High-Quality Vapor Barrier Liner for Moisture Control
At Western Environmental Liner, we manufacture each vapor barrier liner with durability in mind, using reinforced polyethylene designed to withstand high-pressure installation environments. This advanced construction reduces the risk of tearing or puncture during placement beneath slabs or in crawlspaces.

Vapor Barrier
Vapor barriers sometimes known as well as vapor retarders, can be essential in preventing problems such as mold, mildew & fungus that can break down structures over time and can cause serious health related issues as well. A barrier is an essential part of the moisture control strategy for a home or building. The main purpose of a barrier is to prevent the passage of the water vapor that is contained in the air. By minimizing air vapor movement, high-performance vapor retarders like Vapor Stop help maintain long-term building integrity and interior comfort.
Western Environmental Liner’s Vapor Barriers are of the highest quality. Our most popular Vapor Stop series comes in 12 mil & 15 mil Reinforced Polyethylene liners and are both mold & mildew resistant. Thicker material versions are provided upon request but are not necessary for most barrier applications. Vapor Stop is much stronger than the standard vapor barrier being much more difficult to damage during installation due to its strong reinforcement qualities. Vapor Stop allows less vapor transmission than most of the other leading brands, yet is often much more affordable. Professionals across industries choose our vapor barrier liner solutions for high-humidity environments like warehouses, indoor pools, food storage, and data centers.
Western Environmental Liner also has the ability to heat seam Vapor Stop together to allow for less installation work in the field. We can also provide moisture preventing tape to ensure the proper impediment of any vapor transmissions. Custom sizing, quick production timelines, and US-based support make our vapor barrier liner products ideal for commercial and industrial contractors.
Each vapor barrier liner is fabricated to maintain consistent thickness, strength, and moisture resistance across the entire roll. Our production process includes rigorous quality control to meet ASTM standards.
Contractors also rely on Vapor Stop’s chemical resistance when using it under concrete slabs or insulation layers where volatile compounds are present.
All of our vapor barriers meet and exceed ASTM E-1745 Class A, B & C requirements.
Vapor Stop has been used in operations ranging from smaller residential homes to very large underslab construction jobs throughout the world. Please don’t hesitate to contact a 30 + year old vapor barrier liner manufacturer for your vapor barrier liner material needs.