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34) Question / CEILING: II insulation
Hello,

Thanks for your reply. You advise me
45 with the vapor barrier if I put 2 layers of wool, the top can also have a vapor barrier?
Thank

Sincerely,

34) Answer / CEILINGS: II insulation
Bj: No need for a vapor barrier for the second layer that goes above the first. The vapor barrier must go against the plasterboard. A + Jorge