Blower Door Test in Union township, NJ

How Is A Blower Door Test Conducted?

When blower door test in Union township, NJ is conducted, every exterior door and window is closed, and interior doors are left open to achieve uniform air movement inside. A single central exterior door is designated, where the blower door’s aluminum frame and fabric panel are set up. The mounted calibrated fan depressurizes the building to 50 Pascals, a condition similar to the effect of a 20 mph wind.

As the fan expels air, the resulting pressure draws outdoor air in through hidden leaks and unsealed joints. A sensitive device called a nanometer measures how the fan’s pressure relates to the home’s internal air pressure. The pressure data is turned into air changes per hour (ACH), a measure of how efficiently and tightly the home is sealed in NJ.

What Is A Passing Blower Door Test Score?

Homes in Union township, NJ are typically required to follow the 2015 International Energy Conservation Code (IECC) or the most recent version adopted locally. Typically, a passing blower door test result is 3 air changes per hour or lower, which indicates good energy efficiency. Meeting this benchmark in your blower door test in Union township, NJ reduces ongoing energy costs while ensuring local regulatory compliance.

Why Do I Need A Blower Door Test?

Across NJ, the IECC (International Energy Conservation Code) is adopted by the state and local jurisdictions, requiring blower door test on residential constructions and renovations. Our company assists home builders, contractors, and homeowners who rely on blower door test in Union township, NJ to fulfill energy code compliance and finalize construction permits. 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 gain major advantages from blower door test in Union township, NJ. As the fan depressurizes the home, incoming air through leaks becomes easier to detect, revealing problem spots and potential energy-saving improvements. Typically completed within a few hours, a blower door test provides a long-lasting impact on comfort, energy efficiency, and overall home performance in NJ’ varied climate.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Apply an effective air barrier such as Tyvek or Zip Sheathing, ensuring every seam is tightly sealed with proper tape.
• 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.
• Close any gaps connecting conditioned and unconditioned spaces, such as those leading to basements, attics, or crawl spaces.
• Many local municipalities issue code compliance checklists — the Philadelphia example is available here.
• With caulk, spray foam, and advanced thermal imaging, Local Energy Audits locates and seals leaks efficiently on-site./li>
• In most situations—over 90% of the time—we get a passing score within two hours and finalize all required paperwork.