Blower Door Test in Union City, NJ

Maintain compliance with energy codes and reduce energy loss using expert blower door test in Union City, NJ. Our certified technicians support homeowners, builders, and contractors in finding hidden leaks, improving comfort, and ensuring compliance with NJ energy codes.

What Is A Blower Door Test?

A blower door test helps determine the air changes per hour to confirm that your home has sufficient fresh air replacement. Too frequent air replacement can reduce efficiency since every exchange requires your system to use more energy for heating or cooling. Too many air changes can result in drafts and leaks that create discomfort and lead to moisture, mold, and condensation issues. A blower door test in Union City, 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?

In blower door test in Union City, NJ, every exterior door and window is shut, while interior doors stay open to allow uniform airflow inside the building. Technicians install a fabric panel and adjustable aluminum frame into one central exterior door opening. Once the frame is in place, a calibrated fan is used to bring the home’s pressure down to 50 Pascals — about the same as a 20 mph wind on the structure.

When air is drawn out by the fan, outdoor air seeps in through unsealed joints and hidden cracks. With the help of a nanometer, we determine the pressure difference between the fan’s airflow and the home’s internal conditions. These results are transformed into air changes per hour (ACH), an indicator of the home’s airtightness and its efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

In Union City, NJ, residential buildings must meet the benchmarks set by the 2015 International Energy Conservation Code (IECC) or any newer codes adopted locally. Generally, a blower door test result of 3 air changes per hour or less is considered acceptable, ensuring proper energy performance. Reaching the target during your blower door test in Union City, NJ guarantees lower energy consumption and full code compliance.

Why Do I Need A Blower Door Test?

Across NJ, the IECC (International Energy Conservation Code) is adopted by the state and local jurisdictions, requiring blower door test on residential constructions and renovations. Our experts assist home builders, contractors, and homeowners needing blower door test in Union City, NJ to ensure compliance with energy codes and complete final permits. 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 Union City, NJ because depressurization exposes airflow through cracks, helping identify leaks and boost efficiency. Taking only a few hours, a blower door test creates a long-lasting impact by improving comfort, performance, and efficiency in NJhomes.

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.
Place insulation with the accurate R-value and check for proper installation and full coverage in 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 off any access points or gaps between conditioned and unconditioned spaces like attics, crawl spaces, and basements.
Most building departments provide detailed compliance resources — view the Philadelphia checklist example here.
Local Energy Audits is equipped with thermal imaging tools, caulk, and spray foam to find and seal air leaks immediately on-site./li>
In over 90% of tests, we obtain a passing score within two hours and issue all paperwork required for permit closure.

Preparing for a Blower Door Test in Union City, NJ

To prepare a home for blower door test in Union City, NJ, we shut off the HVAC system and disable all exhaust 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 preparation is complete, the blower door fan and frame are installed in a centrally located exterior door. The fan then reduces pressure to 50 Pascals, allowing accurate leakage assessment. After the home is depressurized, incoming outdoor air becomes more intense, making leak points easy to locate. Using a thermal imager, we locate inefficiencies by observing temperature differences in walls, ceilings, and surfaces separating conditioned and unconditioned areas. We’re fully equipped with chalk, spray foam, and weatherstripping to collaborate with homeowners or contractors in correcting visible air leakage issues immediately. After sealing the leaks, we can immediately run another test to verify that the desired blower door score meets the local efficiency standards for homes in Union City, NJ.

Blower Door Test for Contractors in Union City, NJ

Contractors scheduling blower door test in Union City, NJ often see that homes with proper insulation can correct minor air leaks while testing is underway. Using materials like chalk and spray foam, small leaks or gaps can typically be sealed right away during the test. In over 90% of cases, we successfully achieve a passing blower door test score within just two hours and promptly deliver all required documentation to close out the building permit without any delay.

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Schedule Your blower door test in Union City, NJ

Rely on our expert team for accurate, efficient, and certified blower door test in Union City, NJ. Whether you’re a homeowner seeking better efficiency or a contractor finalizing a build, we ensure every test aligns perfectly with energy code standards.

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