Blower Door Test in Fair Lawn, NJ

Make sure your home meets airtightness and efficiency goals with certified blower door test in Fair Lawn, NJ. Our certified technicians provide homeowners, builders, and contractors with expert air leak detection, better comfort, and complete NJ energy code compliance.

What Is A Blower Door Test?

A blower door test provides accurate data on air changes per hour, showing how efficiently fresh air circulates through your space. When the air changes too often, energy efficiency drops since the system must continuously reheat or recool the air inside. Too much air movement from leaks can cause uncomfortable drafts, moisture accumulation, and mold or condensation issues indoors. A blower door test in Fair Lawn, NJ helps homeowners and builders find and fix leaks promptly, boosting energy efficiency and indoor comfort for years to come.

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How Is A Blower Door Test Conducted?

When blower door test in Fair Lawn, NJ is conducted, every exterior door and window is closed, and interior doors are left open to achieve uniform air movement inside. A central exterior door is used as the setup point, where an adjustable aluminum frame and fabric panel are positioned. A calibrated fan is used to depressurize the home through the frame to 50 Pascals, representing the same pressure as a 20 mph wind.

When the fan depressurizes the home, outdoor air seeps in through leaks, crevices, and other air pathways. With a nanometer, we record and compare the pressure produced by the fan to the pressure inside the house. Measurements are expressed as air changes per hour (ACH), showing how effectively the home retains conditioned air in the NJ environment.

What Is A Passing Blower Door Test Score?

Properties in Fair Lawn, NJ must meet the efficiency guidelines of the 2015 International Energy Conservation Code (IECC) or the latest version adopted locally. To meet efficiency standards in most areas, homes should record 3 air changes per hour or less on a blower door test. Passing this threshold during your blower door test in Fair Lawn, NJ ensures both energy savings and full compliance with local regulations.

Why Do I Need A Blower Door Test?

In NJ, both state and local jurisdictions follow the IECC (International Energy Conservation Code), requiring blower door test for new and remodeled homes. Our team frequently assists home builders, contractors, and homeowners performing blower door test in Fair Lawn, NJ to verify compliance and secure permit approval. If any part of the HVAC system or ductwork sits beyond the building’s thermal envelope, a duct leakage test may be required. Learn more about energy code compliance.

Homeowners benefit from blower door test in Fair Lawn, NJ because depressurization exposes airflow through cracks, helping identify leaks and boost efficiency. A blower door test requires minimal time but makes a long-lasting impact on home comfort and energy performance during NJ’ extreme temperatures.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Install a quality air barrier like Tyvek or Zip Sheathing and confirm that all joints and seams are completely taped.
Apply insulation of the correct R-value and make sure it fits snugly in all areas of the building envelope.
Seal all penetrations in exterior walls using caulk or spray foam.
Ensure doors and windows are properly installed, caulked, and weather-sealed.
Ensure all penetrations between conditioned and unconditioned areas—like attics, basements, and crawl spaces—are tightly sealed.
Local code offices often issue compliance checklists — access the Philadelphia example here for reference.
Using thermal imaging technology along with caulk and spray foam, Local Energy Audits identifies and seals leaks during the inspection./li>
More than 90% of the time, our team delivers a passing score in less than two hours and completes the necessary permit paperwork.

Preparing for a Blower Door Test in Fair Lawn, NJ

To get ready for blower door test in Fair Lawn, NJ, our team turns off the HVAC system and shuts down kitchen and bathroom fans. Next, our team walks through the home to verify that every exterior door and window is sealed shut — including access points to unfinished basements, garages, or areas beyond the thermal envelope. Once everything is closed off, we set up the blower door fan on a centrally located exterior door and depressurize the interior to 50 Pascals to assess air leakage accurately. When the house is depressurized, outside air begins entering faster, exposing hidden leaks more effectively. With a thermal imager, we identify cold or warm spots in walls, ceilings, and other surfaces that reveal air leakage into unconditioned spaces. We’re equipped with chalk, spray foam, and weatherstripping materials, so we can partner with homeowners or contractors to repair visible air leakage problems right on-site. After all leaks are sealed, we retest immediately to confirm the desired blower door score has been met and that your home satisfies efficiency requirements in Fair Lawn, NJ.

Blower Door Test for Contractors in Fair Lawn, NJ

For contractors coordinating blower door test in Fair Lawn, NJ, most well-insulated properties can quickly take care of small issues during the testing process. With efficient sealing products such as chalk and spray foam, minor air leaks can often be fixed immediately. In over 90% of cases, our team achieves a passing blower door test score within just two hours and provides the documentation required to close the permit promptly.

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Schedule Your blower door test in Fair Lawn, NJ

Receive professional, accurate, and certified blower door test in Fair Lawn, NJ from our highly skilled technicians. Whether you’re optimizing home comfort or finalizing construction approval, every test we perform adheres to energy code requirements with precision.

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