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08
City of Pleasanton
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CITY CLERK
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AGENDA PACKETS
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2022
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120622
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08
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11/30/2022 12:09:29 PM
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11/30/2022 12:09:27 PM
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CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
12/6/2022
DESTRUCT DATE
15Y
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1. Structural Repairs to Roof Decking <br /> The existing blocking between the roof truss was not connected to the roof truss, <br /> allowing the sheeting to move, which loosened the plywood nails. The structural <br /> engineer recommended repairing blocking at key areas and stapling the existing <br /> plywood to replace the loose nails. <br /> 2. Additional Stucco Removal and Installation <br /> The limits of stucco replacement were expanded on the upper south side of the <br /> building (facing Bernal Avenue) due to failed waterproofing behind the existing <br /> stucco. Additional stucco was removed to install new flashing between the roof <br /> and the walls after the existing flashing that was to be reutilized was found to be <br /> in worse condition than originally thought. <br /> 3. Address Concentrated Roof Water <br /> The roof has large valleys that drain through a single point. After removing the <br /> roof at these locations, extensive water damage was encountered. To prevent <br /> future failures, additional downspouts and metal flashing were added, armoring <br /> the areas against premature failures. <br /> 4. Window System Change for Seismic Bracing <br /> The specified window system had a wider frame that conflicted with the seismic <br /> bracing of the building. The window system was changed to a system with a <br /> thinner frame that could accommodate the seismic braces. <br /> 5. Plywood Replacement at Eaves <br /> The plywood at the eaves was found to have early stages of dry rot and the <br /> structural engineer recommended that it be removed and replaced. The work <br /> includes coating the underside of the eaves to prevent future deterioration of the <br /> wood. <br /> 6. Miscellaneous Wood Repairs <br /> Water-damaged wood was repaired in various areas throughout the roof. It <br /> included repairs to the fascia boards, roof decking, blocking and valley areas. <br /> An additional $294,938 of potential change orders has been identified to replace the <br /> gable end windows, relocate the HVAC equipment to install maintenance access <br /> ladders, and cover the costs to address project delays. The work is as follows: <br /> 7. Gable End Windows <br /> As mentioned above, the existing windows were found to be primarily held in <br /> place by stucco and not connected to the framing as required. In addition, the <br /> windows did not have waterproofing around their openings and showed signs of <br /> water instruction at many locations. The clerestory windows are included in the <br /> contract, but the gable end windows were not included. To correct the issue, the <br /> gable end windows need to be pulled out, have window framing added, then <br /> flashed and reinstalled. The architect recommended the installation of new <br /> windows instead of the reuse of the existing windows to improve energy <br /> Page 3of5 <br />
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