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acaciaguy

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Hello all,

I have a very small cloakroom to do and they want electric underfloor heating. Contrete base and I have about 10mm depth I can use for insulation board below the heating. What board gives the best insulation?
Many thanks
 

acaciaguy

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Thank you for this. Interesting stuff
 

Dan

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DIY Wall and Floor Tiler
Yeah the difference between having even 6mm compared to nothing is massive. But the difference in having 10mm to 6mm or 20mm to 10mm is negligible.

A 10mm marmox only has 8mm insulation too. XPS board on its own is the way I'd go.
 

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