Blower Door Test in Long Branch, NJ

How Is A Blower Door Test Conducted?

When blower door test in Long Branch, NJ is conducted, every exterior door and window is closed, and interior doors are left open to achieve uniform air movement inside. One primary exterior doorway is used, where a flexible aluminum frame and fabric panel are mounted tightly. Next, a calibrated fan is mounted on the frame to reduce indoor pressure to 50 Pascals — similar to the force of a 20 mph wind on the building.

As the fan expels air, the resulting pressure draws outdoor air in through hidden leaks and unsealed joints. A sensitive device called a nanometer measures how the fan’s pressure relates to the home’s internal air 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?

In Long Branch, NJ, all new homes must comply with the 2015 International Energy Conservation Code (IECC) or more current codes enforced by local jurisdictions. Most areas recognize 3 air changes per hour or less as the target blower door test value to ensure energy efficiency. When your blower door test in Long Branch, NJmeets this requirement, you benefit from reduced energy bills and code compliance.

Why Do I Need A Blower Door Test?

The State of NJ and numerous local municipalities adhere to the IECC (International Energy Conservation Code), which mandates blower door test for all newly built or renovated residential homes. We provide support to home builders, contractors, and homeowners needing blower door test in Long Branch, NJ for meeting energy efficiency standards and finalizing permits. 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 gain major advantages from blower door test in Long Branch, NJ. As the fan depressurizes the home, incoming air through leaks becomes easier to detect, revealing problem spots and potential energy-saving improvements. 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.
• Select a proper air barrier such as Tyvek or Zip Sheathing and ensure every seam is thoroughly taped for airtight sealing.
• Use insulation with the right R-value and confirm it is properly installed throughout the building envelope.
• Seal all penetrations in exterior walls using caulk or spray foam.
• Ensure doors and windows are properly installed, caulked, and weather-sealed.
• Ensure all penetrations between conditioned and unconditioned areas—like attics, basements, and crawl spaces—are tightly sealed.
• Local building departments often supply a detailed checklist to ensure compliance — you can download the Philadelphia example here for guidance.
• Local Energy Audits arrives fully equipped with thermal imaging, caulk, and spray foam to detect and seal leaks in one visit./li>
• More than 90% of the time, we deliver a passing score in under two hours and issue all documents needed for permit approval.