What is the proper repair for water damage?
« Back To AskARoofer
HannahFord7
Alan from Oregon asks
"In spring of '22 we noticed water damage coming from a corner of our town home, presumably from the roof or downspout that is adjacent. The HOA had someone come out and said they saw no issues. Separately our building, which is shared with 5 other townhomes, was already slated to have its roof replaced later that year. The replacement took place and we had no further issues until fall of '24 when water damage was again observed on the interior in the same place, as well as on the walls on the floor directly below. It is a 3 story town home with no roof access, so the only photos I've been able to get were with my phone attached to an extension pole. Attached is the best view I could get, does this look like proper repair? It is a TPO roofing membrane, and it sure looks like there are a lot of patch jobs, and visible nail heads."
HannahFord7
A leak can happen at several different entry points such as along the top of the cap metal, around any of the T-patches, or even on the other side of the curb, on the siding. A qualified roofing contractor can probe the T-patches and see if they are properly welded. I recommend calling the contractor that installed the roof first (as they most likely have a workmanship warranty), before contacting other contractors to address the leak.
Thanks for using AskARoofer!
