Blower Door Test in West Collingswood Heights, NJ

How Is A Blower Door Test Conducted?

Before blower door test in West Collingswood Heights, NJ, every exterior door and window is closed securely, while interior doors stay open to let air move evenly around the home. 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.

As the fan exhausts indoor air, outside air starts seeping into the home through small leaks and gaps. A precise tool called a nanometer is used to compare the pressure generated by the fan with that inside the home. These measurements yield air changes per hour (ACH), showing how airtight and energy-efficient the property is in NJ.

What Is A Passing Blower Door Test Score?

In West Collingswood Heights, NJ, all new homes must comply with the 2015 International Energy Conservation Code (IECC) or more current codes enforced by local jurisdictions. In most areas, an acceptable blower door test result is 3 air changes per hour or less, confirming that the home achieves optimal energy efficiency. Meeting this benchmark in your blower door test in West Collingswood Heights, NJ reduces ongoing energy costs while ensuring local regulatory compliance.

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 often work with home builders, contractors, and homeowners requiring blower door test in West Collingswood Heights, NJ to meet local energy codes and obtain permit approval. If ducts or HVAC units are located outside the thermal envelope, a duct leakage test may also be mandated. Learn more about energy code compliance.

Homeowners benefit from blower door test in West Collingswood Heights, NJ because depressurization exposes airflow through cracks, helping identify leaks and boost efficiency. A blower door test requires minimal time but makes a long-lasting impact on home comfort and energy performance during NJ’ extreme temperatures.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Use a trusted air barrier like Tyvek or Zip Sheathing, ensuring all joints and seams are properly taped and sealed.
• 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.
• Seal the transitions between conditioned and unconditioned zones, particularly around basements, attics, and crawl spaces.
• Local building departments often supply a detailed checklist to ensure compliance — you can download the Philadelphia example here for guidance.
• With the help of thermal imaging tools, caulk, and spray foam, Local Energy Audits efficiently detects and seals leaks 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.