Blower Door Test in New Milford, NJ

How Is A Blower Door Test Conducted?

To perform blower door test in New Milford, NJ, all exterior doors and windows are tightly sealed, while interior doors remain open to promote balanced airflow throughout the home. One primary exterior doorway is used, where a flexible aluminum frame and fabric panel are mounted tightly. 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 air is drawn out by the fan, it causes outdoor air to infiltrate through existing leaks and gaps in the structure. A sensitive nanometer helps us measure and compare the pressure created by the fan with the interior air pressure. 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?

In New Milford, NJ, all new homes must comply with the 2015 International Energy Conservation Code (IECC) or more current codes enforced by local jurisdictions. In most cases, passing the blower door test means reaching 3 air changes per hour or less, proving efficient home sealing. Achieving this standard in your blower door test in New Milford, NJ lowers utility bills and guarantees adherence to local code requirements.

Why Do I Need A Blower Door Test?

The State of NJ and its local governments follow the IECC standards, which require blower door test on newly built or remodeled residential dwellings. We regularly provide blower door test in New Milford, 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.

There are many benefits of blower door test in New Milford, NJ for homeowners. When the fan lowers indoor pressure, leaks become visible, allowing for easy identification of inefficiencies and energy-saving opportunities. A blower door test requires minimal time but makes a long-lasting impact on home comfort and energy performance during NJ’ extreme temperatures.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Use an air barrier system such as Tyvek or Zip Sheathing and verify that each seam is properly sealed with tape.
• Place insulation with the accurate R-value and check for proper installation and full coverage in 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 gaps and openings separating conditioned spaces from unconditioned areas, including crawl spaces, basements, and attics.
• Most building departments provide detailed compliance resources — view the Philadelphia checklist example here.
• Local Energy Audits provides on-site leak detection and sealing using advanced thermal imaging tools, caulk, and spray foam./li>
• Over 90% of projects pass within two hours, and we immediately provide the required paperwork to close out the building permit.