One of the most well known crawl space vapor barriers in the market is the CleanSpace brand. We would like you to consider the differences and similarities in these two products.
SilverBack 20 Mil-
- Product Weight 110 MSF (Pounds of plastic per 1000 sq ft)
- Made in the USA
- Quality Product
- Manufactured for the crawl space industry
- Free of holes on any layer
- Available to ALL DIY and Pro's
- String Reinforced
- Available Widths are 6.75' and 13'4"
- No microbial added (see GuardianLiner 20 Mil for a product with Antimicrobial)
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CleanSpace 20 Mil-
- Product Weight 83 MSF(Pounds of plastic per 1000 sq ft)
- Made in the USA
- Quality Product
- Manufactured for the crawl space industry
- Free of holes on any layer
- Available to Pro's only
- String Reinforced
- Available Widths are 12' and 24'
- Added Antimicrobial
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The spec sheets below show that the CleanSpace liner is max 20 mil and min 16 mil. These are the measurements on the plastic, 16 mil, and the measurements on the string (nominal), 20 mil. The SilverBack nominal measurement is 26 mil. Why do we call SilverBack a 20 mil then? To us, the only measurement that matters is the thickness of the plastic. We really don't care what the thickness of the string is. Almost all of the other products on the market measure at the string and not at the plastic without the string.
Looking further, you will see that the SilverBack vapor barrier weighs in at 110 MSF vs CleanSpace weight at 83 MSF. MSF stands for 1000 sq ft. So, the SilverBack has 110 pounds of plastic for every 1000 square foot and CleanSpace has only 83 pounds. That's a 27 pound or 32% difference in plastic used to manufacture the product!
