Radon Mitigation Photo Album: Crawlspace Ventilation System in Boise, ID

This ADU unit was built with a crawlspace for the foundation, but no crawlspace entrance. In total, the building was about 50 sq ft. To lower their levels, we proceeded with a ventilation system to draw air out from under the floor. The house contained 4 crawlspace vents, and all were sealed off to help improve the suction zone. We successfully lowered the radon levels in this house.