I had a contractor build a patio cover out of cedar and 4×4 glass panes. He never could get the roof to stop leaking though he used several products. Water would eventually always leak somewhere around the joint of the glass and the tin lip he had laid the glass in. I just applied your product and am confident I finally found the right sealant to stop the leaks. I can BBQ in the dry for once without drips all over the patio roof. Great product! I just wanted to drop a line about your product.