Blower Door Test in Somerdale, NJ

How Is A Blower Door Test Conducted?

While performing blower door test in Somerdale, NJ, technicians make sure exterior doors and windows are shut tight and interior doors are open for uniform pressure. A main exterior door is selected for setup, with an adjustable aluminum frame and fitted fabric panel placed in position. Technicians use a calibrated fan mounted on the frame to bring the home’s interior to 50 Pascals, approximating a 20 mph wind on the walls.

As the fan operates, it forces outside air to penetrate the home through gaps, leaks, and openings. By employing a nanometer, we measure the variance between the fan’s pressure and the internal home 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?

Homes in Somerdale, NJ are typically required to follow the 2015 International Energy Conservation Code (IECC) or the most recent 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. Passing this threshold during your blower door test in Somerdale, NJ ensures both energy savings and full compliance with local regulations.

Why Do I Need A Blower Door Test?

NJ and local city codes follow the IECC (International Energy Conservation Code), which mandates blower door tests on residential buildings after construction or renovation. We specialize in helping home builders, contractors, and homeowners with blower door test in Somerdale, NJ to achieve energy code compliance and finalize inspections. A duct leakage test requirement applies if ducts or HVAC units are positioned outside the structure’s thermal envelope. Learn more about energy code compliance.

With blower door test in Somerdale, NJ, homeowners can detect where energy is being wasted. As the fan depressurizes the house, leaks are revealed, highlighting areas for sealing and savings. blower door test in Somerdale, NJ provides homeowners with clear insights into energy loss. When the fan creates pressure differences, leaks are exposed, allowing for easy detection and repair. It only takes a few hours to perform a blower door test, but the long-lasting impact on comfort and efficiency is felt through NJ’ hot summers and cool winters.

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.
• Ensure the insulation used meets the proper R-value and is well fitted throughout the structure’s building envelope.
• Seal all penetrations in exterior walls using caulk or spray foam.
• Ensure doors and windows are properly installed, caulked, and weather-sealed.
• Properly seal all connections between conditioned and unconditioned zones, including basements, crawl spaces, and attics.
• Local building authorities commonly offer checklists to verify code compliance — review the Philadelphia example here.
• Our professionals at Local Energy Audits use caulk, spray foam, and thermal imaging to detect and seal leaks on-site for better efficiency./li>
• Over 90% of projects pass within two hours, and we immediately provide the required paperwork to close out the building permit.