[Greenbuilding] taping plywood seams vs. vapor barrier

Reuben Deumling 9watts at gmail.com
Mon Jul 1 07:20:03 MDT 2013


On Mon, Jul 1, 2013 at 5:44 AM, <jfstraube at gmail.com> wrote:

> Yes. It is critical to provide a water control layer!!!!
>
 O.K. So what paper is recommended these days for a water control layer?

All you have done by taping the plywood is produce an air barrier.
>
Which is a function I assumed dense pack cellulose was also achieving.

Building paper or a housewrap installed shingle fashion would be an example
> of a water control layer. Plywood is not.
>
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