Forum Discussion
lzasitko
Jul 26, 2008Explorer
ron.dittmer wrote:
A cheap and dirty way to protect all the wood from water would be to use a thick wide roll of plastic house wrap. If any water gets in at the seams, it would stay between the exterior siding and the wood, running down the sides and out. They sell thick cheap 25' x 50' plastic in home improvement centers that would work great.
NO, NO, NO
Plastic never ever goes on the outside! Plastic always goes on the warm side of the insulation (interior), otherwise it traps moisture inside the wall.
Houses by code are not allowed to have plastic on outside, only on the inside of the wall under the drywall. All walls will sweat or have condensation of some sort when there is a temperature difference between inside and outside temps.
Tyvek housewrap is meant for the exterior and allows to breathe but will not allow moisture to go through so by all means wrap it in Tyvek on the outside.
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