Blower Door Test in Port Republic city, NJ

How Is A Blower Door Test Conducted?

In blower door test in Port Republic city, NJ, every exterior door and window is shut, while interior doors stay open to allow uniform airflow inside the building. One central exterior entry is selected, and an aluminum frame with a flexible fabric panel is installed securely. A calibrated fan is installed onto the frame, creating a pressure difference of 50 Pascals, comparable to a continuous 20 mph wind blowing on the home.

As the fan extracts air, exterior air begins entering the house through any unsealed spaces or cracks. Using a nanometer, we accurately compare the pressure difference between the fan output and the home’s interior. 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?

Houses in Port Republic city, NJ are required to meet the standards of the 2015 International Energy Conservation Code (IECC) or the latest locally adopted version. In most locations, 3 air changes per hour or less is the standard blower door test result for efficient home performance. When your blower door test in Port Republic city, NJ meets this requirement, you ensure energy efficiency and maintain compliance with building codes.

Why Do I Need A Blower Door Test?

In accordance with the IECC, the State of NJ and various local authorities require blower door test for new or remodeled residential properties. Our company assists home builders, contractors, and homeowners who rely on blower door test in Port Republic city, NJ to fulfill energy code compliance and finalize construction permits. A duct leakage test requirement applies if ducts or HVAC units are positioned outside the structure’s thermal envelope. Learn more about energy code compliance.

Homeowners who choose blower door test in Port Republic city, NJ can easily locate leaks. As the fan depressurizes the home, airflow through gaps becomes apparent, exposing areas needing improvement. It only takes a few hours to perform a blower door test, but the long-lasting impact on comfort and efficiency is felt through NJ’ hot summers and cool winters.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Use a reliable air barrier like Tyvek or Zip Sheathing and make sure all seams are securely taped.
• Apply the correct R-value insulation and verify that it’s properly fitted to seal the whole building envelope.
• 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.
• Building departments in many areas share checklists for verifying compliance — download the Philadelphia version here as a sample.
• Using thermal imaging technology along with caulk and spray foam, Local Energy Audits identifies and seals leaks during the inspection./li>
• Over 90% of the time, we complete testing with a passing score in two hours or less and handle all permit paperwork on-site.