While they may be functionally equivalent, 

craftsmanship and aesthetics differentiate Timmit Radon Systems from all others.

 When only the best will do, 

call Timmit Radon Systems. 

 630-205-3416 or 815-434-3422

Competitively Priced * Free Estimates

Serving  the following Northern Illinois Counties:

Boone, Bureau, DeKalb, DuPage, Grundy, Kane, Kankakee, 

Kendall, LaSalle, Marshall, Ogle, Putnam & Will

Below are photos of dirt or gravel floor crawlspaces that must be covered with an airtight minimum 6-mil plastic membrane when installing a Sub-Membrane Depressurization (SMD) radon mitigation system. Timmit Radon Systems utilizes a 6-mil fire-retardant, cross-laminated, reinforced plastic membrane that is anchored to the crawlspace foundation walls with pressure treated 1" x 4" dimensional lumber. the top edge of the dimensional lumbar is caulked and any overlapping seams are sealed with caulk and plastic membrane duct tape. Perforated pipe is laid beneath the plastic membrane and connected to solid PVC pipe which is then routed and connected to either the radon fan, if a whole house crawlspace foundations is present, or to the basement sub-slab depressurization (SSD) system piping, if the house has a combination foundation.