Purple Mountain Radon Before & After Photos

Before photo of crawlspace. There was less than 12" of clearance from bottom of floor joists to crawlspace floor; a pile of dirt was higher along the access. This dirt pile had to be distributed throughout the crawlspace and smoothed out to allow access. After smoothing out the dirt pile, it created about 15" or so inches of clearance where I was able to literally crawl in and install the membrane.  

There were two crawlspaces in this home we completed earlier this year which were tied into the sub-slab depressurization system of the basement.

This home in Colorado Springs had a new addition built with two crawlspaces and a finished basement.  We joined the two crawlspaces together with the sub-slab depressurization system.    

Quite a bit of headroom in this crawlspace. There were a few footings below grade that had to be sealed, in addition to a hole that was dug to fit an old furnace.