Blower Door Test in Voorhees township, NJ

How Is A Blower Door Test Conducted?

To complete blower door test in Voorhees township, NJ, all exterior openings are sealed, and interior doors are kept open to ensure equal airflow throughout the property. A central exterior door is picked, where the technician fits an adjustable aluminum frame and fabric panel for airtight testing. A calibrated fan is placed within the frame and operated to depressurize the structure to 50 Pascals — nearly the same as a 20 mph wind hitting the building.

As the fan creates negative pressure, outside air infiltrates the home through gaps and small openings. Using a sensitive instrument known as a nanometer, we measure the fan’s pressure against the home’s internal pressure. The data is converted into air changes per hour (ACH), identifying how tightly sealed and energy-efficient the house is in NJ.

What Is A Passing Blower Door Test Score?

Homes throughout Voorhees township, NJ are required to satisfy the 2015 International Energy Conservation Code (IECC) or the most current version enforced by local regulators. To meet efficiency standards in most areas, homes should record 3 air changes per hour or less on a blower door test. Satisfying this requirement in your blower door test in Voorhees township, NJ helps optimize energy use and ensures you meet local building standards.

Why Do I Need A Blower Door Test?

Both NJ and local jurisdictions adopt the IECC energy code, making blower door test mandatory for new and renovated residential structures. We proudly serve home builders, contractors, and homeowners who need blower door test in Voorhees township, NJ to pass inspections and fulfill energy code obligations. If any part of the HVAC system or ductwork sits beyond the building’s thermal envelope, a duct leakage test may be required. Learn more about energy code compliance.

Performing blower door test in Voorhees township, NJ allows homeowners to identify and fix leaks. The test makes air infiltration visible, uncovering opportunities to reduce energy loss. 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 Tyvek or Zip Sheathing as your air barrier and carefully tape all seams to prevent air leakage.
• 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.
• Make sure to seal all separations between conditioned and unconditioned areas, including crawl spaces, basements, and attics.
• Local code departments usually provide a checklist to assist with compliance — see the Philadelphia example here.
• Our professionals at Local Energy Audits use caulk, spray foam, and thermal imaging to detect and seal leaks on-site for better efficiency./li>
• In most situations—over 90% of the time—we get a passing score within two hours and finalize all required paperwork.