Hello just purchased a house which used to have a flat roof but was converted to pitched, and as a consequence has 6 inches of fibreglass lying on what used to be the old concrete roof. I really want to board this out and ideally remove the fibreglass. As I have no joists, can I remove all the fibreglass and use either kingspan (then board on top of) or that silver thin material that is super insulating and board on top of that ? Many thanks
Flat to pitched insulation
- Thread starter mdnorth
- Start date
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Yes, you can use kingspan and board on top.
Thank you, how thick would the kingspan have to be to match 6 inches of fibreglass ? cheers
80mm.
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Regulation guidelines say 150mm its your house it depends how warm you want it to feel.
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