About Amrad: Insulated Radon Gas Mitigation Panel

Amrad is an insulated under slab depressurization panel and a key component in a radon gas mitigation system. The void created by the integrated channels serve as an air gap for soil gas collection. Radon gas is able to vent out to the exterior through the use of a connected PVC piping with a continuously running exhaust fan. This panelized solution with its unique channel design, void percentage, film and foam density creates a strong and durable panel, giving builders the ability to build an insulated concrete slab while meeting radon building code requirements and improving the indoor air quality for the occupants.

Amrad: Insulated Radon Gas Mitigation Panel
High density insulation
Gas venting channels
Air and vapor barrier film
Capillary break

The channel pattern and ratio of solid to empty allows Amrad to replace 4” (102mm) of clean granular fill as normally required by the building code. In addition, the air gap created by the channels serves as a capillary break between the soil and slab, greatly reducing moisture related issues. Amrad’s High Impact Polystyrene (HIPS) film serves a dual function by providing the required vapor barrier under the concrete slab while acting as an air barrier to prevent any radon gas from infiltrating into the interior space. The Amrad film replaces the need for a dedicated soil gas retarding membrane as required by the building code.

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Amrad

The panels are molded from high density, closed cell, Type 2 (Type II) Expanded Polystyrene (EPS) insulation. They feature large, four-sided interlocking shiplap connector system that makes for a quick, easy and secure installation while maintaining the continuity of the air/vapor barrier and insulation. Due to the unique channel pattern, the panels can be laid side by side in virtually any configuration while allowing proper air movement for continuous venting. During installation, the seams between the panels must be taped with an approved vapor barrier tape. Connections to other wall (or mechanical) components must be sealed with sealants and self-adhering membranes. For optimal performance, the Amrad Adapter should be installed at any of the intersecting lines that are indented on the film.

Product Features

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Compressive Strength20 psi (152 kPa)
Thermal ResistanceR12 (RSI 2.11)
R16 (RSI 2.82)
Vapor Permeance<0.1 US perms (5.4 ng/Pa.s.m2)

The Amvic Difference

Why Use Amrad?

Contractors & Installers

Smaller panels and film lamination decrease damage and installation time.

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Architects & Engineers

Innovative and certified panel design for radon gas mitigation systems.

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Developers

Streamlined installation process while offering superior energy efficiency and durability.

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Homeowners

Consistent and durable high-performance system offering comfort and peace of mind.

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Amrad Panel Benefits

Superior Thermal Insulator

Superior Thermal Insulator

Amrad has exceptional Long-Term R-Value Retention (LTTR) as well as increased thermal resistance in lower temperatures.

Durable, Lightweight, Flexible

Durable, Lightweight, Flexible

Each panel is easy to handle due to the low weight and can be easily cut.

Improved Indoor Air Quality

Improved Indoor Air Quality

Amrad does not contain CFCs or HCFCs, no off-gassing and does not promote growth of mold and mildew.

Increases Comfort and Energy Savings

Increases Comfort and Energy Savings

Acts as continuous insulation in the building envelope, reducing thermal bridging and energy consumption while improving comfort.

Built-In Air and Vapor Barriers

Built-In Air and Vapor Barriers

When the joints are taped and sealed functions as both an air and vapor barrier.

Environmentally Friendly

Environmentally Friendly

EPS foam can be recycled and uses only steam and water during manufacturing.

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Amvic Building System