Asked on Apr 3, 2015
Roofing using shingle over metal three season porch to stop leaking?
BACKGROUND: We have a Three Season Porch we put on/2002/with a leaking porch roof. Water is going inside the metal panels/running outside/drain holes not into the attached gutters. Also inside, it leaks at the seams. In MI we get 3-6 ft. snow/snow melt/that water is running out of the panels/coming up under our river rock flooring in the porch/causing mold. I spoke to the company that bought out the Three Season Porch assets (the original company out of business now.) They have a Mfg. recommended method of shingling the metal porch roofs. I have those written instructions. Our roofer has these instructions/given us a quote to do it as the mfg. has specified; clean off old caulk/re-caulk seams & shingle using 3 screws per every other course of shingles. When we had our main roof re-shingled last fall, our roofer put a metal flashing between the house roof and the porch roof but the snow is apparently melting into/through the roof seams. MY QUESTION: Has anyone successful re-shingled a metal porch roof in this manner and actually stopped the SERIOUS leaking?