[Greenbuilding] Ceiling Air Barrier

[Sacie Lambertson]

Re RT's suggestion below for insulating the space above the ceiling:

On Mon, Dec 12, 2011 at 11:40 AM, RT <archilogic at yahoo.ca> wrote:

> replacing it with rigid insulation
>

We have tongue and groove ceilings,(albeit not with an attic above) and
rigid foam above that for insulation.  Were I to do it again, I would
alternate the foam in opposite directions, two layers, to make sure I had
less chance of air leaking through.  This was a suggestion made by John
Straube, unfortunately after the ceiling was nearly finished, a good one.

Sacie
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