Blower Door Test in Logan township, NJ

How Is A Blower Door Test Conducted?

When performing blower door test in Logan township, NJ, the technician ensures all exterior doors and windows are sealed and interior doors are open for steady air movement. A single main exterior door is fitted with an adjustable aluminum frame and attached fabric panel to begin the setup. A calibrated fan is fitted into the frame and depressurizes the home to 50 Pascals, mimicking the pressure caused by a 20 mph wind.

When indoor air is extracted, outdoor air pushes in through every leak and small gap in the building. Using an advanced nanometer, we evaluate the pressure difference between the fan system and the home’s interior environment. The gathered results are converted into air changes per hour (ACH) to determine how well-sealed and efficient the home is in the NJ climate.

What Is A Passing Blower Door Test Score?

In Logan township, NJ, residential buildings must meet the benchmarks set by the 2015 International Energy Conservation Code (IECC) or any newer codes adopted locally. In most jurisdictions, 3 air changes per hour or less is the benchmark for acceptable blower door test results and energy efficiency. Achieving this standard in your blower door test in Logan township, 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. Our company assists home builders, contractors, and homeowners who rely on blower door test in Logan township, NJ to fulfill energy code compliance and finalize construction permits. 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.

There are many benefits of blower door test in Logan township, NJ for homeowners. When the fan lowers indoor pressure, leaks become visible, allowing for easy identification of inefficiencies and energy-saving opportunities. A blower door test may take just a few hours, yet its long-lasting impact can greatly improve your home’s comfort and energy use across NJ’ hot summers and cool winters.

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.
• Ensure the insulation used meets the proper R-value and is well fitted throughout the structure’s 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.
• Local building departments often supply a detailed checklist to ensure compliance — you can download the Philadelphia example here for guidance.
• At Local Energy Audits, we utilize thermal imaging equipment, caulk, and spray foam to identify and fix air leaks during testing./li>
• In most situations—over 90% of the time—we get a passing score within two hours and finalize all required paperwork.