With all the rain that we get in the Portland area, is it normal to have water in your crawl space? Our homes are constantly bombarded by rainfall nearly year round, so is it alright if some of that rain accumulates under your house? The answer is a little subtle because it depends on if that accumulated water becomes “standing water” with no way out. Many crawl spaces have moisture, but standing water is a different story.
Some properties naturally slope to a low point drain and when water comes in, it eventually finds its way out. Other properties have drainage systems in place, like a sump pump, that moves the water off of the property. What it really comes down to is “what happens to the water once it gets down there”? In order for a crawl space to stay healthy, it is important that standing water is not creating a conducive condition for mold or worse, moisture may start to affect the structural integrity of the home. If you have a crawl space that collects water runoff, you simply must have a plan in place to divert it. Here are some things to consider: