Hi all, Ive recently bought a 1929 semi and have noticed that the entire inside of the roof is spray foamed. Unfortunatley I have a few slipped tiles now after some strong wind and missing motar on the ridge. I have been told bad things about the spray insulation but on a quick removal test found it to have not felt under the slate. I have had a roofer out and theyre recommending a re-roof @14k which I really cant afford. I'm fairly competent at most DIY so I'm thinking letting the repair the roof and from the inside remove the foam as best as possible. I'm thinking it may damage some of the mortar between the tiles an batoning but what I want to know is could it be salvaged without replacing all of the original good slates?
Roof in my 1929 Semi
- Thread starter Rooky1
- Start date
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A new roof is always recommended where spray foam is concerned, and at £14k you can see why!
If it were me I'd rather spend a few weekends with a handsaw, wallpaper scraper, paper suit and mask than fork out for a new roof.
If it were me I'd rather spend a few weekends with a handsaw, wallpaper scraper, paper suit and mask than fork out for a new roof.
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Ive done a 10cm x10cm square and have managed to pull it away in chunks. It'll take a while to do though but my labour is free obviously I prefer that route and I'm confident I can do it. Is there any recommendations of what to use when I do get it all off? As there is no felt can I use the reflective foil lining and either panel insulation or roll insulation?
Thanks all
10x10cm? Or do you mean 1x1m?
Not tried it, but I would have thought a multitool with a scraper blade would be useful.
In the medium term, a re-roof might be needed, I can only speak for my own (1930's with rosemary tiles) but it was absolutely shot, tiles ok but large areas of rotten battens and rusty fixing nails. One thing to consider, that spray foam used to be marketed as a "solution" to what I've just described, ie it will stick all the rotten crap together - so be wary of what you find if you remove it!
In the medium term, a re-roof might be needed, I can only speak for my own (1930's with rosemary tiles) but it was absolutely shot, tiles ok but large areas of rotten battens and rusty fixing nails. One thing to consider, that spray foam used to be marketed as a "solution" to what I've just described, ie it will stick all the rotten crap together - so be wary of what you find if you remove it!
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