A dirt crawl space under a home is a very bad idea. The earth has very high
humidity in the soil. This water vapor moves easily into the crawl space and
upwards into the house environment. This flow also pulls moist outside air into
the crawl space through the foundation vents. This can lead to humidity levels
as high as 100% in your crawl space.
A damp environment is very unhealthy and destructive. Mold thrives and
reproduces by producing airborne spores by the millions. Insects and critters
of all kinds love damp environments and wet materials. Rot and decay occur in
humidity in the soil. This water vapor moves easily into the crawl space and
upwards into the house environment. This flow also pulls moist outside air into
the crawl space through the foundation vents. This can lead to humidity levels
as high as 100% in your crawl space.
A damp environment is very unhealthy and destructive. Mold thrives and
reproduces by producing airborne spores by the millions. Insects and critters
of all kinds love damp environments and wet materials. Rot and decay occur in
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| There are three things that destroy materials in general, and wood in particular: water, heat and ultra—violet radiation. Of these, water is by far the most important. |
| The PHD Sealed Crawl Space System |
The PHD Sealed Crawl Space System completely isolates your home from the earth. This dramatically reduces the
humidity level in the air, which will control the conditions necessary for mold growth, rot and critters in your crawl
space and make your entire house healthier.
humidity level in the air, which will control the conditions necessary for mold growth, rot and critters in your crawl
space and make your entire house healthier.
damp environments causing structural damage. Mold spores, odors, humidity and critters create a very unhealthy
environment for people. Many people are allergic to these things, and experience a host of symptoms and don't
realize that their dirt crawl space is affecting their health. Dirt crawl spaces do not have to be wet or flooded to be
extremely unhealthy. Heating and cooling costs are higher in a home with a vented dirt crawl space.
The natural airflow in a house is from bottom to top. This sucks the moist air and everything in it up into the living
areas of the home. Up to 50% of the air in your home enters through the crawl space.
environment for people. Many people are allergic to these things, and experience a host of symptoms and don't
realize that their dirt crawl space is affecting their health. Dirt crawl spaces do not have to be wet or flooded to be
extremely unhealthy. Heating and cooling costs are higher in a home with a vented dirt crawl space.
The natural airflow in a house is from bottom to top. This sucks the moist air and everything in it up into the living
areas of the home. Up to 50% of the air in your home enters through the crawl space.
Whenever the outside air is warmer than the inside air — and especially when it’s
humid outside air — we can possibly have a condensation problem in our
subterranean levels. This is because the Relative Humidity of air goes up 2.2% for
every one degree you cool it. Crawl spaces are always cool because they are below
ground and typically have ductwork present. And we know that a house is like a
chimney — air flows upwards, allowing air to escape the upper levels, with new air
being sucked in at the lower levels.
So when it’s hot and humid in the summer, rain or not, our crawl space may be
under the most stress it has been all year! Even without condensation, we might still
get high relative humidity levels, which can allow mold to grow and
cause "stinky crawl space syndrome."
humid outside air — we can possibly have a condensation problem in our
subterranean levels. This is because the Relative Humidity of air goes up 2.2% for
every one degree you cool it. Crawl spaces are always cool because they are below
ground and typically have ductwork present. And we know that a house is like a
chimney — air flows upwards, allowing air to escape the upper levels, with new air
being sucked in at the lower levels.
So when it’s hot and humid in the summer, rain or not, our crawl space may be
under the most stress it has been all year! Even without condensation, we might still
get high relative humidity levels, which can allow mold to grow and
cause "stinky crawl space syndrome."
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