http://renovatedsm.com/node/67 Comments for "Vapor Barriers" en http://renovatedsm.com/node/67 <h4>Confusing Terms</h4> <p>Even professionals often confuse the term "vapor barrier" with the term "moisture barrier". Here is the difference:</p> <ul> <li><b>Moisture Barrier</b> - Moisture barriers (like Tyvek, for example) are properly installed on the exterior of a frame wall, directly on top of the sheathing, and under the siding. Moisture barriers help prevent water from entering the wall cavity.</p> <li><b>Vapor Barrier</b> - Vapor barriers, typically a polyethylene plastic sheeting, are installed on the <i>inside</i> of a frame wall between the studs and the drywall. Vapor barriers help prevent water vapor from the interior of the house filtering through the wall and condensing on the warm side of the insulation. Wet insulation is a no-no.</ul> <p><a href="http://renovatedsm.com/node/67">read more</a></p> http://renovatedsm.com/node/67#comments Building Systems Green/Eco Sun, 22 Jul 2007 21:00:30 -0700 RenovateDSM 67 at http://renovatedsm.com