D70 Park View School Summer 2023 Roof Replacements

Project has been rebid For D70 Park View School Summer 2023 Roof Replacements The Project Base Bid Work generally consists of replacement of roofing on Roof Area 16: 1. Where applicable, adjust drain heights to accommodate new roof and insulation height; 2. Removal and legal disposal of existing roof system, insulation and related flashings down to existing gypsum deck; a. Where indicated, removal and safely storage of existing cleat coping, for re-installation; 3. Disconnecting of existing exhaust fan, to allow for new flashings, and re-installation of using existing holes; 4. Disconnecting of existing HVAC unit, to allow for new blocking flashings, and re-installation of using existing holes; 5. Disconnecting of gas lines as required to provide access for roofing Work; 6. Removal of abandoned conduit; 7. Providing new roof hatch at existing location, as indicated on Contract Drawings; 8. Providing a nailed base sheet, mechanically attached; 9. Providing a 2-ply substrate membrane in hot asphalt; 10. Providing 2 layers of 2.6-inch polyisocyanurate insulation, adhered; 11. Providing a 1/2-inch high-density coverboard, set in adhesive; 12. Providing 60-mil fully-adhered EPDM single-ply roof membrane; 13. Providing new prefinished sheet metal flashings at perimeters of roof area and at projections, as required; 14. Preparing and painting gas lines after reinstallation.

Division 07 -

Thermal and Moisture Protection, Dampproofing and Waterproofing, Thermal Protection.