What Are the Signs of Wood Rot in a Crawl Space?

Wood rot in a crawl space is a result of moisture and humidity problems.

The best way to spot early problem signs is to head down into your crawl space and look for visual cues, if you are comfortable. Take a look at the floor joist and see if you spot any discoloration on the wood. White, green, black, and gray stains are all common signs of fungal infection. Some forms of wood rot, like dry rot, will leave a layer of spores along the surface, so any red or green dust particles you see could just be spores. Other forms of wood rot don’t discolor the wood at all and instead create a pattern along the wood that resembles termite damage.