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Orange County Public Works <br />Roof Asset Management Program <br />Remedial Work -1999 <br />Government Services Annex <br />Sector 4- 300 sq. ft. <br />A. Removal of the existing built -up roof system including flashing and <br />accessories down to the deck. <br />B. Replacement of damaged or deteriorated wood blocking. New <br />blocking will be required at all roof areas to match the thickness of <br />new insulation. <br />C. Installation of new tapered polyisocyanurate board insulation. <br />Minimum thickness at low points to be 1.5 inch (R- 10.0). <br />D. Installation of a multiple ply modified bitumen membrane roof <br />system including all flashing and accessories. Systems include <br />those manufactured by Siplast, Soprema, TAMKO, and Firestone. <br />System to include manufacturer 20 -year No Dollar Limit Warranty. <br />Consideration may be given to other systems such as single ply <br />depending on budget refinement. <br />E. Installation of new 24 gauge prefinished sheet metal flashing and <br />trim. <br />Subtotal $ 2,800 <br />Contingency — 5% $ 140 <br />Total Preliminary Construction Cost $ 2,940 <br />Sector 5 — 300 sq. ft. <br />A. Removal of the existing EPDM roof system including flashing and <br />accessories down to the deck. <br />B. Replacement of damaged or deteriorated wood blocking. New <br />blocking will be required at all roof areas to match the thickness of <br />new insulation. <br />C. Installation of new tapered polyisocyanurate board insulation. <br />Minimum thickness at low points to be 1.5 inch (R- 10.0). <br />ffff <br />fiYC/NEfi9/�N6= <br />[U, <br />