It's terrible for insulating. On winter nights it's freezing and on hot days it will give you 3rd degree burns if you touch it. Last week we had 3 days of 40 degree temperatures and when I arrived home from work at 10 PM it was still 30 degrees and the wall burning hot to the touch. The old house with no insulation was the hottest we have experienced it.
I understand the desire for some to "never have to paint again" but this is ridiculous the way this stuff transmits heat and cold into the house :/
Our carpenter needed access to the bearers to set the levels for the extension and discovered that plants had also been growing between the cladding and the weatherboards.I'm not sure about what the polystyrene is supposed to do. I think it's got more to do with preventing contact between the timber and the aluminium. If it's also to provide insulation then it's woefully inadequate!
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