How have you insulated the manhole on your Garn?
I have the insulation below the rafters complete as of last night except for the manhole opening. I can feel vapor moving upward around the manhole cover and am worried that fiberglass may become saturated and become ineffective.
I believe I read at one time that someone had applied weight to the cover to stop this problem but do not remember if that solution worked.
I have the insulation below the rafters complete as of last night except for the manhole opening. I can feel vapor moving upward around the manhole cover and am worried that fiberglass may become saturated and become ineffective.
I believe I read at one time that someone had applied weight to the cover to stop this problem but do not remember if that solution worked.