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"Shop Poly wrap's premium vapor barriers for crawl spaces and basements. Protect your property from moisture and mold with our top-rated products."
"Heavy-Duty Membranes that work as Hard as You Do."
Moisture control you can trust - for crawlspaces, foundations, roof, sub-slab, & walls
When it comes to protecting a building from moisture, soil gases, and the elements, Poly Wrap™ stands above the competition. Engineered with high-performance polyethylene and backed by rigorous quality control. Poly Wrap™ delivers unmatched durability, vapor resistance, and ease of installation—making it the trusted choice for Architects, Contractors, Engineers, and all who demand the highest results. While other membranes compromise on thickness, adhesion, or long-term reliability, Poly Wrap™ offers consistent, proven performance in every roll.
All Poly Wrap™ products are 100% made in America. Behind the Poly Wrap™ product is Eagle Building Supply, a company built on a foundation of trust, service, and over a decade of building science expertise. Known for their deep inventory, prompt delivery, and expert support, Eagle is more than a supplier—they’re a partner to professionals who expect the best.
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Durable Polyethylene (2-Mil to 20 Mil)
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Geotextiles (20-Mil to 120 Mil)
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UV, puncture, [soil gas] vapor, antistatic, and fire-retardant membranes available, plus specialty Geotextiles and commercial liners
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Commercial, Industrial, and Residential Applications & Product Lines
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Nationwide shipping, 24 - 48 business hours
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Poly Wrap™ 15 - Mil Vapor Barrier (Class A)
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Poly Wrap™ 20 - Mil Vapor Barrier (Class A)
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Poly Wrap™ 10 - Mil Vapor Retarder (Class A)
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Poly Wrap™ 10 - Mil Vapor Retarder (Class C)
Application Guide
What is the difference between a Vapor Barrier and a Vapor Retarder?
According to industry experts, a vapor barrier is defined as having a permeance of 0.01 Perms (grains/ [square feet / hour / inches / Hg]) or less when tested in accordance with ASTM E 1745 Section 7. **
A vapor retarder is classified by ASTM E 1745 Table 1 as a plastic material having a permeance of less than 0.1 perms (grains/ [hour * ft2 * in. Hg]) as tested according to ASTM E 1745 Section 7. **
**Section 7 of ASTM E 1745 specifies the testing conditions and allows for either of the following test methods: ASTM F1249 or ASTM E96.
Though it is true that many people in the construction industry will use these terms synonymously, there is a very big difference between the two. A vapor barrier needs to have a low enough permeance to mimic the permeance of a floor covering. Otherwise, the potential exists for the buildup of relative humidity/dew point within the slab/under the floor covering.
Below Concrete
Brownfield & Special Applications
Vapor Barriers & Gas Retarders
Crawlspace Liners & Encapsulation
America’s Trusted Vapor Barrier & Geotextile Solution
Protect Your Build with Poly Wrap™ When it comes to shielding your project from moisture, soil gases, and environmental exposure, Poly Wrap™ leads the way. Our American-made vapor barriers and geotextile membranes are engineered with high-performance polyethylene to ensure unmatched durability, vapor resistance, and ease of installation. Designed for professionals who demand long-term performance, Poly Wrap™ is trusted by architects, contractors, and engineers nationwide.
Engineered for Superior Moisture & Vapor Protection Poly Wrap™ products are crafted with rigorous quality control to outperform traditional membranes. Where others compromise on thickness, adhesion, or longevity, Poly Wrap™ delivers consistent, proven performance in every roll.
Product Options for Every Application:
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Polyethylene Membranes: 2-Mil to 20-Mil
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Geotextile Membranes: 20-Mil to 120-Mil
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Specialty Options: UV-resistant, puncture-resistant, soil gas vapor, antistatic, and fire-retardant membranes
Built for Commercial, Industrial & Residential Projects From foundational moisture protection to large-scale commercial liners, Poly Wrap™ has a product tailored for every environment. Our membranes are designed for ease of use and long-term resilience in even the harshest conditions.
Why Choose Poly Wrap™?
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100% Made in the USA
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Backed by Eagle Building Supply – Over a decade of building science expertise
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Deep inventory and fast nationwide shipping (24–48 business hours)
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Expert support from professionals who understand your needs
Work with a Partner, Not Just a Supplier Poly Wrap™ is more than a product. It’s a solution backed by Eagle Building Supply, a company built on trust, service, and industry knowledge. We don't just deliver rolls—we deliver results.
Get Started Today Ready to elevate your next build with a reliable, high-performance vapor barrier? Contact us today to learn more or place your order. Fast, reliable shipping across the U.S. starts here.
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