Fully Licensed and Insured call 843.277.5010 Charleston
or call: 904.903.9569 Jacksonville| email: pureairhomes@gmail.com

CRAWLSPACE

Excess moisture, introduced by way of dirt, vented crawlspaces, contributes to wood rot, fungi growth and increased pest activity, including infestation and colonization. Moisture in crawlspaces migrates to the upper levels of the home through a “stack effect”. In essence, whatever air is below the house moves inside the house, mixes with the air conditioning, and carries odors and contributes to poor indoor air quality and uncomfortably high humidity levels.

Moisture Due to Stack Effect Contributes To:

  • High Humidity
  • Pest Infestations
  • Poor Indoor Air Quality
  • Mold Growth
  • Musty Odors
  • Damage to Property
Historical House with a VERY damp Crawlspace
Historical House with a VERY damp Crawlspace

As warm air rises and escapes through the upper levels of the home, new air finds its way into the home to replace what’s been lost. Intake air comes in at the lower levels – through the dirt crawlspace.

Homes that have properly treated and sealed wood, installed permanent crawlspace liner with closed foundation vents, and a professional dehumidifier are protected from both the humid outside air and the ground’s natural moisture. The really big benefit is that this strategy minimizes fungi and mildew growth, guarantying a more structurally sound and healthier home.

 

Building Science Experts Agree About Crawlspaces

Building Science Corporation says that crawlspaces are real simple to understand and deal with.  When you vent crawlspaces you bring in hot, humid air and cause moisture and mold problems.............Moisture moves to the cold surfaces. Venting dirt crawlspaces made sense only when you had no air conditioning and no insulation and no crawlspace walls.

In the picture below, the customer put the house on the market and the person that bought the house explained that he did so because of the condition of the crawlspace.

Older home with Turners Underseal wood treatment & crawlspace liner.
Older home with Turners Underseal wood treatment & crawlspace liner.

This diagram shows the "stack effect".

Air flow always moves from bottom to top.

w-graphic
Small Basement with large Crawlspace from the Historical House
Small Basement with large Crawlspace from the Historical House
Moisture Meter displaying wet contaminated wood
Moisture Meter displaying wet contaminated wood
Before
Before
Installation of Liner
Installation of Liner
Meter showing HIGH moisture in the wood
Meter showing HIGH moisture in the wood
After with installed Commercial Dehumidifier from the Historical House
After with installed Commercial Dehumidifier from the Historical House
After from the Historical House
After from the Historical House
After
After
After Liner
After Liner
 Liner
Liner

HEALTHY
CRAWLSPACES
THE INDOOR
AIR QUALITY PROFESSIONALS

THE PERMANENT
CRAWLSPACE
UNDERFLOOR
WOOD SEALER

crwl-before

BEFORE

crwl-after

AFTER

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For over 30 years we have worked in many aspects of the indoor air quality business.

CONTACT INFO

TURNERS UNDERSEAL

Charleston, SC 29492
PH:   843-277-5010

4495-304 Roosevelt BLVD Suite 186  Jacksonville, Fl. 32210
PH:  904-903-9569

HOURS:
Monday thru Friday | 8:00am to 7:30 pm