Blower Door Test in Little Ferry, NJ

How Is A Blower Door Test Conducted?

To conduct blower door test in Little Ferry, NJ, exterior doors and windows are closed properly, while interior doors remain open to help maintain even air movement. A central exterior door is picked, where the technician fits an adjustable aluminum frame and fabric panel for airtight testing. A calibrated fan is installed onto the frame, creating a pressure difference of 50 Pascals, comparable to a continuous 20 mph wind blowing on the home.

When air is pulled from the home, outside air finds its way in through cracks and unsealed openings. A nanometer is used to detect and compare the pressure created by the fan with the air pressure inside the structure. These readings produce the air changes per hour (ACH) value, indicating both the home’s airtightness and efficiency within the NJ climate.

What Is A Passing Blower Door Test Score?

In Little Ferry, NJ, compliance with the 2015 International Energy Conservation Code (IECC) or subsequent locally adopted versions is typically mandatory for residential properties. In most cases, passing the blower door test means reaching 3 air changes per hour or less, proving efficient home sealing. Complying with this benchmark during a blower door test in Little Ferry, NJ helps cut energy expenses and meet local building regulations.

Why Do I Need A Blower Door Test?

NJ and several of its municipalities comply with the IECC (International Energy Conservation Code), mandating blower door test for new or updated homes. We regularly provide blower door test in Little Ferry, NJ for home builders, contractors, and homeowners working to meet local code requirements and close permits. You might also need a duct leakage test if HVAC systems or ducts are positioned outside the property’s thermal envelope. Learn more about energy code compliance.

Homeowners can greatly benefit from blower door test in Little Ferry, NJ. The depressurization process makes air leaks noticeable, helping pinpoint trouble areas and improve energy efficiency. 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.
• Apply the correct R-value insulation and verify that it’s properly fitted to seal the whole 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.
• Local building departments often supply a detailed checklist to ensure compliance — you can download the Philadelphia example here for guidance.
• Local Energy Audits provides on-site leak detection and sealing using advanced thermal imaging tools, caulk, and spray foam./li>
• Over 90% of our projects pass within two hours, with all required paperwork issued immediately to close the permit.