A. All necessary field and flashing repairs must be done according to good construction practices, including the removal of all wet insulation and defective materials as identified through a moisture detection survey such as an infrared scan and replacement with like-materials. 1. All single-ply seams must be checked and any loose seams must be resealed, or if necessary, replaced with new single-ply materials. 2. Repair any single-ply membrane that has shrunk and is tenting at walls. 3. Repairs should be made with cured single-ply membrane. B. Carefully powerwash all roof surfaces with greater than 2,000 psi pressure to remove debris, rust, scale, dirt, dust, chalking, peeling, flaking coatings, etc. Do not force water into the roof system or damage roof surfaces. C. Apply fabric reinforcement to all membrane seams, in the field and flashings, and fully saturated with Cool-Sil coating and allow to cure before applying field coating. D. Apply Cool-Sil, at a rate of 2.5 gal/sq, over the entire roof surface, including flashings. Back roll as necessary to ensure uniform minimum coverage.
