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Orange County Public Works <br />Roof Asset Management Program <br />Remedial Work -1999 <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 trim. <br />Subtotal $ 35,530 <br />Contingency — 5% $ 1,775 <br />Total Preliminary Construction Cost $ 37,305 <br />Sector 4 — Shingles (4,200 sq. ft.) <br />A. Removal of existing shingles and underlayment down to the deck. <br />B. Repair of deck if needed. <br />C. Installation of new underlayment and fiberglass shingles. <br />D: Installation of new sheet metal flashing. <br />Subtotal $ 13,230 <br />Contingency — 5% $ 660 <br />Total Preliminary Construction Cost $ 13,890 <br />Sector — EPDM (5,900 sq. ft.) <br />Maintenance only $ 500 <br />Total Cost —All Sectors 210 515 <br />North Side — Building 1 <br />Sector 1 — Shingles (1,900 sq. ft.) <br />Maintenance only $ 500 <br />&H <br />fNG/rYffiOffis <br />52 <br />