Blower Door Test in Weymouth, NJ

How Is A Blower Door Test Conducted?

To conduct blower door test in Weymouth, 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. 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 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 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 Weymouth, NJ, new construction typically follows the 2015 International Energy Conservation Code (IECC) or an updated edition implemented by local codes. Generally, a blower door test result of 3 air changes per hour or less is considered acceptable, ensuring proper energy performance. Passing this threshold during your blower door test in Weymouth, NJ ensures both energy savings and full compliance with local regulations.

Why Do I Need A Blower Door Test?

The State of NJ, together with many cities and counties, enforces the IECC (International Energy Conservation Code), which calls for blower door test on new or renovated residential properties. We provide support to home builders, contractors, and homeowners needing blower door test in Weymouth, NJ for meeting energy efficiency standards and finalizing permits. 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.

By performing blower door test in Weymouth, NJ, homeowners can identify where conditioned air escapes. Depressurization makes leaks visible, uncovering ways to enhance comfort and 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.
• Apply an appropriate air barrier, such as Tyvek or Zip Sheathing, making sure every seam is correctly taped for maximum performance.
• Use properly rated insulation with the right R-value and ensure consistent coverage 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 complete sealing of all openings between conditioned rooms and unconditioned areas like basements, attics, and crawl spaces.
• Many local municipalities issue code compliance checklists — the Philadelphia example is available here.
• Local Energy Audits uses thermal imaging tools, caulk, and spray foam to detect and seal leaks directly on-site./li>
• More than 90% of our tests result in a passing score within two hours, along with immediate permit documentation.