Old Crawl Space Thinking

Dirt Crawl Spaces with open vents represents old crawl space thinking. New Crawl Space science debunks this old way of thinking. Discover how your Crawl Space is effecting your indoor air quality and your health.

Crawl Space Repair: Crawl Spaces add moisture to the home

Foundation vents were added to allow the ground moisture to escape.

This method of relieving crawlspace moisture caused more problems than it solved.

This method caused cold air to enter in the winter, which in turn caused builders to insulate the floor to keep the cold out.

But the floors remained cold.

Cold floors cause the heating system to work harder, which creates higher heating bills.

The summer causes warm, humid air to enter the crawlspace. The cool crawlspace causes the Relative Humidity to rise dramatically.

Condensation is all over everything, mold grows on the floor joists and rot begins.

Insulation in the floor will become wet and heavy from the moisture. This insulation will fall to the floor from the excessive moisture it absorbs.

The Stack Effect is that air Flows Upward. This brings damp moldy crawl space air upstairs.

Find out about New Crawl Space Thining.