Blower Door Test in Upper township, NJ

How Is A Blower Door Test Conducted?

To conduct blower door test in Upper township, NJ, exterior doors and windows are closed properly, while interior doors remain open to help maintain even air movement. A central exterior door is picked, where the technician fits an adjustable aluminum frame and fabric panel for airtight testing. A calibrated fan is then attached to the frame and used to depressurize the home to 50 Pascals, which is about the same as a steady 20 mph wind pushing against the structure.

As the fan operates, it forces outside air to penetrate the home through gaps, leaks, and openings. Using a nanometer, we accurately compare the pressure difference between the fan output and the home’s interior. The data is converted into air changes per hour (ACH), identifying how tightly sealed and energy-efficient the house is in NJ.

What Is A Passing Blower Door Test Score?

In Upper township, NJ, homes are designed to meet or exceed the 2015 International Energy Conservation Code (IECC) or the latest locally adopted standards. In most jurisdictions, 3 air changes per hour or less is the benchmark for acceptable blower door test results and energy efficiency. When your blower door test in Upper township, NJ meets this requirement, you ensure energy efficiency and maintain compliance with building codes.

Why Do I Need A Blower Door Test?

In NJ, both state and local jurisdictions follow the IECC (International Energy Conservation Code), requiring blower door test for new and remodeled homes. We often work with home builders, contractors, and homeowners requiring blower door test in Upper township, NJ to meet local energy codes and obtain permit approval. A duct leakage test can be required when ducts or HVAC components are installed outside the structure’s thermal envelope. Learn more about energy code compliance.

By performing blower door test in Upper township, NJ, homeowners can identify where conditioned air escapes. Depressurization makes leaks visible, uncovering ways to enhance comfort and efficiency. Typically completed within a few hours, a blower door test provides a long-lasting impact on comfort, energy efficiency, and overall home performance in NJ’ varied climate.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Apply an appropriate air barrier, such as Tyvek or Zip Sheathing, making sure every seam is correctly taped for maximum performance.
• Use insulation that has the designated R-value and confirm it’s properly applied throughout the building envelope for maximum efficiency.
• Seal all penetrations in exterior walls using caulk or spray foam.
• Ensure doors and windows are properly installed, caulked, and weather-sealed.
• Seal every transition point between conditioned and unconditioned environments, including attics, crawl spaces, and basements.
• Local permitting offices often offer official compliance checklists — review the Philadelphia sample here for reference.
• Local Energy Audits uses professional-grade thermal imaging, caulk, and spray foam to locate and close leaks during the visit./li>
• In the majority of cases—over 90%—we reach a passing score within two hours and provide all closing documentation.