mainecleaners

Your crawl space looks relatively good, but there could be some mold present. Venting crawl spaces often are the culprit for mold - many people don't realize this. Crawl Space Venting Often Causes Condensation, Mold Growth, Poor Indoor Air Quality and Higher Energy Bills. I would have a local expert come take a look to be sure. Good luck!

Where is the mold? Using bleach just masks the problem and the dangerous mold spores are still left behind. It is important to have a proper, balanced, ventilation system using equal amounts of incoming air and outgoing air. For bathroom vent fans it is important to use insulated ducting and to insulate around the vent pipe exiting the fan to prevent moisture from condensing inside of the pipe. If moisture condenses inside the pipe it can eventually lead to costly water damage.