General Requirements After completion of all roof, perform a final cleaning. Remove from site all construction materials, tools, debris and containment materials. Sweep clean all exterior work areas 4492 ROOF SHEATHING 3/4" 96.00 SF Install 3/4" CDX plywood sheathing nailed 8" on center using plywood clips. PLYWOOD TO USE FOR ROTTED WOOD DECKING. 4550 TPO--FULLY ADHEARED 9.50 SQ ________ ________ Clean all loose materials off of roof. Remove all esisting roofing materials to the roof deck. Install a minimum 60 mil fully adheared polyester scrim reinforced thermoplastic polyolefin roofing membrane (TPO) that meets or exceeds the requirements of ASTM D6878 Standard Specification for Thermoplastic Polyolefin Based Sheet Roofing, and is guaranteed for 15 years in writing by the manufacturer. All roofing, accessories and adhesives shall be approved for use with the roofing material by the roofing manufacturer. All flashing and terminations to adjoining building components shall be per manufacturer's specifications. The roof surface shall be structurally sound and continuously sloped for propper drainage. Install wood nailers at all roof perimeter edges where metal edging and gutter systems are specified or where indicated in the manufacturer's installation requirements. All adheasives shall meet contain less than 250 g/l of VOC content. Roofing shall be installed over a roofing manufacturer's approved polyisocyanurate foam core insualtion board with laminated heavy, black (non-asphaltic) glass fiber reinforced felt facers with no gaps between boards. INSTALL TPO MEMBRANE OVER ENTIRE ROOF, MAIN AND REAR LOWER ROOF.
