Blower Door Test in Morris Plains borough, NJ

How Is A Blower Door Test Conducted?

Before blower door test in Morris Plains borough, NJ, every exterior door and window is closed securely, while interior doors stay open to let air move evenly around the home. One chosen exterior door is equipped with an adjustable aluminum frame and fabric panel for test installation. 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 extracts air, exterior air begins entering the house through any unsealed spaces or cracks. With the help of a nanometer, we determine the pressure difference between the fan’s airflow and the home’s internal conditions. These readings are then converted into the total number of air changes per hour (ACH), revealing how airtight the home is and how well it performs in the NJ climate.

What Is A Passing Blower Door Test Score?

In Morris Plains borough, NJ, new construction typically follows the 2015 International Energy Conservation Code (IECC) or an updated edition implemented by local codes. An acceptable blower door test result in most areas is 3 air changes per hour or less, demonstrating solid energy performance. Reaching this target in your blower door test in Morris Plains borough, NJ helps maintain lower energy bills and fulfills local code obligations.

Why Do I Need A Blower Door Test?

NJ, along with many city governments, enforces the IECC, which requires blower door test for residential projects after construction or renovation. We often collaborate with home builders, contractors, and homeowners who require blower door test in Morris Plains borough, NJ to meet energy efficiency standards and close permits. If ducts or HVAC units are located outside the thermal envelope, a duct leakage test may also be mandated. Learn more about energy code compliance.

With blower door test in Morris Plains borough, NJ, homeowners can pinpoint hidden air leaks. The depressurization process makes them obvious, enabling better sealing and lower energy costs. Although it’s a short process, a blower door test produces a long-lasting impact by improving comfort and lowering energy costs throughout NJ’ climate extremes.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Choose Tyvek or Zip Sheathing as your air barrier and check that all seams are securely taped to maintain airtightness.
• 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.
• Properly seal all connections between conditioned and unconditioned zones, including basements, crawl spaces, and attics.
• Many cities provide compliance checklists through their building departments — see the Philadelphia version here.
• Using thermal imaging technology along with caulk and spray foam, Local Energy Audits identifies and seals leaks during the inspection./li>
• We achieve a passing score within two hours in more than 90% of tests and issue the documents to close the building permit.