grp dry valley

Hi, I have stripped out a part of my roof that had beed previously fitted with Klober dry valleys, before that they were lead. These were fitted by a professional roofer about six years ago but have leaked ever since. I have found that the dry valleys (Klober with centre upstand) were just...

Hi, I had 2 GRP dry valleys installed (replacing old style ones) and the tiles seem to have some distance from the middle ridge. My roofer claims they don't need to be flush as long as they are past the inner rivet. Neighbour's roofer disagrees. GRP valley specs/ installation guides are not...