taggs101 Posted June 28, 2021 Share Posted June 28, 2021 Does this look the correct way to join grp to felt ? my roofer seems to think so, i'm not so sure. Any advice would be most welcome. Cheers Link to comment Share on other sites More sharing options...
SteamyTea Posted June 28, 2021 Share Posted June 28, 2021 It is relatively easy to put felt onto GRP, never tried the other way around as I know it would cause problems. Have they poured lots of bitumen onto the joint? Link to comment Share on other sites More sharing options...
taggs101 Posted June 28, 2021 Author Share Posted June 28, 2021 not tons, but I really don't like the way the fibre glass is attached to the felt, supposedly it will give way over time, plus if the felt moves it will crack the joint. Link to comment Share on other sites More sharing options...
Mr Punter Posted June 28, 2021 Share Posted June 28, 2021 The upstand is fair enough. Neither GRP or felt look very good. As per @SteamyTea I would have thought felt on top of the GRP. I assume you re the GRP and your neighbour is the felt? Link to comment Share on other sites More sharing options...
taggs101 Posted June 28, 2021 Author Share Posted June 28, 2021 1 hour ago, Mr Punter said: The upstand is fair enough. Neither GRP or felt look very good. As per @SteamyTea I would have thought felt on top of the GRP. I assume you re the GRP and your neighbour is the felt? ye I'm the grp, the roofer reckons fibre onto felt is fine and he's not for trying to do something different, not paid yet so its becoming a bit of a stand off. Link to comment Share on other sites More sharing options...
SteamyTea Posted June 28, 2021 Share Posted June 28, 2021 (edited) 36 minutes ago, taggs101 said: not paid yet so its becoming a bit of a stand off. Run a hose on it for an hour or two. Though I expect it will fail after the summer, differential expansion, felt, being a type of 'wax' will also act as a release agent. Edited June 28, 2021 by SteamyTea Link to comment Share on other sites More sharing options...
PeterW Posted June 28, 2021 Share Posted June 28, 2021 Felt looks knackered anyway - take it the neighbour wasn’t interested in having theirs done too..? Link to comment Share on other sites More sharing options...
taggs101 Posted June 28, 2021 Author Share Posted June 28, 2021 1 hour ago, PeterW said: Felt looks knackered anyway - take it the neighbour wasn’t interested in having theirs done too..? tried to convince her a few times but she recon's her side is fine ! Link to comment Share on other sites More sharing options...
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