Here's a close up of the mold and mildew growth in the block wall. Mold, mildew, and other bacteria are nature's decomposition crew. These little creatures are in charge of breaking down whatever they are attached to--and we definitely don't want them digesting your home's foundation walls! That's why it's important to inhibit this sort of growth by reducing relative humidity in the crawlspace, preventing groundwater intrusion, and closing off the crawlspace from outside air. Check out the next picture for more information on how Healthy Spaces' experts can help you and your home!