ChatterBank14 mins ago
Expanding foam in insulation?
11 Answers
I'm putting kingspan 100mm foam board insulation into my kitchens flat roof. I've already taken down the plasterboard and put in most of the insulation. My mate reckons I should put expanding foam between the gaps of the boards. Is this overly necessary, and will it make a big difference to the final outcome? I wouldn't bother unless it was going to make a big difference.
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Best Answer
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For more on marking an answer as the "Best Answer", please visit our FAQ.Current thinking is to avoid draughts Flobbers. The better the insulation the more likely cold air is to seek out any gaps ............. thus reducing the value of the insulation.
Mick's idea is a good one. If you do ......... tape the joints (draughts again), and use longer plasterboard screws .
If not ................ then staple a thin polythene vapour check all over the joists before boarding.
Foam can be messy ............. but worth it.
Mick's idea is a good one. If you do ......... tape the joints (draughts again), and use longer plasterboard screws .
If not ................ then staple a thin polythene vapour check all over the joists before boarding.
Foam can be messy ............. but worth it.
As I have already mentioned ... you should use Foil-backed board.
To help you ..
http://www.diynot.com...f9b18743e8147310e15c5
To help you ..
http://www.diynot.com...f9b18743e8147310e15c5