October 7, 20215 yr Up to roof level and about to install the timbers. We are having hand made clays and I want as much insulation as possible as we have used Durisol blocks as main construction due to their U value. Husband is being told to use multi layer insulation and I want as deep as possible warm roof. We have put this material under our barn roof and it does make a difference, but I don't live in it! Has anyone else used a thick warmroof under tiles, is this possible at all due to possible fixing problems? Any info at all would be helpful please.
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