ELITE RADON
Types of Systems
Active Soil Depressurization (ASD) Is recognized by the U.S. Environmental Protection Agency, consumer groups, and scientific organizations as the most effective technique for reducing radon levels in homes and other buildings. This method reduces radon gas entry by reversing the air pressure relationship between the indoors and the radon source (soil). This is done by installing a network of pipe and a radon reduction fan that draws enough air from the soil to be negative in comparison to indoor conditions. EPA has strict protocols when installing a ASD system.
Sub-Membrane Depressurization
Works on the same principle as a Active Soil Depressurization system but is used when a house has a dirt crawl space. A radon reduction barrier is installed over the dirt floor (typically a polyethylene or EPDM membrane material) then a suction is pulled on the barrier to negatively pressurize the soil and the radon gas is safely vented out of the house through a piping system.
The piping on ASD and SMD radon reduction systems can either be routed through the interior or exterior of your home.
Heat Recovery Ventilation System. This system removes the radon gas from your basement and dispenses it safely outdoors and replaces it with radon free outdoor air. This process dilutes high radon levels. HRV is an alternative to a sub-slab ventilation system in less than favorable situations.
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