How to solve musty smelling crawlspaces

[rwand1]

http://www.thestar.com/living/article/258506

[Marcel R. Cyr]

That is a fact Raymond;

I would like to reinforce your find with this added information.
Thanks

http://www.basementsystems.com/crawl...entilation.php

Crawl Space Humidity

Whenever the outside air is warmer than the inside air, and especially when the outside air is humid, we are likely to have a condensation problem in our crawl spaces. This is because the Relative Humidity of air goes up 2.2% for every one-degree you cool it. Our crawl spaces are always cool because they are below ground. And we know that a house is like a chimney ? air flows upwards, allowing air to escape the upper levels, with new make-up air being sucked in at the lower levels.

So when it's hot and humid in the summer, rain or not, our basement may be the wettest it has been all year!

Crawl Space Vent Cover
Along with the CleanSpaceencapsulation system, Basement Systems' crawl space vent covers provide a clean and easy way to save money on your energy bills, keep excess moisture out of your crawl space, and create a healthier environment for your family.
By encapsulating the crawl space with the CleanSpace system, we can close our crawlspace vents for good.
CleanSpace Vent Covers go over the old, corroded, unsightly vents for a nice clean looking finish. These crawl space vent covers are durable plastic, so they'll never rust, rot, or need paint. The crawlspace vent covers have a foam insulation and gasket material on the inside to seal off the outside air completely. And they come in three different colors to match your home's foundation.

Mold & Musty Odors

If your basement , crawl space , or entire house smells damp or musty , we have a solution!

Damp, Musty Odors?
Mold and mildew causes this damp, musty smell. These are musty smelling fungi that thrive in moist conditions. Keeping humidity down reduces the chance for mold to grow. In general, mold will not grow at less than 50% relative humidity! Dehumidification is the key. Of course, any groundwater, plumbing or other leaks should be fixed, as part of a strategy to eliminate mold .
Allergens in the Home
Mold spores will certainly irritate someone with allergies. The number one allergen however, is the fecal matter of dust mites. Dust mites don't drink water, but absorb it out of the air through their skin. In order to live, dust mites need relative humidity over 50%. Reducing the relative humidity below 50% will cause dust mites to die off.

Marcel