pages: CityCouncil/2005-10-18.pdf, 3
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CityCouncil | 2005-10-18 | 3 | The Project Manager responded that the proposed roof would not require annual maintenance; the roof and paint materials have a 25- year guarantee; the architect stated that a coating could be applied if the paint starts to fade after 25 years; cleaning, priming and repainting would be done after 25 years and an additional 25 years would be guaranteed; the cost is between $3 and $6 per square foot, which would amount to approximately $25,000 to $30,000. Mayor Johnson inquired what was the cost difference between a copper roof and the proposed roof. The Project Manager responded the cost difference is approximately $60,000 stated the copper roof was a deductive alternative in the bid package. the architect put in a series of deductive alternatives and add alls in response to budget concerns; the roofing deductive alternative was an approximate $20,000 value; all add alls were rejected and all deductive alternatives were accepted. Mayor Johnson inquired whether the cost difference for installing the cooper roof was $60,000. The Project Manager responded in the negative; stated the value engineering cost was $60,000 there is currently no price on the installation of a copper roof; the contractor stated that work would need to be stopped for 45-65 days until the current subcontract was extinguished, a new subcontract was executed, materials were acquired, and the roof installed the contractor wants to start putting in the heating and cooling duct work; the duct work could get wet if installed before closing the building. Councilmember deHaan inquired what was the roof's base metal. The Project Manager provided a handout responded that the base metal is 24-gage galvalume steel composed of 45% zinc and 55% aluminum. Councilmember deHaan inquired whether there would be deterioration of the base metal without the protective shield. The Project Manager responded in the affirmative; stated the color coating was also warranted for 25 years. Councilmember deHaan stated that copper roofs bleed; inquired whether copper could stain the structure. The Project Manager responded that staining could potentially occur. . Regular Meeting Alameda City Council 3 October 18, 2005 | CityCouncil/2005-10-18.pdf |