Under-Deck Waterproofing in Pleasant Run, OH

In Pleasant Run (ZIP 45240), a house with a basement may carry a radon system: a pipe that draws soil gas from under the floor and a fan that pushes it up the outside wall. Where that pipe runs up the back of the house under a raised deck, it needs planning when the space below is made dry.

Under-deck waterproofing puts a catch layer just under the boards, and often a ceiling beneath that. Both have to pass the radon pipe, which usually runs straight up through the space on its way to the roof.

The pipe has one job: to carry the gas up past the roof edge, well away from windows. Nothing we build may shorten it or close it in. So the drainage and ceiling are cut neatly around it, with a sealed collar where the drainage meets the pipe, so no water can run down its outside into the room. The fan, usually mounted on the pipe, stays in the open where the radon contractor can reach it, with space around it, since the fan needs air and hums a little.

The room gets its dry ceiling, and the radon system works exactly as before. A radon test after the work is a simple way to confirm it, and many households run one every couple of years anyway. The collar looks tidy from below, and it can be painted to match the ceiling or the pipe. If the radon contractor ever needs to work on the pipe, nothing has to come apart. We note the pipe on the drawing so it is never covered by later work. If a radon system is planned but not yet in, we can leave a sleeve in the ceiling for the pipe to pass through later.