Putting Up A Moisture Barrier Roof

If you are not sure if you need insulation in your walls follow along with this flow chart.

Putting up a moisture barrier roof.

Make sure to adequately ventilate the attic area above the insulation. Up the wall and fasten it there. Not every wall does. Overlap any seams and tape them.

That reduction of air and moisture infiltration can then help improve roof longevity. And bring the plastic about 6 in. In very cold climates the use of polyethylene plastic vapor barriers between insulation and interior wallboard may be beneficial provided all air gaps into any wall and ceiling cavities are also blocked. Per foot is usually the best thing you can do to reduce crawlspace moisture.

Cover the dirt crawlspace with a plastic moisture polyethylene vapor barrier. After the insulation is in place you will want to add a vapor retarder sometimes called a vapor barrier if you need one. Consult building inspection offices for local recommendations. Your first job after the studs are in place is to fill those walls with insulation.