Blower Door Test in Leonia, NJ

Verify your home’s airtightness and meet energy-efficiency standards with a professional blower door test in Leonia, NJ. Our qualified specialists help homeowners, builders, and contractors locate hidden leaks, improve comfort, and fulfill NJ energy code standards.

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. Excessive air changes can cause problems since each exchange requires reheating or recooling, resulting in greater energy consumption and reduced efficiency. Too frequent air changes can produce drafts and discomfort from leaks, while also increasing the risk of condensation, moisture, and mold. A blower door test in Leonia, NJ assists in finding and sealing air leaks early to improve home comfort, energy efficiency, and overall durability.

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How Is A Blower Door Test Conducted?

In preparation for blower door test in Leonia, NJ, all exterior entry points are sealed, and interior doors are left open to allow consistent air circulation. A single main exterior door is fitted with an adjustable aluminum frame and attached fabric panel to begin the setup. The mounted calibrated fan depressurizes the building to 50 Pascals, a condition similar to the effect of a 20 mph wind.

As the fan removes air from inside, exterior air flows in through leaks and gaps in the building envelope. A precise tool called a nanometer is used to compare the pressure generated by the fan with that inside the home. These values are expressed as air changes per hour (ACH), a key measure of the home’s airtightness and its energy performance under NJ conditions.

What Is A Passing Blower Door Test Score?

Construction in Leonia, NJ must comply with the 2015 International Energy Conservation Code (IECC) or updated versions recognized by local authorities. In most locations, 3 air changes per hour or less is the standard blower door test result for efficient home performance. Satisfying this requirement in your blower door test in Leonia, NJ helps optimize energy use and ensures you meet local building standards.

Why Do I Need A Blower Door Test?

NJ and several of its municipalities comply with the IECC (International Energy Conservation Code), mandating blower door test for new or updated homes. Our experts assist home builders, contractors, and homeowners needing blower door test in Leonia, NJ to ensure compliance with energy codes and complete final permits. In some cases, a duct leakage test is needed if ducts or HVAC systems lie outside the home’s thermal envelope. Learn more about energy code compliance.

Homeowners experience real energy benefits from blower door test in Leonia, NJ. The fan’s depressurization highlights air leaks, helping identify inefficiencies that can be sealed for savings. A blower door test, typically lasting only a few hours, offers a long-lasting impact on your home’s performance, efficiency, and comfort across NJ’ seasons.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Apply an air barrier like Tyvek or Zip Sheathing, making sure all connecting seams are properly taped and sealed.
Use properly rated insulation with the right R-value and ensure consistent coverage throughout 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.
Seal gaps and openings separating conditioned spaces from unconditioned areas, including crawl spaces, basements, and attics.
Many cities provide compliance checklists through their building departments — see the Philadelphia version here.
Local Energy Audits arrives fully equipped with thermal imaging, caulk, and spray foam to detect and seal leaks in one visit./li>
Over 90% of the time, we achieve a passing score in under two hours and provide all required documentation to finalize the building permit.

Preparing for a Blower Door Test in Leonia, NJ

To prepare a home for blower door test in Leonia, NJ, we shut off the HVAC system and disable all exhaust fans. We follow with a quick walkthrough to ensure all exterior doors and windows are fully closed — including those that connect to garages, basements, or any part outside the thermal envelope. After sealing the home, the blower door fan is installed in a central exterior doorway and used to lower pressure to 50 Pascals to measure airflow and leakage effectively. When the home reaches depressurization, outside air seeps in rapidly, helping identify leaks with greater accuracy. Using a thermal imager, we easily locate air leaks by noting temperature differences on walls, ceilings, and other surfaces adjacent to unconditioned spaces. We carry all necessary materials, including chalk, spray foam, and weatherstripping, to collaborate with homeowners or contractors on visible air leakage repairs during testing. After the sealing process, we can promptly retest to confirm if the desired blower door score has been reached, meeting Leonia, NJ energy code requirements.

Blower Door Test for Contractors in Leonia, NJ

Contractors booking blower door test in Leonia, NJ can rest assured that most homes with professional insulation can easily handle small fixes during testing. With chalk and spray foam on hand, our crew can seal small leaks or gaps almost instantly. In over 90% of cases, we reach a passing blower door test score in two hours and issue the required documentation for quick permit closure.

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Schedule Your blower door test in Leonia, NJ

Rely on our expert team for accurate, efficient, and certified blower door test in Leonia, NJ. Whether you’re a homeowner aiming to enhance comfort or a contractor needing to close out a permit, we make sure each test complies with energy codes accurately and efficiently.

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