Blower Door Test in Cherry Hill township, NJ

How Is A Blower Door Test Conducted?

While performing blower door test in Cherry Hill township, NJ, technicians make sure exterior doors and windows are shut tight and interior doors are open for uniform pressure. A single main exterior door is fitted with an adjustable aluminum frame and attached fabric panel to begin the setup. 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 air is drawn out by the fan, it causes outdoor air to infiltrate through existing leaks and gaps in the structure. By employing a nanometer, we measure the variance between the fan’s pressure and the internal home pressure. These figures are calculated into air changes per hour (ACH), reflecting how well the home prevents air loss and maintains efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

In Cherry Hill township, NJ, compliance with the 2015 International Energy Conservation Code (IECC) or subsequent locally adopted versions is typically mandatory for residential properties. An efficient home in most regions will achieve 3 air changes per hour or less during a blower door test. Reaching the target during your blower door test in Cherry Hill township, NJ guarantees lower energy consumption and full code compliance.

Why Do I Need A Blower Door Test?

Throughout NJ, the IECC (International Energy Conservation Code) is followed, making blower door test compulsory for new and renovated homes. Our team frequently assists home builders, contractors, and homeowners performing blower door test in Cherry Hill township, NJ to verify compliance and secure permit approval. A duct leakage test may also be performed when ductwork or HVAC equipment extends beyond the thermal envelope. Learn more about energy code compliance.

Through blower door test in Cherry Hill township, NJ, homeowners can easily find leaks. When the fan reduces internal pressure, air movement through problem areas becomes noticeable, offering chances to save energy. 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 high-quality air barrier materials like Tyvek or Zip Sheathing and confirm all seams are perfectly taped.
• Ensure insulation with the specified R-value is properly installed and fitted throughout the entire 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.
• Building departments typically release step-by-step compliance lists — download the Philadelphia sample here as an example.
• Equipped with thermal imaging tools, caulk, and spray foam, Local Energy Audits can find and fix leaks directly at your property./li>
• Typically, over 90% of the time we record a passing score in two hours and handle all permit-related documentation.