Blower Door Test in West Windsor, NJ

How Is A Blower Door Test Conducted?

For blower door test in West Windsor, NJ, all outside doors and windows are closed properly, and inside doors are kept open to balance air pressure throughout the space. A central door to the outside is selected, and an adjustable aluminum frame with a fabric cover is installed there. Once the frame is in place, a calibrated fan is used to bring the home’s pressure down to 50 Pascals — about the same as a 20 mph wind on the structure.

When the fan pulls air out, outdoor air enters the house through cracks, openings, and unsealed areas. A sensitive nanometer helps us measure and compare the pressure created by the fan with the interior air pressure. These results are transformed into air changes per hour (ACH), an indicator of the home’s airtightness and its efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

In West Windsor, NJ, residential properties must meet the energy efficiency criteria outlined in the 2015 International Energy Conservation Code (IECC) or updated local versions. Generally, a blower door test result of 3 air changes per hour or less is considered acceptable, ensuring proper energy performance. Meeting this benchmark in your blower door test in West Windsor, NJ reduces ongoing energy costs while ensuring local regulatory compliance.

Why Do I Need A Blower Door Test?

The State of NJ and numerous local municipalities adhere to the IECC (International Energy Conservation Code), which mandates blower door test for all newly built or renovated residential homes. We often collaborate with home builders, contractors, and homeowners who require blower door test in West Windsor, NJ to meet energy efficiency standards and close 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 experience real energy benefits from blower door test in West Windsor, NJ. The fan’s depressurization highlights air leaks, helping identify inefficiencies that can be sealed for savings. A blower door test is quick to perform but offers a long-lasting impact on comfort, energy savings, and home efficiency across all NJclimates.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Apply an air barrier like Tyvek or Zip Sheathing, making sure all connecting seams are properly taped and sealed.
• Use insulation of the correct R-value and confirm that it’s tightly installed throughout every section of 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 off any access points or gaps between conditioned and unconditioned spaces like attics, crawl spaces, and basements.
• Local code offices often issue compliance checklists — access the Philadelphia example here for reference.
• Using thermal imaging technology along with caulk and spray foam, Local Energy Audits identifies and seals leaks during the inspection./li>
• Typically, over 90% of the time we record a passing score in two hours and handle all permit-related documentation.