Yes. Radon primarily enters homes from soil gas underneath. By completely sealing a crawlspace from outside air/moisture penetration with impermeable closed-cell spray foam barriers or full encapsulation, this proven passive radon mitigation technique helps reduce concentrations substantially. Active mitigation may still be needed in some cases.
Still have more questions? Contact Advanced Insulation at (720) 990-1332 anytime to discuss your specific Thornton crawl space insulation questions. Our crawlspace experts are happy to provide free estimates and recommendations for your property. Call today!