Blower Door Test in Greenwich township (Gloucester), NJ

How Is A Blower Door Test Conducted?

For blower door test in Greenwich township (Gloucester), NJ, all outside doors and windows are closed properly, and inside doors are kept open to balance air pressure throughout the space. A main exterior door is selected for setup, with an adjustable aluminum frame and fitted fabric panel placed in position. The technician mounts a calibrated fan to the frame to depressurize the house to 50 Pascals, roughly matching a 20 mph wind effect.

When indoor air is extracted, outdoor air pushes in through every leak and small gap in the building. A sensitive nanometer is used to monitor and compare the pressure difference between the blower fan and the home’s interior air. These readings produce the air changes per hour (ACH) value, indicating both the home’s airtightness and efficiency within the NJ climate.

What Is A Passing Blower Door Test Score?

Homes built in Greenwich township (Gloucester), NJ are expected to comply with the 2015 International Energy Conservation Code (IECC) or any newer local versions in effect. In most cases, passing the blower door test means reaching 3 air changes per hour or less, proving efficient home sealing. By meeting this standard in your blower door test in Greenwich township (Gloucester), NJ, you can enjoy lower utility bills and peace of mind with code compliance.

Why Do I Need A Blower Door Test?

NJ state regulations and many municipalities abide by the IECC, enforcing blower door tests for newly constructed or renovated homes. We regularly provide blower door test in Greenwich township (Gloucester), NJ for home builders, contractors, and homeowners working to meet local code requirements and close permits. You might also need a duct leakage test if HVAC systems or ducts are positioned outside the property’s thermal envelope. Learn more about energy code compliance.

Homeowners who choose blower door test in Greenwich township (Gloucester), NJ can easily locate leaks. As the fan depressurizes the home, airflow through gaps becomes apparent, exposing areas needing improvement. 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.
• Use high-quality air barrier materials like Tyvek or Zip Sheathing and confirm all seams are perfectly taped.
• Use insulation featuring the proper R-value and verify complete, gap-free coverage across 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 cracks and openings between conditioned interiors and unconditioned areas such as crawl spaces, attics, and basements.
• Local code departments usually provide a checklist to assist with compliance — see the Philadelphia example here.
• Local Energy Audits identifies and repairs leaks on-site using thermal imaging tools, caulk, and high-quality spray foam./li>
• More than 90% of the time, our team delivers a passing score in less than two hours and completes the necessary permit paperwork.