is this stuff really as good as 45mm foam insulation
https://www.toolstation.com/thermawrap-self-adhesive-shed-insulation/p69456
and can you lay it under plasterboard or does it rely on the reflective qualities to work?
It's only for a shed so doesnt need to be incredible, but should I just bite the bullet and get 25mm Ikotherm boards to go under plasterboard?
Curious too.
In particular whether you need some sort of vapour barrier. Or if you should have. Especially in a shed type environment. Or is a shed leaky enough for it not to matter. Or should you install an air vent?
@fredtc started
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is this stuff really as good as 45mm foam insulation
https://www.toolstation.com/thermawrap-self-adhesive-shed-insulation/p69456
and can you lay it under plasterboard or does it rely on the reflective qualities to work?
It's only for a shed so doesnt need to be incredible, but should I just bite the bullet and get 25mm Ikotherm boards to go under plasterboard?