Water Barrier

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Water Barrier - HDPE

Our heavy duty waterproof HDPE material is an ideal solution for limiting subterranean water movement. The HDPE sheet material is typically installed outside, adjacent to the building's foundation and acts as a reliable water barrier for basements and crawl spaces. 

Material Length: 100 foot roll (can be joined)
Material: HDPE
Shipping: UPS

- Can be cut with a standard utility knife or hand saw
- Joins vertically or horizontally with sealant tape
- Made in the USA



Attach to a Foundation Wall (Optional)

To adhere the HDPE water barrier membrane to the a foundation wall consider utilizing the HDPE Vertical Lock Adhesive or alternatively the self-adhering SubSeal Water Barrier product line.




Shipping Transit Times: We Ship Fast!
Most orders ship same day if placed before 12:00 PM EST. Transit times are displayed in business days and are approximate.


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Need a Longer Roll? We offer our barrier in custom roll lengths of 100' increments. Additional production time and shipping costs bay be required. Please contact us to request a custom quote.

Written Quotes: If you would like a written quote for your project please contact us.

Volume Pricing: We offer volume pricing on orders totaling over $5,000. Please call (800) 351-9633 or email support@rhizomebarrier.com for details.



1. Dig a trench a few inches back from the building's foundation and where you plan to install the water barrier. At a minimum the trench should extend 1/2" above the surface. To install dig the trench 1/2” less deep than the depth of the barrier that is to be installed. For example if you are installing a 30” barrier, dig a 29.5” trench. Ideally, allow the barrier to extend 2" above ground in order to prevent any surface water pooling on the surface from flowing over and behind the barrier.

2. Place the water barrier in the trench. If connecting two segments of barrier be sure to overlap the segments by 2 feet, use sealant tape vertically and horizontally to connect the seam. The taped overlap will prevent the ground water from flowing through the joint.


Other Applications:

HDPE water barrier can also be used as a root guard for trees, bamboo and weeds. When used as a root guard, the HDPE sheet effectively prevents the plant's root from spreading throughout the landscape.




  • 5

    Posted by JJ Snow on Dec 17th 2022

    From the day we built our log home the basement leaked. Using this awsome water barrier, rerouting the water we completely stopped the leaks and it has been leak free for 3 years. I highly recommend this product!

  • 5
    just what i expected

    Posted by Don james on Jun 18th 2019

    I am using this to protect my pressure treated wood foundation and look good doing it. This is going to work perfect.