Radon can infiltrate in several places: cracks, in the floor slab or foundation walls, the joint between the floor slab and foundation walls, openings in the floor slab or sumps.

 

Radon control is an important aspect of maintaining indoor air quality, especially in areas where radon levels are known to be high. Radon is a naturally occurring radioactive gas that can accumulate in buildings, particularly in basements and lower levels. Long-term exposure to elevated radon levels can pose serious health risks, including lung cancer.

 

MORE ABOUT OUR PRODUCTS

Under Slab Insulation

 

Under-slab spray foam offers a powerful solution for healthier, more efficient foundations. It blocks radon gas, a major health risk, while also providing superior insulation to reduce energy loss. Its seamless, durable application seals out moisture and soil gases, prevents frost heaving, and strengthens the foundation. This all-in-one solution enhances indoor air quality, comfort, and long-term value, making it a smart investment for any home.

 

fibreglass insulation
 

Benefits of Under Slab Insulation

 

Under-slab spray foam insulation creates a seamless barrier against radon gas, prevents moisture infiltration, resists punctures and compression, improves energy efficiency with high R-value insulation, and reinforces foundation durability for long-lasting performance.

 

 

temperature icon Puncture Resistance

Under-slab Closed-Cell spray foam can be safely walked on without puncturing, unlike polyethylene, which gets easily damaged when walked on, especially over gravel. This eliminates the need for costly and time-consuming repairs of punctures before pouring concrete, ensuring a smooth and efficient installation process.

puzzle icon Seamless

Spray foam expands to fill irregular shapes, cracks, and edges around plumbing or structural elements, creating an airtight seal. Poly sheeting struggles to achieve this, especially around penetrations, leaving potential pathways for radon gas.

shield and checkmark icon Dual Functionality

In addition to radon mitigation, Closed-Cell spray foam provides a R-value of 6 per inch, offering superior thermal insulation. Poly sheeting does not insulate, requiring additional materials to achieve the same energy efficiency.

 

For the past several years, Grand River Insulation has provided our company with quality workmanship.  Jason Plein is a very thorough, conscientious person. Above all, I respect and value his honesty.  He always makes sure that everything is done accurately, from timing to scheduling and meeting code requirements. All of his crews have been very courteous. They pay attention that the job is being done properly and cleaned up afterwards. I would highly recommend Grand River Insulation to anyone.

- Robert Krepstakies, Hans Krepstakies Construction Limited

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