Blower Door Test in Northfield, NJ

Achieve peak energy efficiency and verify airtight construction with professional blower door test in Northfield, NJ. Our certified team helps homeowners, builders, and contractors locate air leaks, enhance indoor comfort, and meet all NJ energy efficiency requirements.

What Is A Blower Door Test?

A blower door test measures how many air changes per hour occur in your home, ensuring fresh air circulation and improved indoor air quality. When air changes occur too frequently, the heating or cooling system must work harder to stabilize temperatures, increasing energy use and lowering 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 Northfield, NJ helps spot air leaks before they worsen, improving efficiency, comfort, and long-term structural quality.

888 213-3975

What Our Clients Say

How Is A Blower Door Test Conducted?

For blower door test in Northfield, NJ, all outside doors and windows are closed properly, and inside doors are kept open to balance air pressure throughout the space. One main exterior door is identified, and an adjustable aluminum frame with a fabric panel is securely attached. Technicians use a calibrated fan mounted on the frame to bring the home’s interior to 50 Pascals, approximating a 20 mph wind on the walls.

When air is pulled from the home, outside air finds its way in through cracks and unsealed openings. By employing a nanometer, we measure the variance between the fan’s pressure and the internal home pressure. 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 in Northfield, NJ are typically required to follow the 2015 International Energy Conservation Code (IECC) or the most recent version adopted locally. In most cases, passing the blower door test means reaching 3 air changes per hour or less, proving efficient home sealing. Meeting this level during your blower door test in Northfield, NJ supports energy efficiency and verifies that your home meets local codes.

Why Do I Need A Blower Door Test?

The State of NJ, along with its municipalities, observes the IECC requirements, mandating blower door test for newly constructed or updated homes. Our certified technicians assist home builders, contractors, and homeowners with blower door test in Northfield, NJ to meet energy requirements and wrap up permit approvals. A duct leakage test might be necessary if your home’s HVAC units or ducts are located outside its thermal envelope. Learn more about energy code compliance.

Using blower door test in Northfield, NJ, homeowners can detect unwanted airflow. The depressurization process reveals leaks, helping them seal gaps and increase comfort. A short blower door test can result in a long-lasting impact on your home’s energy efficiency, comfort, and year-round performance in NJ.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Use materials like Tyvek or Zip Sheathing as your air barrier and ensure every seam is well taped for best results.
Ensure insulation with the specified R-value is properly installed and fitted throughout the entire 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 all joints and gaps that connect conditioned and unconditioned areas such as basements, attics, and crawl spaces.
Local jurisdictions frequently publish compliance checklists — the Philadelphia version can be downloaded here.
With caulk, spray foam, and advanced thermal imaging, Local Energy Audits locates and seals leaks efficiently on-site./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 Northfield, NJ

To get ready for blower door test in Northfield, NJ, our team turns off the HVAC system and shuts down kitchen and bathroom fans. Next, we check the home thoroughly to ensure all exterior openings — even those leading to garages or unfinished basements — are securely closed and within 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. After depressurization, air infiltration from outdoors increases, allowing faster and more accurate leak detection. By employing a thermal imager, we detect heat loss by identifying temperature variations in walls, ceilings, and other surfaces leading to unconditioned zones. We’re fully equipped with chalk, spray foam, and weatherstripping to collaborate with homeowners or contractors in correcting visible air leakage issues immediately. We can retest right after sealing to check whether the desired blower door score has been met, ensuring full compliance with Northfield, NJ energy standards.

Blower Door Test for Contractors in Northfield, NJ

Professionally insulated homes tested by contractors during blower door test in Northfield, NJ can often address minor issues right on the spot. By applying materials such as chalk and spray foam, small leaks or gaps are often sealed on the spot. In over 90% of cases, we manage to secure a passing blower door test score within just two hours and immediately provide all necessary paperwork to close out the permit process.

888 213-3975

Schedule Your blower door test in Northfield, NJ

Enjoy fast response, professional service, and certified results with blower door test in Northfield, NJ from our expert team. Whether you’re optimizing home comfort or finalizing construction approval, every test we perform adheres to energy code requirements with precision.

📞 Call 888-213-3975 ✉️ Contact Us