Product Description
Free Shipping to the Lower 48 States
- Non-Toxic & Safe to Handle
- Qty – 1 Roll 6'9" x 50'
- Flow Rate: 18 gal/min/ft
Vapor barrier drainage matting underlayment has water channels created by molding high density polyethylene (HDPE) into sheets featuring aligned dimples. The stud-shaped dimples create space between the vapor barrier and the ground, allowing water to flow quickly and harmlessly away while protecting the crawl space vapor barrier.
• 100% recycled HDPE content used for the base material, environmentally safe and non-toxic
• Linear aligned dimples for a clear open drainage path for bulk water transport
• Membrane can be installed in any climate – is not weather dependent
• Compression strength of sheet meets IRC requirements for lateral earth pressures to 16 ft – 7590psf
Vapor Barrier Underlayment Technical Data:
- Color: Gray
- Material: Recycled High Density Polyethylene
- Dimple Height: .315 (8mm) ASTM D6364-06
- Compressive Strength: 7590 psf ASTM D6364-06
- Flow Rate: 18 gal/min/ft ASTM D4716-08
- Temperature Range: -20°F to 175°F ASTM D5261-92
- Chemical Properties: Excellent chemical resistance
- Toxicity: Non-toxic, nonpolluting
- Weight per unit area: 21.70 oz/yd2² 736 (g/m²) ASTM D5261-92
- Roll length: 50'
- Roll width: 6'9"-34lbs
- Service life expectancy: >30 years (at pH between 4 and 9, and temperature below 77°F / 25°C)
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Product Reviews
6 Reviews Hide Reviews Show Reviews
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Dimple Underlayment
Easy to layout and a joy to have under knees rather than the gravel that was originally there.
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Dimple underlay
Great for wet basement floors
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Wrinkled seam doesn’t lay flat.
The most troublesome aspect of this new product is the flattened overlay seam doesn’t lay flat when installed. I had to make small cuts along that edge to allow the product to lay somewhat flat. This seems to be a different product or a different manufacturing process since last year.
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Dimple Underlayment
I need to order a third roll for a 1000 sq crawl space. Good product over all and easy to put down.
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excellent
fast shipping great price
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Good underlayment
This was super easy to install and it makes working in the crawl space more comfortable. I only put this in the wettest parts of my crawl space and I am glad I did. I put the underlayment down at the same time I got the dehumidifier and it made crawling around more comfortable as I did other projects prior to putting in the vapor barrier.
