Rated 1.8 out of 5 by 4
Rated 1.0 out of 5.0 by 8thborn Not what I expected
As another civil engineer working in the construction materials industry for the past 13 years, I totally agree that this product in no way is an effective moisture barrier. I made the mistake of tempoarily covering a floor system with it. It did an excellent job of trapping water. I am glad I spent the money on Advantech subflooring. It is not effective on a vertical wall surface either. Even with no seems, water (liquid not vapor) got through. This product may function as intended behind a siding, I assume it passed ICC code requirements somehow,but offers little protection to what is behind it prior to covering it up.
April 1, 2016
Rated 1.0 out of 5.0 by Don It lets water through and then traps it in.
This stuff does exactly the opposite of what it's supposed to do. I'm at the store buying Tyvec now and I have to rip this stuff off. Thanks for nothing.
October 10, 2015
Rated 1.0 out of 5.0 by ELGullitch Absolute Garbage -- the manufacturer missed the point
First off let me qualify this review by telling you that I'm a civil engineer with 25 years of civil and environmental engineering experience - I understand how building systems, vapor barriers, etc. are supposed to work.
This product is plastic burlap sheeting with lots of tiny holes poked in it.
As a result, this product does not block liquid water - any water that reaches the outside face of this wrap will penetrate into the space between the wrap and your sheathing. Once liquid water is present on the inside face of the wrap, it will block the pores and will severely limit the rate that vapor can escape. As a result, this wrap is likely to cause more problems than it solves.
How is Tyvek different? Liquid water can not penetrate Tyvek wrap but water vapor can pass through. As a result, the only liquid water that will be present behind Tyvek wrap is from condensation - which should be minimal with a properly constructed building shell. Any condensation that does form can be released as vapor through the entire surface of the Tyvek.
The manufacturer of this product either doesn't understand the simple principles of this type of vapor barrier or is simply interested in taking your money. I'll give them the benefit of the doubt and assume the former.
What do I suggest? For high quality residential construction - properly installed Tyvek with fully taped seams, covered with siding as soon as possible but only after at least two days of warm, dry weather. For sheds, barns, and anything else -- good old fashioned builders felt (tar paper).
October 19, 2015
Rated 4.0 out of 5.0 by Josel12 House wrap.
Not as good as the tyvek. But I'm putting insulation over the wrap anyway. So it worked out good for me
July 2, 2014