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WhiteCap Premium 20 mil reinforced vapor barrier liner is the strongest and most versatile plastic sheeting that Crawl Spacy DIY stocks. We recommend WhiteCap Premium 20 mil for the most demanding jobs! Consisting of virgin polyethylene, a thick layer of scrim, diamond reinforcement along with U.V. inhibitors and thermal stabilizers. WhiteCap Premium 20 mil is ideal for indoor and outdoor applications. This product is also food-grade safe since the resins used in the food contact layer are FDA 21 CFR 177.1520 (c) 3.2 compliant.
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Does your DIY project call for a heavyweight (16 t0 20 mil) reinforced plastic sheeting with world class durability? Our 20 Mil Reinforced Dura-Skrim Vapor Barrier, both puncture, and tear resistant, has no equal.
Made of two sheets of high strength polyethylene film laminated together with a third layer of molten polyethylene. Inside there is a heavy duty diamond shaped network of scrim (string) for reinforcement which greatly enhances tear resistance and increases service life. The white outer layer contains UV inhibitors and thermal stabilizer and is designed to reduce heat buildup and condensation.
Dura-Skrim 20WW is the first choice for applications requiring greater performance than common 20 mil plastic sheeting.
12′ x 100′ Rolls are ideal for crawl space floors. Â Fewer seams, improved seal, better results.
Jay – December 18, 2025
THIS IS THE BEST VAPOR BARRIER EVER! If you need a quality plastic liner do not hesitate to buy this!
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I received this dehumidifier a few weeks ago for my basement and I can’t be any happier with the product. The best part is that there ... Read Moreis no water tray to be emptied!Read Less
Fast Shipping, I just got it installed yesterday but so far I love being able to control it with my phone. Will buy again from Crawl Space D... Read MoreIYRead Less
The main reason I bought from this company is due to free shipping. I went with this dehumidifier due to the ultra-compact design and it fit... Read Mores perfectly in my low crawl space.Read Less
I couldn’t believe how fast this dehumidifier arrived at my home and it being free shipping was the cherry on top for me. I will be a ... Read Morerepeat customer.Read Less
This liner was great. I needed help installing it and Crawl Space was able to give me some pointers over the phone.
I really like this white drainage matting. Looks great in my crawl space! The price was the best of found for this quality of product.... Read MoreRead Less
Whether you’re looking to encapsulate your crawl space or just install a dehumidifier, Crawl Space DIY offers expert advice and step-by-step instructions to simplify the process and save time and money on your next project.
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