Water always finds a way… unless you stop it first!
As demand grows for stronger, longer-lasting waterproofing protection, Polyglass continues to deliver solutions designed to perform across a wide range of applications, from foundations and basements to decks, plazas, and elevated structures.
Protect What’s Below the Surface
Polyglass below-grade waterproofing systems are engineered to help prevent costly water intrusion before it starts. Whether your project requires pre-applied membranes, post-applied systems, or liquid-applied solutions, Polyglass offers reliable protection built for durability and long-term performance.
Solutions Designed for Real-World Conditions
-Pre-applied horizontal & vertical applications
-Foundation walls
-Decks, plazas & elevated decks
-Fully bonded, self-adhered membranes
-Liquid-applied waterproofing accessories
With technologies tailored to varying project needs and specifications, Polyglass systems help create secure, watertight structures designed to stand the test of time.
Why It Matters
Below-grade waterproofing isn’t just another layer; it’s essential protection for the integrity and longevity of the entire structure.
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From Concrete Foundation Walls to elevated decks, Polyglass® Has You Covered
It’s critically important to protect the foundation of a building as it is constantly exposed to water and moisture from the ground and atmosphere. Waterproofing the foundation walls with our below-grade waterproofing membranes and accessories can be the best solution for preventing issues such as water exposure and even structural damage to the building.
By preventing water infiltration and moisture buildup, Polyglass below-grade waterproofing can help to extend the lifespan of a building. Installing a Polyglass membrane is an investment in the long-term health and longevity of your building’s foundation.
Protection From Water Damage
Below-grade waterproofing is a crucial component in protecting a building’s foundation and other ground-level or underground structures from water damage. Water can penetrate through the soil and into the foundation walls, causing a variety of issues such as structural damage, mold growth, deterioration, and other water-related problems.
Without a proper waterproofing system in place, groundwater infiltration, rainwater, and surface water runoff can lead to moisture buildup and even flooding in the basement and below-grade areas (crawl spaces, tunnels, parking garages, and other subterranean spaces) of a building. This can compromise the structural integrity of the building and lead to costly repairs.
By installing Polyglass below-grade waterproofing solutions, building owners and contractors can ensure that their structures are protected from water damage. These systems create a barrier between the soil and the foundation walls, preventing water from seeping into the building. As a result, the membranes can increase the lifespan of the building by preventing water damage and minimizing the need for repairs. This can ultimately save you a lot of money in the long run.
Trust Polyglass for dependable waterproofing solutions that keep structures protected for years to come.



