Sealing around velux window

eisfspike · Post by **eisfspike** » Wed Sep 06, 2023 4:35 pm

Hi

How would I got about sealing the gap between the tiles and the window? I have attached some pictures. Would expanding foam do the trick? The window is not leaking at present but I van see the underlay so only a matter of time.

Thanks

Someone-Else · Post by **Someone-Else** » Thu Sep 07, 2023 6:49 pm

I would never suggest expanding foam for external use, reason being that after a few years it "dissolves" so does not do the intended job.

When I say dissolves, I don't mean instantly like soap bubbles, but it does take its time, and it gets darker in colour and...........dissolves.
Works as a filler if trimmed then painted though.

eisfspike · Post by **eisfspike** » Thu Sep 07, 2023 7:41 pm

Thanks for that. Any suggestions on what I could use in it's place? Thanks

Grendel · Post by **Grendel** » Sat Sep 09, 2023 8:34 am

Don't velux windows come with a flashing kit ?. It's been a while since I've fitted one . Saying that I can remember a couple of jobs where we made lead flashing to suit. I'd agree with the comment about not using expanded foam.