Blower Door Test in Berkeley, NJ

How Is A Blower Door Test Conducted?

While performing blower door test in Berkeley, NJ, technicians make sure exterior doors and windows are shut tight and interior doors are open for uniform pressure. A central door to the outside is selected, and an adjustable aluminum frame with a fabric cover is installed there. 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.

When air is drawn out by the fan, outdoor air seeps in through unsealed joints and hidden cracks. With a nanometer, we record and compare the pressure produced by the fan to the pressure inside the house. The pressure data is turned into air changes per hour (ACH), a measure of how efficiently and tightly the home is sealed in NJ.

What Is A Passing Blower Door Test Score?

In Berkeley, NJ, homes are designed to meet or exceed the 2015 International Energy Conservation Code (IECC) or the latest locally adopted standards. Generally, a blower door test result of 3 air changes per hour or less is considered acceptable, ensuring proper energy performance. Reaching this target in your blower door test in Berkeley, NJ helps maintain lower energy bills and fulfills local code obligations.

Why Do I Need A Blower Door Test?

The State of NJ and its local governments follow the IECC standards, which require blower door test on newly built or remodeled residential dwellings. Our team regularly helps home builders, contractors, and homeowners seeking blower door test in Berkeley, NJ to satisfy energy code standards and close final inspections. 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 gain major advantages from blower door test in Berkeley, NJ. As the fan depressurizes the home, incoming air through leaks becomes easier to detect, revealing problem spots and potential energy-saving improvements. In only a few hours, a blower door test can deliver a long-lasting impact on energy efficiency, comfort, and indoor performance throughout NJ’ changing seasons.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Use a trusted air barrier like Tyvek or Zip Sheathing, ensuring all joints and seams are properly taped and sealed.
• 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.
• Ensure all penetrations between conditioned and unconditioned areas—like attics, basements, and crawl spaces—are tightly sealed.
• Local permitting offices often offer official compliance checklists — review the Philadelphia sample here for reference.
• Local Energy Audits provides on-site leak detection and sealing using advanced thermal imaging tools, caulk, and spray foam./li>
• More than 90% of the time, our team delivers a passing score in less than two hours and completes the necessary permit paperwork.