Blower Door Test in Florence township, NJ

Assess your home’s air sealing and energy standards with trusted blower door test in Florence township, 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 calculates the rate of air changes per hour in a property, verifying that proper ventilation keeps air fresh and clean. When a home experiences excessive air changes, the HVAC system must reheat or recool more frequently, increasing energy use and reducing 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 Florence township, NJ helps spot air leaks before they worsen, improving efficiency, comfort, and long-term structural quality.

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How Is A Blower Door Test Conducted?

When blower door test in Florence township, 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 precisely calibrated fan is installed on the frame to reduce the air pressure inside to 50 Pascals, equal to a steady 20 mph wind outdoors.

As the fan expels air, the resulting pressure draws outdoor air in through hidden leaks and unsealed joints. With the help of a nanometer, we determine the pressure difference between the fan’s airflow and the home’s internal conditions. These figures are calculated into air changes per hour (ACH), reflecting how well the home prevents air loss and maintains efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

Homes built in Florence township, NJ are expected to comply with the 2015 International Energy Conservation Code (IECC) or any newer local versions in effect. To meet efficiency standards in most areas, homes should record 3 air changes per hour or less on a blower door test. Satisfying this requirement in your blower door test in Florence township, NJ helps optimize energy use and ensures you meet local building standards.

Why Do I Need A Blower Door Test?

In accordance with the IECC, the State of NJ and various local authorities require blower door test for new or remodeled residential properties. Our professionals frequently support home builders, contractors, and homeowners who need blower door test in Florence township, NJ to comply with energy codes and finalize projects. 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.

There are many benefits of blower door test in Florence township, NJ for homeowners. When the fan lowers indoor pressure, leaks become visible, allowing for easy identification of inefficiencies and energy-saving opportunities. A blower door test usually takes just a few hours but delivers a long-lasting impact on your home’s comfort, performance, and efficiency—particularly during NJ’ hot summers and cool winters.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Choose Tyvek or Zip Sheathing as your air barrier and check that all seams are securely taped to maintain airtightness.
Install correctly rated insulation with the proper R-value and confirm it’s well positioned in every part 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.
Many building departments provide step-by-step compliance guides — you can find the Philadelphia example here.
Local Energy Audits identifies and repairs leaks on-site using thermal imaging tools, caulk, and high-quality spray foam./li>
In most situations—over 90% of the time—we get a passing score within two hours and finalize all required paperwork.

Preparing for a Blower Door Test in Florence township, NJ

Before starting blower door test in Florence township, NJ, we turn off all heating, air conditioning, and exhaust fans in bathrooms and kitchens. We then perform a detailed walkthrough to verify that all exterior windows and doors are tightly shut, including any that lead to spaces beyond the thermal envelope. After all openings are closed, we choose a central exterior door, install the blower door frame and fan, and depressurize the house to 50 Pascals to gauge airflow. After the pressure drops, outdoor air enters through gaps more noticeably, making leaks easier to identify. A thermal imager helps us visualize temperature differences in walls, ceilings, and surfaces that separate conditioned and unconditioned spaces. Our team brings chalk, spray foam, and weatherstripping supplies to every job, enabling us to collaborate with homeowners or contractors to seal visible air leakage areas immediately. We can retest right after sealing to check whether the desired blower door score has been met, ensuring full compliance with Florence township, NJ energy standards.

Blower Door Test for Contractors in Florence township, NJ

For contractors booking blower door test in Florence township, NJ, homes with quality insulation usually require only quick, on-site fixes during testing. By using materials such as chalk and spray foam, our team can fix small air leaks immediately on-site. In over 90% of cases, we reach a passing blower door test score in less than two hours and hand over the documents needed to close the building permit right away.

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Schedule Your blower door test in Florence township, NJ

Count on our team for fast, professional, and certified blower door test in Florence township, NJ with dependable results. 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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