Roofing felt comprises a laminate whose base ply is a polyester fibre fleece and whose top ply is a EPDM elastomer. The fleece is elastic and compressible across its width, its longitudinal elongation being less than its transverse elongation. This serves to compensate for the difference in the ...
1. A laminated adhesive shingle for use in a roof system comprised of rows of shingles comprising: a base layer of roofing material including an attachment flange area near its lower edge for attaching the base layer to a roof; a top layer of roofing material attached to said base layer an...
Use a piece of paper ( I had some tar paper for roofing available) and fold some in half. My first set of oar paddles were 18" long. I suggest some a bit longer. I free hand sketched half of an oar shape. Unfold and trace on to 1/2" plywood. Cut those out with a jigsaw. T...
Ribbed joint patch for single ply roofing membranesA ribbed roof T-joint or butt joint patch is provided for application to intersecting and overlapping portions of a single ply membrane of different heights. When applied to the joint formed by the intersecting and overlapping membranes, the ribbed...
Temperature induced stresses on modified bituminous low-slope roofing systems s. The modified bituminous roof membrane system is a two-ply system comprising of a base sheet and a cap sheet. Existing literatures on the thermal stresses induced in the modified bitumen systems indicate that these system...
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