Blower Door Test in Chatham township, NJ

How Is A Blower Door Test Conducted?

When performing blower door test in Chatham township, NJ, the technician ensures all exterior doors and windows are sealed and interior doors are open for steady air movement. One primary exterior doorway is used, where a flexible aluminum frame and fabric panel are mounted tightly. A calibrated fan is placed within the frame and operated to depressurize the structure to 50 Pascals — nearly the same as a 20 mph wind hitting the building.

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 figures are calculated into air changes per hour (ACH), reflecting how well the home prevents air loss and maintains efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

In Chatham township, NJ, new construction typically follows the 2015 International Energy Conservation Code (IECC) or an updated edition implemented by local codes. In most locations, 3 air changes per hour or less is the standard blower door test result for efficient home performance. Satisfying this requirement in your blower door test in Chatham township, NJ helps optimize energy use and ensures you meet local building standards.

Why Do I Need A Blower Door Test?

Both NJ and local jurisdictions adopt the IECC energy code, making blower door test mandatory for new and renovated residential structures. We proudly serve home builders, contractors, and homeowners who need blower door test in Chatham township, NJ to pass inspections and fulfill energy code obligations. A duct leakage test might be necessary if your home’s HVAC units or ducts are located outside its thermal envelope. Learn more about energy code compliance.

Through blower door test in Chatham township, NJ, homeowners can easily find leaks. When the fan reduces internal pressure, air movement through problem areas becomes noticeable, offering chances to save energy. 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 materials like Tyvek or Zip Sheathing as your air barrier and ensure every seam is well taped for best results.
• 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 all openings between conditioned and unconditioned areas, including basements, attics, and crawl spaces.
• Many cities provide compliance checklists through their building departments — see the Philadelphia version here.
• Our team at Local Energy Audits employs thermal imaging, caulk, and spray foam to locate and repair leaks efficiently on-site./li>
• We achieve a passing score within two hours in over 90% of cases and promptly issue the documents to finalize your permit.