Foundation & Under Slab
Protect What Matters Most—From the Ground Up
Your home’s foundation is more than just structural—it’s the barrier that protects your living space from soil gases, moisture, and temperature fluctuations. Insulating beneath the slab with WALLTITE® closed-cell spray foam helps create a healthier, more energy-efficient, and durable home for you and your family.
How WALLTITE® Works Under the Slab
Applied directly to the prepared substrate before the concrete pour, WALLTITE® forms a continuous, fully adhered insulation layer that helps control moisture and air leakage with the added benefit of being a barrier to radon and other soil gases from entering the home.
The result: a dry, comfortable, and healthier basement environment that contributes to overall home efficiency and safety.
Benefits of WALLTITE® for Foundations and Under Slab
- Radon and Soil Gas Protection: Radon is a naturally occurring radioactive gas that can migrate through the soil and accumulate inside enclosed spaces like basements. Long-term exposure to elevated radon levels can pose health risks. WALLTITE® acts as an effective barrier against radon and soil gases, helping to protect your family and maintain safe indoor air quality.
- Moisture Resistance: Thanks to its closed-cell structure, WALLTITE® delivers superior moisture protection by preventing water vapour transmission through the foundation. This minimizes the risk of mold, mildew, and condensation, creating a more durable and comfortable home environment.
- Thermal Efficiency and Comfort: By insulating beneath the slab, WALLTITE® reduces heat loss through the foundation, helping to maintain consistent indoor temperatures. Homeowners experience greater comfort in below-grade living spaces and lower energy bills throughout the year.
- Airtight and Seamless Application: Sprayed in place, WALLTITE® expands to fill surface irregularities and form a continuous, gap-free layer. This seamless installation eliminates pathways for air and gas infiltration, improving overall building envelope performance.
Where to Apply WALLTITE®
- Under concrete slabs for radon and moisture protection
- Basement foundations to improve energy efficiency and comfort
- Below-grade walls for enhanced durability and air tightness
