Blower Door Test in Greenwich township (Gloucester), NJ

How Is A Blower Door Test Conducted?

When performing blower door test in Greenwich township (Gloucester), NJ, the technician ensures all exterior doors and windows are sealed and interior doors are open for steady air movement. Technicians install a fabric panel and adjustable aluminum frame into one central exterior door opening. The technician mounts a calibrated fan to the frame to depressurize the house to 50 Pascals, roughly matching a 20 mph wind effect.

As the fan removes air from inside, exterior air flows in through leaks and gaps in the building envelope. By employing a nanometer, we measure the variance between the fan’s pressure and the internal home pressure. The data collected is translated into air changes per hour (ACH), showing the home’s airtightness and overall energy efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

In Greenwich township (Gloucester), NJ, residential properties must meet the energy efficiency criteria outlined in the 2015 International Energy Conservation Code (IECC) or updated local versions. A result of 3 air changes per hour or less is generally required in most areas to confirm the home’s energy efficiency. Satisfying this requirement in your blower door test in Greenwich township (Gloucester), NJ helps optimize energy use and ensures you meet local building standards.

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 provide support to home builders, contractors, and homeowners needing blower door test in Greenwich township (Gloucester), NJ for meeting energy efficiency standards and finalizing permits. A duct leakage test might be required when HVAC units or ductwork are installed beyond the home’s thermal envelope. Learn more about energy code compliance.

Homeowners benefit from blower door test in Greenwich township (Gloucester), NJ because depressurization exposes airflow through cracks, helping identify leaks and boost efficiency. Though a blower door test lasts just a few hours, it offers a long-lasting impact on your home’s comfort, durability, and performance year-round in NJ.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Use Tyvek or Zip Sheathing as your air barrier and carefully tape all seams to prevent air leakage.
• 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.
• Seal all openings between conditioned and unconditioned areas, including basements, attics, and crawl spaces.
• Many local municipalities issue code compliance checklists — the Philadelphia example is available here.
• Local Energy Audits brings thermal cameras, caulk, and spray foam to locate and seal leaks while performing on-site testing./li>
• Typically, over 90% of the time we record a passing score in two hours and handle all permit-related documentation.