Blower Door Test in Winslow township, NJ

How Is A Blower Door Test Conducted?

To perform blower door test in Winslow township, NJ, all exterior doors and windows are tightly sealed, while interior doors remain open to promote balanced airflow throughout the home. A central exterior door is picked, where the technician fits an adjustable aluminum frame and fabric panel for airtight testing. Technicians mount a calibrated fan onto the frame to achieve 50 Pascals of depressurization — similar to a constant 20 mph wind acting on the home.

As the fan removes air, outside air naturally flows inside through leaks, joints, and other gaps. By employing a nanometer, we measure the variance between the fan’s pressure and the internal home 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?

In Winslow township, NJ, all new homes must comply with the 2015 International Energy Conservation Code (IECC) or more current codes enforced by local jurisdictions. Typically, blower door test compliance means maintaining 3 air changes per hour or less for energy-efficient performance. Complying with this benchmark during a blower door test in Winslow township, NJ helps cut energy expenses and meet local building regulations.

Why Do I Need A Blower Door Test?

The State of NJ, together with many cities and counties, enforces the IECC (International Energy Conservation Code), which calls for blower door test on new or renovated residential properties. Our team regularly helps home builders, contractors, and homeowners seeking blower door test in Winslow township, NJ to satisfy energy code standards and close final inspections. A duct leakage test could be required when air ducts or HVAC units extend outside the structure’s thermal envelope. Learn more about energy code compliance.

Homeowners experience real energy benefits from blower door test in Winslow township, NJ. The fan’s depressurization highlights air leaks, helping identify inefficiencies that can be sealed for savings. A blower door test usually takes just a few hours but delivers a long-lasting impact on your home’s comfort, performance, and efficiency—particularly during NJ’ hot summers and cool winters.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Install a quality air barrier like Tyvek or Zip Sheathing and confirm that all joints and seams are completely taped.
• Use properly rated insulation with the right R-value and ensure consistent coverage 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 gaps and openings separating conditioned spaces from unconditioned areas, including crawl spaces, basements, and attics.
• Local authorities often publish checklists to confirm compliance — get the Philadelphia example here.
• Using thermal imaging technology along with caulk and spray foam, Local Energy Audits identifies and seals leaks during the inspection./li>
• Over 90% of the time, we achieve a passing score in under two hours and provide all required documentation to finalize the building permit.