Sub-Slab Applications
One granular layer. Multiple below-slab functions.
Enviro-Rock is a foam glass aggregate used beneath concrete slabs as a free-draining, gas-permeable, and insulating granular layer. With approximately 42% void space and a design thermal value of approximately R-2 per inch, it can contribute to drainage, soil-gas movement, and thermal performance within the sub-slab assembly.
Overview
The granular layer beneath a slab can serve several functions, including drainage, capillary-break performance, thermal resistance, and movement of soil gas toward a collection point where a radon-control system is required.
Enviro-Rock combines these functions within an open foam-glass aggregate layer. Its interconnected void space allows water and soil gas to move through the material, while its thermal resistance can also contribute to the overall below-slab insulation strategy.
Key Uses
- Beneath slab-on-grade construction
- Gas-permeable layers for radon-control assemblies
- Sub-slab drainage and capillary-break layers
- Below-slab thermal insulation
- Basements and below-grade occupied spaces
- Residential and commercial floor assemblies
- Heated slab applications
- Assemblies combining drainage, gas movement, and insulation
Sub-Slab Applications
One granular layer. Multiple below-slab functions.
Enviro-Rock is a foam glass aggregate used beneath concrete slabs as a free-draining, gas-permeable, and insulating granular layer. With approximately 42% void space and a design thermal value of approximately R-2 per inch, it can contribute to drainage, soil-gas movement, and thermal performance within the sub-slab assembly.
Overview
The granular layer beneath a slab can serve several functions, including drainage, capillary-break performance, thermal resistance, and movement of soil gas toward a collection point where a radon-control system is required.
Enviro-Rock combines these functions within an open foam-glass aggregate layer. Its interconnected void space allows water and soil gas to move through the material, while its thermal resistance can also contribute to the overall below-slab insulation strategy.
Key Uses
- Beneath slab-on-grade construction
- Gas-permeable layers for radon-control assemblies
- Sub-slab drainage and capillary-break layers
- Below-slab thermal insulation
- Basements and below-grade occupied spaces
- Residential and commercial floor assemblies
- Heated slab applications
- Assemblies combining drainage, gas movement, and insulation
Key Performance Considerations
Drainage & Permeability
Provides an open, free-draining granular layer beneath slabs for drainage and capillary-break performance.
Radon Gas Pathway
The open void structure provides a pathway for soil gas to move toward a collection and venting system as part of a designed radon-control assembly.
Thermal Insulation
Allows the same granular sub-slab layer to contribute thermal resistance within the below-grade floor assembly.
Key Performance Considerations
Drainage & Permeability
Provides an open, free-draining granular layer beneath slabs for drainage and capillary-break performance.
Radon Gas Pathway
The open void structure provides a pathway for soil gas to move toward a collection and venting system as part of a designed radon-control assembly.
Thermal Insulation
Allows the same granular sub-slab layer to contribute thermal resistance within the below-grade floor assembly.
Bring Enviro-Rock to your project
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