Youtor
Weather Barrier Done Right
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=QrQ-4u5V4GE
www.protradecraft.com | SUBSCRIBE please • This guide to house wrap installation comes from BOWA's Best Practice Guide. See it here: • BOWA's Best Practices Video Series: H... • Weather Barriers done right means weather barriers that go to work on more than just sunny days. • Weather includes moisture, wind, and liquid rain, so it makes sense that a Weather Barrier would aim to stop all of that. • Because it is not always sunny like it is in animation land. • Begin at the bottom of the wall where the house wrap is sealed to the foundation with silicone caulk, to bridge the gaps between wood and concrete. • Anyone who has ever run siding knows that it the house wrap isn’t tight in the corners, it will get sliced with a utility knife, so get it tight or say goodbye to your air barrier. • • Overlap vertical seams 6 to 12 inches. Here, the house wrap is run all the way into the corner and the next piece run out about a foot and a half because there are a couple of wall elevations at the bottom and the installers wanted to get a good overlap. • Tape the seam with contractor tape • Run a bead of caulk along the top of the wall to seal the house wrap. Sometimes its easier to do this after the house wrap has been placed. • Either way, overlap the higher pieces in front of the lower pieces so that water is always directed out of the walls. • And don’t stop at the top of the insulated space — House wrap is the drainage plane on gables too, so it has to cover all wall sheathing. • Its a good idea to tape the seams before going crazy with the cap stapler. • • Because a partially taped-over cap staple can become a water injection system into the tape, which can become a trough for sideways water movement. • So keep the cap staples away from the tape. • The same is true at windows, where there is a lot of flashing tape: • keep the cap staples away from the opening about a foot on each edge to allow plenty of room to splice the window into the wall. • • Another sneaky spot that can turn into a massive air leak is a cantilever. • At a minimum, cover this opening with house wrap, but something rigid is better, like sheathing. • Of course, both sheathing and house wrap is best and that detail is a topic for another video. • • Twitter: @TradeCraftsman | twitter.com/tradecraftsman • Pinterest: @ProTradeCraft | pinterest.com/ProTradeCraft/ • Facebook: / protradecraft • Subscribe to Pro Trade Craft's YouTube channel for regular updates
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