Blower Door Test in Ewing, NJ

Achieve peak energy efficiency and verify airtight construction with professional blower door test in Ewing, 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 measures the air changes per hour within a home or building. Air exchange is a normal and healthy process that allows stale indoor air to be replaced with fresh air. Too frequent air exchanges lead to energy waste, as every replacement requires reheating or recooling, decreasing your system’s efficiency. When there are too many air leaks, drafts and discomfort can occur, along with moisture problems such as mold and condensation. A blower door test in Ewing, NJ detects air leaks early on, helping builders and homeowners boost efficiency and strengthen overall home comfort.

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How Is A Blower Door Test Conducted?

In preparation for blower door test in Ewing, NJ, all exterior entry points are sealed, and interior doors are left open to allow consistent air circulation. A central exterior door is used as the setup point, where an adjustable aluminum frame and fabric panel are positioned. Technicians mount a calibrated fan onto the frame to achieve 50 Pascals of depressurization — similar to a constant 20 mph wind acting on the home.

As the fan removes air, outside air naturally flows inside through leaks, joints, and other gaps. With the help of a nanometer, we determine the pressure difference between the fan’s airflow and the home’s internal conditions. These readings produce the air changes per hour (ACH) value, indicating both the home’s airtightness and efficiency within the NJ climate.

What Is A Passing Blower Door Test Score?

In Ewing, NJ, homes generally must comply with the requirements of the 2015 International Energy Conservation Code (IECC) or newer editions enforced by local authorities. An acceptable blower door test result in most areas is 3 air changes per hour or less, demonstrating solid energy performance. Complying with this benchmark during a blower door test in Ewing, NJ helps cut energy expenses and meet local building regulations.

Why Do I Need A Blower Door Test?

Following the IECC guidelines, NJ and many local jurisdictions require blower door test on newly built or renovated residential dwellings. We frequently assist home builders, contractors, and homeowners who need blower door test in Ewing, NJ to comply with energy codes and finalize building permits. A duct leakage test requirement applies if ducts or HVAC units are positioned outside the structure’s thermal envelope. Learn more about energy code compliance.

By performing blower door test in Ewing, NJ, homeowners can identify where conditioned air escapes. Depressurization makes leaks visible, uncovering ways to enhance comfort and efficiency. A blower door test may take just a few hours, yet its long-lasting impact can greatly improve your home’s comfort and energy use across NJ’ hot summers and cool winters.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Choose an appropriate air barrier, like Tyvek or Zip Sheathing, and ensure all seams are accurately and securely taped.
Install insulation that meets the required R-value and check that it’s evenly and securely placed 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.
Local construction departments often include compliance guides — you can download the Philadelphia checklist here.
Local Energy Audits brings thermal cameras, caulk, and spray foam to locate and seal leaks while performing on-site testing./li>
Over 90% of projects pass within two hours, and we immediately provide the required paperwork to close out the building permit.

Preparing for a Blower Door Test in Ewing, NJ

Preparation for blower door test in Ewing, NJ includes turning off the air conditioning, heating, and all exhaust fans to ensure accurate results. We proceed with a quick home walkthrough, checking that every exterior door and window is tightly shut — including ones that lead to unfinished or unconditioned spaces outside 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. A thermal imager helps us identify air leakage points by revealing temperature shifts in walls, ceilings, and surfaces adjoining unconditioned areas. 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. After sealing, we perform a follow-up test to determine if the desired blower door score meets the efficiency standards required in Ewing, NJ.

Blower Door Test for Contractors in Ewing, NJ

For contractors coordinating blower door test in Ewing, NJ, most well-insulated properties can quickly take care of small issues during the testing process. Using readily available materials like chalk and spray foam, our team can seal small leaks and gaps on-site in minutes. In more than 90% of cases, we achieve a passing blower door test score within two hours and provide complete documentation to finalize the building permit without delay.

888 213-3975

Schedule Your blower door test in Ewing, NJ

Get accurate, efficient, and certified blower door test in Ewing, NJ performed by our knowledgeable experts. Whether you’re improving your home’s comfort or closing a building permit, our tests are performed with care and meet all energy efficiency codes.

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