Risinger's video blog generated a flood of comments. We don't have room to include them all, but here's an edited selection of the more salient ones. (The comments keep coming, so be sure to check online for more.)

Sean Donovan: Your test is very interesting and basic, which makes it easily repeatable and verifiable. The best part of Tyvek is how great it is at preventing water (and water vapor) from moving through it. Unfortunately, that's also its greatest weakness.

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