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Insulation plasterboard
- Thread starter Ssan diy
- Start date
If your wall is flat you could mechanically fix insulated plasterboard to the existing wall, would save a few mm compared to dot'n'dab.
I assume the extension is old? Are you sure the roof is adequately insulated? A lot more heat is lost via the roof than the walls
I assume the extension is old? Are you sure the roof is adequately insulated? A lot more heat is lost via the roof than the walls
Is that the inner skin of a flat roof? There lies your biggest heat loss if so! 100mm or more Celotex or similar would resolve it. If you have the headroom go over with 15mm insulated plasterboard too to reduce any cold spots.
Add what you can to the walls, but even a little will help a lot.
Add what you can to the walls, but even a little will help a lot.
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