Blower Door Test in West Cape May borough, NJ

How Is A Blower Door Test Conducted?

When blower door test in West Cape May borough, NJ is conducted, every exterior door and window is closed, and interior doors are left open to achieve uniform air movement inside. A main exterior door is selected for setup, with an adjustable aluminum frame and fitted fabric panel placed in position. A calibrated fan is connected to the frame, lowering the home’s internal pressure to 50 Pascals, roughly matching a 20 mph wind force.

As the fan exhausts indoor air, outside air starts seeping into the home through small leaks and gaps. A sensitive nanometer helps us measure and compare the pressure created by the fan with the interior air pressure. Measurements are expressed as air changes per hour (ACH), showing how effectively the home retains conditioned air in the NJ environment.

What Is A Passing Blower Door Test Score?

In West Cape May borough, NJ, compliance with the 2015 International Energy Conservation Code (IECC) or subsequent locally adopted versions is typically mandatory for residential properties. For most regions, achieving 3 air changes per hour or less on a blower door test ensures that the home is properly energy efficient. Achieving this goal during your blower door test in West Cape May borough, NJ promotes energy savings and demonstrates adherence to local building rules.

Why Do I Need A Blower Door Test?

Both NJ and local jurisdictions adopt the IECC energy code, making blower door test mandatory for new and renovated residential structures. Our team frequently assists home builders, contractors, and homeowners performing blower door test in West Cape May borough, NJ to verify compliance and secure permit approval. A duct leakage test is often required whenever ducts or HVAC units are found outside the building’s thermal envelope. Learn more about energy code compliance.

With blower door test in West Cape May borough, 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 West Cape May borough, NJ provides homeowners with clear insights into energy loss. When the fan creates pressure differences, leaks are exposed, allowing for easy detection and repair. This simple test, completed in a few hours, creates a long-lasting impact on your home’s efficiency and comfort during NJ’ hot and cold months.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Use Tyvek or Zip Sheathing as your air barrier and carefully tape all seams to prevent air leakage.
• 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.
• Many cities provide compliance checklists through their building departments — see the Philadelphia version here.
• At Local Energy Audits, we utilize thermal imaging equipment, caulk, and spray foam to identify and fix air leaks during testing./li>
• Typically, over 90% of the time we record a passing score in two hours and handle all permit-related documentation.