up or down by the "List of Unit Prices" Article in Division 01 Section "Unit Prices" when actual man-hours are computed at the end of commissioning testing. 1.6 CONTRACTOR'S RESPONSIBILITIES A. Perform commissioning tests at the direction of the CxA. B. Attend construction phase controls coordination meeting. C. Attend testing, adjusting, and balancing review and coordination meeting. D. Participate in HVAC&R systems, assemblies, equipment, and component maintenance orientation and inspection as directed by the CxA. E. Provide information requested by the CxA for final commissioning documentation. F. Provide measuring instruments and logging devices to record test data, and provide data acquisition equipment to record data for the complete range of testing for the required test period. 1.7 CxA'S RESPONSIBILITIES A. Provide Project-specific construction checklists and commissioning process test procedures for actual HVAC&R systems, assemblies, equipment, and components to be furnished and installed as part of the construction contract. B. Direct commissioning testing. C. Verify testing, adjusting, and balancing of Work are complete. D. Provide test data, inspection reports, and certificates in Systems Manual. 1.8 COMMISSIONING DOCUMENTATION A. Provide the following information to the CxA for inclusion in the commissioning plan: 1. Plan for delivery and review of submittals, systems manuals, and other documents and reports. 2. Identification of installed systems, assemblies, equipment, and components including design changes that occurred during the construction phase COMMISSIONING OF HVAC 2 of 6

6 CWA PROJECT NO JEFFERSON COUNTY BOARD OF EDUCATION 3. Process and schedule for completing construction checklists and manufacturer's prestart and startup checklists for HVAC&R systems, assemblies, equipment, and components to be verified and tested. 4. Certificate of readiness, signed by the Contractor, certifying that HVAC&R systems, assemblies, equipment, components, and associated controls are ready for testing. 5. Certificate of completion certifying that installation, prestart checks, and startup procedures have been completed. 6. Certificate of readiness certifying that HVAC&R systems, subsystems, equipment, and associated controls are ready for testing. 7. Test and inspection reports and certificates. 8. Corrective action documents. 9. Verification of testing, adjusting, and balancing reports. PART 2 - PRODUCTS (Not Used) PART 3 - EXECUTION 3.1 TESTING PREPARATION A. Certify that HVAC&R systems, subsystems, and equipment have been installed, calibrated, and started and are operating according to the Contract Documents. B. Certify that HVAC&R instrumentation and control systems have been completed and calibrated, that they are operating according to the Contract Documents, and that pretest set points have been recorded. C. Certify that testing, adjusting, and balancing procedures have been completed and that testing, adjusting, and balancing reports have been submitted, discrepancies corrected, and corrective work approved. D. Set systems, subsystems, and equipment into operating mode to be tested (e.g., normal shutdown, normal auto position, normal manual position, unoccupied cycle, emergency power, and alarm conditions). E. Inspect and verify the position of each device and interlock identified on checklists. F. Check safety cutouts, alarms, and interlocks with smoke control and life-safety systems during each mode of operation. G. Testing Instrumentation: Install measuring instruments and logging devices to record test data as directed by the CxA COMMISSIONING OF HVAC 3 of 6

7 CWA PROJECT NO JEFFERSON COUNTY BOARD OF EDUCATION 3.2 Testing AND BALANCING VERIFICATION A. Prior to performance of testing and balancing Work, provide copies of reports, sample forms, checklists, and certificates to the CxA. B. Notify the CxA at least 10 days in advance of testing and balancing Work, and provide access for the CxA to witness testing and balancing Work. C. Provide technicians, instrumentation, and tools to verify testing and balancing of HVAC&R systems at the direction of the CxA. 1. The CxA will notify testing and balancing Contractor/Subcontractor 10 days in advance of the date of field verification. Notice will not include data points to be verified. 2. The testing and balancing Contractor/Subcontractor shall use the same instruments (by model and serial number) that were used when original data were collected. 3. Failure of an item includes, other than sound, a deviation of more than 10 percent. Failure of more than 10 percent of selected items shall result in rejection of final testing, adjusting, and balancing report. For sound pressure readings, a deviation of 3 db shall result in rejection of final testing. Variations in background noise must be considered. 4. Remedy the deficiency and notify the CxA so verification of failed portions can be performed. 3.3 GENERAL TESTING REQUIREMENTS A. Provide technicians, instrumentation, and tools to perform commissioning test at the direction of the CxA. B. Scope of HVAC&R testing shall include entire HVAC&R installation, from central equipment for heat generation and refrigeration through distribution systems to each conditioned space. Testing shall include measuring capacities and effectiveness of operational and control functions. C. Test all operating modes, interlocks, control responses, and responses to abnormal or emergency conditions, and verify proper response of building automation system controllers and sensors. D. The CxA along with the HVAC&R Contractor/Subcontractor, testing and balancing Contractor/Subcontractor, and HVAC&R Instrumentation and Control Contractor/Subcontractor shall prepare detailed testing plans, procedures, and checklists for HVAC&R systems, subsystems, and equipment. E. Tests will be performed using design conditions whenever possible COMMISSIONING OF HVAC 4 of 6

8 CWA PROJECT NO JEFFERSON COUNTY BOARD OF EDUCATION F. Simulated conditions may need to be imposed using an artificial load when it is not practical to test under design conditions. Before simulating conditions, calibrate testing instruments. Provide equipment to simulate loads. Set simulated conditions as directed by the CxA and document simulated conditions and methods of simulation. After tests, return settings to normal operating conditions. G. The CxA may direct that set points be altered when simulating conditions is not practical. H. The CxA may direct that sensor values be altered with a signal generator when design or simulating conditions and altering set points are not practical. I. If tests cannot be completed because of a deficiency outside the scope of the HVAC&R system, document the deficiency and report it to the Owner. After deficiencies are resolved, reschedule tests. J. If the testing plan indicates specific seasonal testing, complete appropriate initial performance tests and documentation and schedule seasonal tests. 3.4 HVAC&R systems, subsystems, and equipment Testing Procedures A. Boiler Testing and Acceptance Procedures: Testing requirements are specified in Division 23 boiler Sections. Provide submittals, test data, inspector record, and boiler certification to the CxA. B. HVAC&R Instrumentation and Control System Testing: Field testing plans and testing requirements are specified in Division 23 Sections "Instrumentation and Control for HVAC" and "Sequence of Operations for HVAC Controls." Assist the CxA with preparation of testing plans. C. Pipe system cleaning, flushing, hydrostatic tests, and chemical treatment requirements are specified in Division 23 piping Sections. HVAC&R Contractor/Subcontractor shall prepare a pipe system cleaning, flushing, and hydrostatic testing plan. Provide cleaning, flushing, testing, and treating plan and final reports to the CxA. Plan shall include the following: 1. Sequence of testing and testing procedures for each section of pipe to be tested, identified by pipe zone or sector identification marker. Markers shall be keyed to Drawings for each pipe sector, showing the physical location of each designated pipe test section. Drawings keyed to pipe zones or sectors shall be formatted to allow each section of piping to be physically located and identified when referred to in pipe system cleaning, flushing, hydrostatic testing, and chemical treatment plan. 2. Description of equipment for flushing operations. 3. Minimum flushing water velocity COMMISSIONING OF HVAC 5 of 6

9 CWA PROJECT NO JEFFERSON COUNTY BOARD OF EDUCATION 4. Tracking checklist for managing and ensuring that all pipe sections have been cleaned, flushed, hydrostatically tested, and chemically treated. D. Energy Supply System Testing: Provide technicians, instrumentation, tools, and equipment to test performance of gas systems and equipment at the direction of the CxA. The CxA shall determine the sequence of testing and testing procedures for each equipment item and pipe section to be tested. E. Refrigeration System Testing: Provide technicians, instrumentation, tools, and equipment to test performance of chillers, cooling towers, refrigerant compressors and condensers, heat pumps, and other refrigeration systems. The CxA shall determine the sequence of testing and testing procedures for each equipment item and pipe section to be tested. F. HVAC&R Distribution System Testing: Provide technicians, instrumentation, tools, and equipment to test performance of air, steam, and hydronic distribution systems; special exhaust; and other distribution systems, including HVAC&R terminal equipment and unitary equipment. G. Vibration and Sound Tests: Provide technicians, instrumentation, tools, and equipment to test performance of vibration isolation and seismic controls. END OF SECTION COMMISSIONING OF HVAC 6 of 6

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12 2" METAL DOWNSPOUT - SEE ROOF PLAN FOR LOCATIONS CLEANOUT SEE CIVIL DWGS 2" 3'-0" BOOT TYPICAL PREFINISHED CASTIRON DOWNSPOUT BOOT ATTACHED TO WALL FACE OF MASONRY OR STONE WALL FINISH GRADE CAST IRON SLEEVE - HOLD TOP 2" BELOW GRADE. SEAL JOINT BETWEEN BOOT & PIPE SEE CIVIL DRAWINGS PIPE LOCATION SLOPE DOWN MIN 1/8" PER FT SIDE ELEVATION FRONT ELEVATION 6 DOWNSPOUT BOOT DETAIL 1 1/2" = 1'-0" A5.01. Charles Williams & Associates. Inc A R C H I T E C T S TH AVE. SOUTH BIRMINGHAM, ALABAMA PH: FAX: S RE TA TE CHA GISTE RLE N R O S E F E D A.W I A LA LL I B A M H RC AM S EC T I A TS DATE: PROJECT NUMBER: PROJECT NAME: REFERENCE SHEET NO: A5.01