Sub-Slab Depressurization
A suction point is opened in the floor slab, a sealed pipe is run from there up through the house (or along an exterior wall) to discharge above the roofline, and an inline fan creates constant negative pressure under the slab so soil gas is pulled out before it can enter the home. Major cracks and the sump (if any) are sealed to help the system work efficiently. The right fan strength and pipe routing depend on your foundation, so the design is matched to your home rather than pulled from a box.
- Sealed suction point cut into the slab
- Vent pipe routed up and out above the roofline
- Quiet, continuously running inline fan
- Sealing of major slab cracks and openings
- Post-install retest to confirm the drop
