What sort of boards / insulation for external insulation?


17 May 2012
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United Kingdom
I want to insulate a small external part of the house inside the storm porch. It's just the area below the windows each side of the door, and the bit above. It gets no rain on it at all. I only plan to put 25mm kingspan insulation on it (stuck on with foam), then board and just paint it all white. The internal wall gets a bit of condensation dampness / mould, so looking to stop that, rather than massively improve insulation. Have improved loft insulation (bungalow) and put insulation in the floor already.

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