Commercial Sub-Slab Depressurization Systems

One of the most effective forms of SSD is drain-tile depressurization. Drain-tile depressurization utilizes the corrugated drain-tile beneath the slab to draw airflow through that predesigned pathway. By using that pathway, the sub-slab depressurization is able to cover the entire footprint of the structure with less collection points and fewer fan units. If the property is without drain-tile, Lifetime Environmental Solutions can install drain-tile under the slab through various trenching techniques. New construction properties should strongly consider having drain-tile added before pouring the slab not only for drainage but also for vapor mitigation usage.

In some cases, the soil gases entering a building are not only entering from the slab. Open block walls can cause a stack effect that will draw gasses from the soil up through the blocks and into the structure with relative ease. To combat block wall entry, the tops of the block walls will need to be sealed air tight, and a pipe will need to be added into the wall to draw those gasses out. Block wall depressurization is simply an addition to a typical SSD system to ensure that the entire building is properly covered. Lifetime Environmental Solutions provides block wall depressurization services in addition to traditional SSD services for buildings that need it.