roof insulation

rocastle · 23 Aug 2006

I am building a flat roof 2.7m in depth by 4.7m.

Does anyone know the minimum depth of insulation I must install between the joists.

Is it cost effective to use an insulation board/ smaller joists compared to using traditional rckwall with 8x2 or 6x2

Cheers

diynot

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roof insulation

rocastle

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