Blower Door Test in West Cape May borough, NJ

How Is A Blower Door Test Conducted?

For accurate blower door test in West Cape May borough, NJ, technicians close all exterior openings and keep interior doors open to balance airflow throughout the house. One central exterior entry is selected, and an aluminum frame with a flexible fabric panel is installed securely. A calibrated fan is fitted into the frame and depressurizes the home to 50 Pascals, mimicking the pressure caused by a 20 mph wind.

As the fan removes air from inside, exterior air flows in through leaks and gaps in the building envelope. A precise nanometer instrument allows us to compare the pressure generated by the fan to that within the house. These values are expressed as air changes per hour (ACH), a key measure of the home’s airtightness and its energy performance under NJ conditions.

What Is A Passing Blower Door Test Score?

Houses in West Cape May borough, NJ are required to meet the standards of the 2015 International Energy Conservation Code (IECC) or the latest locally adopted version. An acceptable blower door test result in most areas is 3 air changes per hour or less, demonstrating solid energy performance. When your blower door test in West Cape May borough, NJmeets this requirement, you benefit from reduced energy bills and code 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 routinely help home builders, contractors, and homeowners requiring blower door test in West Cape May borough, NJ for energy code compliance and permit closure. You may also need a duct leakage test if your ductwork or HVAC equipment lies outside the home’s thermal envelope. Learn more about energy code compliance.

Performing blower door test in West Cape May borough, NJ allows homeowners to identify and fix leaks. The test makes air infiltration visible, uncovering opportunities to reduce energy loss. It only takes a few hours to perform a blower door test, but the long-lasting impact on comfort and efficiency is felt through NJ’ hot summers and cool winters.

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.
• Install insulation that meets the required R-value and check that it’s evenly and securely placed throughout 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 every transition point between conditioned and unconditioned environments, including attics, crawl spaces, and basements.
• Many building departments provide step-by-step compliance guides — you can find the Philadelphia example here.
• Local Energy Audits uses professional-grade thermal imaging, caulk, and spray foam to locate and close leaks during the visit./li>
• Over 90% of cases result in a passing score within two hours, along with complete permit documentation.