Crawl Space Repair - Bulk Water Infiltration

Evidence of bulk water can be identified by silt and sediment on top of the vapor barrier or in low spots where water has collected. Even if puddling isn't present, we can identify where water infiltration and moisture have occurred. We look for staining on the walls and efflorescence. Efflorescence is the white chalky substance you may notice on the surface of a block wall; it tells us that moisture has pulled the minerals in the block to the surface.