Blower Door Test in Westdeptford township, NJ

How Is A Blower Door Test Conducted?

When performing blower door test in Westdeptford township, NJ, the technician ensures all exterior doors and windows are sealed and interior doors are open for steady air movement. A main exterior door is selected for setup, with an adjustable aluminum frame and fitted fabric panel placed in position. After setup, a calibrated fan is attached to the frame to lower the air pressure inside the house to 50 Pascals, equivalent to a 20 mph wind.

As the fan expels air, the resulting pressure draws outdoor air in through hidden leaks and unsealed joints. Using an advanced nanometer, we evaluate the pressure difference between the fan system and the home’s interior environment. From these readings, the number of air changes per hour (ACH) is determined, revealing the home’s airtightness and performance efficiency in NJ.

What Is A Passing Blower Door Test Score?

In Westdeptford township, NJ, homes are designed to meet or exceed the 2015 International Energy Conservation Code (IECC) or the latest locally adopted standards. A result of 3 air changes per hour or less is generally required in most areas to confirm the home’s energy efficiency. Achieving this standard in your blower door test in Westdeptford township, NJ lowers utility bills and guarantees adherence to local code requirements.

Why Do I Need A Blower Door Test?

Following the IECC guidelines, NJ and many local jurisdictions require blower door test on newly built or renovated residential dwellings. We work closely with home builders, contractors, and homeowners who need blower door test in Westdeptford township, NJ to ensure compliance and successful project completion. A duct leakage test may also be necessary if any ducts or HVAC systems are positioned outside the building’s thermal envelope. Learn more about energy code compliance.

By performing blower door test in Westdeptford township, NJ, homeowners can identify where conditioned air escapes. Depressurization makes leaks visible, uncovering ways to enhance comfort and efficiency. 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.
• Choose Tyvek or Zip Sheathing as your air barrier and check that all seams are securely taped to maintain airtightness.
• 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 all joints and gaps that connect conditioned and unconditioned areas such as basements, attics, and crawl spaces.
• Local code offices often issue compliance checklists — access the Philadelphia example here for reference.
• Our team at Local Energy Audits employs thermal imaging, caulk, and spray foam to locate and repair leaks efficiently on-site./li>
• More than 90% of the time, our team delivers a passing score in less than two hours and completes the necessary permit paperwork.