Crawl Space Moisture Control

FAST

Installed professionally by an OnGuard Authorized Dealer

RIGHT

Prioritizes air exchange, energy efficiency and comfort

GUARANTEED

               Qualifies for the OnGuard                Guarantee

Why Your Crawl Space is Musty & Moldy

Dew point is when the air reaches saturation (at a given temperature) and begins forming moisture on surfaces. As condensation from regularly reaching dew point accumulates, the moisture content of the structure itself increases. When moisture content reaches 16% or greater, it naturally supports mold formation and growth. Crawl spaces reach dew point on a consistent basis because they have more moisture drivers than most areas of a structure including but not limited to:

• Mechanical condensation (HVAC system and duct work)
• Ground moisture release
• Moisture exerted from foundation walls,
• Plumbing condensation
• Exposure from the sun (warm where it hits and cold where it does not)
• Decks and porches that trap cooler or warmer air that leads to vents

Moisture Release from the ground, condensation from ductwork and plumbing, moisture intrusion/seepage through foundation walls and humidity that can exist outside the building envelope can exert a high moisture load on the crawl space.

Efflorescence, the migration of minerals like calcium to the surface of concrete, is a visible conducive condition of wicking moisture from the positive side (exterior) to the negative side (interior) of a foundation wall.

OnGuard Moisture Control Systems has a complete solution that solves these issues while prioritizing indoor air quality, energy efficiency and value.

Working with an OnGuard Authorized Dealer means you are hiring a conscientious and experienced professional.  They not only know how to do the work right but they also will educate you on what to expect prior to the job and will give you confidence throughout the work until it is completed.

DRY SURFACES DON’T SUPPORT MOLD GROWTH.

The first step of our Moisture Control System for crawl spaces begins with our moisture/mold resistant coatings. Our unique coatings act like a one-way valve. They don’t let moisture back into the surfaces being protected, but they do let moisture escape. Think of it as a moisture shield for your property!

ClearGuard
Commercial strength mold, water, and contaminant resistant coating for interiors and exteriors. Drys clear to preserve the original look.
MaxGuard
Commercial strength mold, water, and contaminant resistant coating for interiors and exteriors. Drys opaque white for hiding stains.

Guaranteed!  Only an OnGuard Authorized Dealer can bring you the OnGuard Guarantee. You can have peace-of-mind that every year, your property will be inspected as part of your OnGuard Moisture Control System. Your OnGuard Authorized Dealer will maintain the system to keep it working efficiently year ‘round. If any problems arise, it’ll be fixed at no charge to you.

CONTROLLING MOISTURE RELEASE

Crawl spaces generally need a vapor barrier with 100% coverage and overlapping seams. Controlling ground moisture release with a Viper CS 10 MIL is an important part of an Onguard Moisture Control System in the crawl space.

Your OnGuard Authorized Dealer will identify additional or potential contributors to water or moisture issues in your home or commercial property and will specify your moisture control system so that it functions optimally. This could include but is not limited to:

  • Waterproofing and/or Engineering Property Drainage
  • Installing a single or multiple Sump Pumps
  • French Drains
  • Interior Perimeter Drainage
  • Redirecting or Installing Gutters and/or Downspouts

Controlling moisture release with a vapor barrier is an important part of the engineering process. The structure’s original engineering parameters tell us the tolerance a building has for moisture release. For example, a structure built to today’s standards using modern materials requires 100% vapor barrier coverage. By contrast, some older construction supports a “stack effect” allowing moisture to release vertically through the floor system, living space, attic and roofing requiring less vapor barrier coverage.

VIPER CS VALUE

At 1/3 the weight, Viper CS 10 MIL is as strong as 20 MIL SKRIM but has nearly twice the puncture resistance. Conversely, 20 MIL SKRIM is five times more vapor permeable than Viper CS 10 MIL. Performance and value is why we choose Viper CS for OnGuard Moisture Control Systems.

Dew Point Controlled Ventilation is an Answer.
We sometimes set up our Smart System of dew point controlled ventilation. 24 hours per day, the Smart System compares the air outside and inside the space. When the outside air is drier, it brings in the fresh, dry air and pushes out the moisture, stale air it’s replacing.

However, when the air outside is more moist than the inside air, the system remains off. OnGuard coatings and the Smart System are the perfect system with built-in redundancies that prioritize fresh air, low energy consumption while solving your moisture issues

Dehumidification is an Answer.

Sometimes Dew Point Controlled Ventilation is an ideal solution but when it isn’t, Mechanically Conditioning your crawl space is a very good option. In addition to completely sealing your crawl space with Viper CS 10 MIL, your OnGuard Authorized Dealer will size and install a professional Seaira Global dehumidifier. The Seaira unit will assist your sealed system to both control structural moisture content while improving the comfort of your home.

WatchDog NXT60

WatchDog NXT85

WatchDog NXT85C

WatchDog NXT Dehumidifiers
  • 5 Year Warranty
  • Auto Restart
  • Built in Humidistat
  • Side Access Panel
  • Compact Design
  • Quiet Operation
  • Auto Defrost
  • Low Operating Temp
  • Digital Display
  • Powerful CFM
Air Sealing, Vapor Barrier and Insulation. Comfort in One Step.

Running our Viper CS 10 MIL vapor barrier up a foundation wall and securing it is an option, but sometimes, the best option is to air seal, insulate and provide a vapor barrier in one step. OnGuard Authorized Dealers are trained and certified to install both our 1-Part and 2-Part insulation and sealing systems. The net result is a more comfortable and efficient home that pays your back in energy efficiency.

HIRE THE RIGHT CONTRACTOR.

WORKING WITH AN ONGUARD AUTHORIZED DEALER MEANS HIRING A CONSCIENTIOUS AND EXPERIENCED PROFESSIONAL WHO NOT ONLY KNOWS HOW TO DO THE WORK RIGHT BUT WHO ALSO EDUCATES AND PREPARES YOU ON WHAT TO EXPECT PRIOR TO THE JOB AND WHO GIVES YOU CONFIDENCE THROUGHOUT THE JOB AND UNTIL IT’S COMPLETED.