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4. RE-ROOFING OVER SHAKE <br /> PROCEDURE No. 1 <br /> PREPARATION OF THE EXISTING ROOF CUTBACK <br /> PERIMETER INCLUDES FACIA AND RAKES <br /> n O <br /> j <br /> RIDGES <br /> d <br /> RAKE <br /> 1 <br /> VALLEY <br /> (150mm) <br /> �6"� \\ <br /> 30 Ib.FELT <br /> 9 <br /> © � HIP <br /> i <br /> FASCIA <br /> Use 30#felt to protect this area f. <br /> during installation.Slip felt up 4 <br /> under existing roof felt/material <br /> it <br /> ii <br /> iY <br /> PURPOSE ® With saw, cut back the entire roof O If a'B'fire rating is required, install 72 <br /> perimeter, including rakes, approximately Ib. (3.5Kg/Mj mineral surfaced fiberglass <br /> To create a solid foundation to build from. 6" (150 mm) from the fascia. Set saw cap sheet over entire existing roof surface, <br /> depth to only cut the existing roof material, or 11k' (38 mm)thick, "Listed" foil faced <br /> not sheathing. Where any metal extends fiberglass. Lap 2' (50 mm) at all seams, <br /> PROCEDURES past the roof line, remove it by cutting it securing it with staples or flathead <br /> back with tin snips. composition nails. The foil faced material <br /> O Remove all existing ridge and hip caps When the stricture has no eave overhang, is available from Gerard and installed foil <br /> starting a waste pile on ground. side up. <br /> trim the existing roof back only to the <br /> ®Roll out 30 Ib.(1.5 kg/Mj felt on hips and fascia. A 1" X 4' (25 X 100mm) may be A Check with your local building <br /> ridges. This is optional to protect the required to create a level surface for the 1" department for fire rating specifications. <br /> Structure during installation. X 4"(25 X 100mm)counter-batten. ff fire rating is required underlayment <br /> must still be installed over existing fire <br /> retardant roof materials. <br /> 0 Gerard Roofing Technologies,2001-03-01 Page 29 0--4 GERARD <br />