Radon Gas is naturally occurring, and moves up out of the ground into a structure through cracks in the foundation or slab. According to Health Canada, Radon Gas is the second leading cause of lung cancer. New building codes require new construction to have a radon mitigation system in place.

Radon Guard™ Insulation is a key component for radon mitigation systems and is the code compliant one-to-one replacement for the code-required 100 mm thick layer of granular material. This 2-in-one system both insulates and protects the health of a structure. Manufactured from PlastiSpan HD insulation, Radon Guard has an R-value of 4.2 (75 degrees) and 4.6 (40 degrees) per inch and compressive strength of 16 psi.

Radon Guard™ insulation is a patent-pending sub-slab depressurization panel. Radon Guard allows for soil gas removal, insulates the concrete slab, and provides a capillary break between the ground and the air barrier system. CCMC Evaluation Report 13698-R confirms that the interconnected channels on the underside of Radon Guard insulation provide the required means to direct soil gas to a radon gas mitigation system.

Available in 3x4 ft, 2 ft high bundles
3 ½, 4, 4 ½ , 5, 5 ½ in. thicknesses
Also available in 25 and 40 psi

Radon Guard™ insulation panels installed under a concrete slab allow for the collection of radon gas within the sub-slab space to that it can then be exhausted through a radon mitigation system rather than entering the building.

Radon Guard™ insulation is the code compliant one-to-one replacement for a 100mm thick layer of granular material, the prescriptive solution required by building codes.

Radon Guard is easy to cut and install

Material Properties of Radon Guard^™

CAN/ULC-S701 Material Properties	Test Method	Units	Property Values
Thermal Resistance Minimum RSI per 25mm (R per inch)	ASTM C518	m² • ⁰C/W (ft²•h•⁰F/BTU)	0.70 (4.04)
Compressive Resistance Minimum @ 10% Deformation	ASTM D1621	kPa (psi)	110 (16)
Flexural Strength Minimum	ASTM C203	kPa (psi)	240 (35)
Water Vapour Permeance Maximum	ASTM E96	ng/(Pa.s.m²) (Perms)	200 (3.5)
Water Absorption Maximum	ASTM D2842	% By Volume	4.0
Dimensional Stability Maximum, 7 Days @ 70 ± 2 ℃ (158 ± 4°F )	D2126	% linear change	1.5
Limiting Oxygen Index Minimum	D2863	%	24

Thermal Resistance for Some Common Thicknesses
Millimeters	RSI	Inches	R-Value
19	0.49	3/4"	2.81
25	0.65	1"	3.75
38	0.98	1 1/2"	5.63
50	1.30	2"	7.50
75	1.95	3"	11.25
Other Standard & Custom thicknesses available upon request. Standard sizes range from; 2x4,2x8,4x4,4x8.