Blower Door Test in Harvey Cedars, NJ

How Is A Blower Door Test Conducted?

In blower door test in Harvey Cedars, NJ, every exterior door and window is shut, while interior doors stay open to allow uniform airflow inside the building. A single central exterior door is designated, where the blower door’s aluminum frame and fabric panel are set up. 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 depressurizes the home, outdoor air seeps in through leaks, crevices, and other air pathways. With the help of a nanometer, we determine the pressure difference between the fan’s airflow and the home’s internal conditions. The test results are converted into air changes per hour (ACH), which determines the airtightness and performance level of the home in NJ weather.

What Is A Passing Blower Door Test Score?

In Harvey Cedars, NJ, homes generally must comply with the requirements of the 2015 International Energy Conservation Code (IECC) or newer editions enforced by local authorities. An acceptable blower door test result in most areas is 3 air changes per hour or less, demonstrating solid energy performance. Achieving this standard in your blower door test in Harvey Cedars, NJ lowers utility bills and guarantees adherence to local code requirements.

Why Do I Need A Blower Door Test?

NJ and local city codes follow the IECC (International Energy Conservation Code), which mandates blower door tests on residential buildings after construction or renovation. We frequently assist home builders, contractors, and homeowners who need blower door test in Harvey Cedars, NJ to comply with energy codes and finalize building 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.

Using blower door test in Harvey Cedars, NJ, homeowners can detect unwanted airflow. The depressurization process reveals leaks, helping them seal gaps and increase comfort. 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.
• Use an air barrier system such as Tyvek or Zip Sheathing and verify that each seam is properly sealed with tape.
• Install insulation of the appropriate R-value and inspect to confirm it’s correctly fitted in all envelope areas.
• Seal all penetrations in exterior walls using caulk or spray foam.
• Ensure doors and windows are properly installed, caulked, and weather-sealed.
• Seal cracks and openings between conditioned interiors and unconditioned areas such as crawl spaces, attics, and basements.
• Local jurisdictions frequently publish compliance checklists — the Philadelphia version can be downloaded here.
• Equipped with thermal imaging tools, caulk, and spray foam, Local Energy Audits can find and fix leaks directly at your property./li>
• Typically, over 90% of the time we record a passing score in two hours and handle all permit-related documentation.