Blower Door Test in East Brunswick, NJ

How Is A Blower Door Test Conducted?

To execute blower door test in East Brunswick, NJ, exterior windows and doors are secured shut, while interior doors are left open to distribute air evenly. A single main exterior door is fitted with an adjustable aluminum frame and attached fabric panel to begin the setup. A calibrated fan mounted on the frame reduces the home’s pressure to 50 Pascals, simulating the force of a continuous 20 mph wind.

When the fan starts pulling air out, external air enters through the smallest cracks and leakage points. A sensitive device called a nanometer measures how the fan’s pressure relates to the home’s internal air pressure. These values are expressed as air changes per hour (ACH), a key measure of the home’s airtightness and its energy performance under NJ conditions.

What Is A Passing Blower Door Test Score?

Properties in East Brunswick, NJ must meet the efficiency guidelines of the 2015 International Energy Conservation Code (IECC) or the latest version adopted locally. In most jurisdictions, 3 air changes per hour or less is the benchmark for acceptable blower door test results and energy efficiency. Satisfying this requirement in your blower door test in East Brunswick, NJ helps optimize energy use and ensures you meet local building standards.

Why Do I Need A Blower Door Test?

NJ, along with many city governments, enforces the IECC, which requires blower door test for residential projects after construction or renovation. Our team frequently assists home builders, contractors, and homeowners performing blower door test in East Brunswick, NJ to verify compliance and secure permit approval. 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 East Brunswick, 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.
• Choose Tyvek or Zip Sheathing as your air barrier and check that all seams are securely taped to maintain airtightness.
• 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 cracks and openings between conditioned interiors and unconditioned areas such as crawl spaces, attics, and basements.
• Most building departments provide detailed compliance resources — view the Philadelphia checklist example here.
• Our team at Local Energy Audits employs thermal imaging, caulk, and spray foam to locate and repair leaks efficiently on-site./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.