Building out on Vancouver Island, off the west coast of British Columbia, we get our share of heavy wind and rain. So when it comes to installing windows, we can't take shortcuts. The photos in this article were taken on a siding and window replacement job that we did recently and illustrate the steps we follow. We make sure we get these details right - it assures us that we'll be dealing with a happy building inspector and won't get callbacks from the owners when Mother Nature comes pounding on their windows.
Our building code requires two layers of 30-minute building paper, installed half-lapped in shingle fashion over the entire shell. In addition to 30 minutes of water resistance, the paper must also have high enough vapor permeance to allow for drying. I use Hal-Tex 30-minute paper (halind.com) to cover the building and Hal-Tex 60-minute for my...
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