The Below Grade Crawl Space 101.2 ....a bowl that fills with water
'below grade crawl space', definition - noun : - when the interior height of the crawl space is lower than the adjacent grade around the house
The ideal construct of a healthy crawl space would have the interior grade of the crawl 2"-3" above the exterior adjacent grade, unfortunately most older homes have subgrade crawl spaces with no room to add sand.
The Below Grade Crawl Space...
The turf around your home thickens over the years, this along with mulching creates a 'below grade crawl space'. A below grade crawl space is where the adjacent ground outside of the crawl is higher than the ground level under the house. During rain bombs these types of crawl spaces will fill up with rain water via 'fluid migration'.
If you install a standard liner in a below grade crawl space the water will sit on top of the plastic ensuring the destruction of your crawl. The water will permeate into the air creating all the conditions that cause 3 billion dollars of damage every year in America. Moisture control in the crawl space begins with a properly installed moisture barrier.
Call HOME MECHANIX today to have your crawl space evaluated by expert professionals. We understand the problem enough to invent a new way!