Blower Door Test in North Hanover township, NJ

Maintain compliance with energy codes and reduce energy loss using expert blower door test in North Hanover township, NJ. Our certified technicians provide homeowners, builders, and contractors with expert air leak detection, better comfort, and complete NJ energy code compliance.

What Is A Blower Door Test?

A blower door test is conducted to assess air changes per hour inside a home or structure, ensuring the right balance between air leakage and fresh airflow. Having too many air changes can waste energy because each new cycle demands the air be reheated or recooled, cutting overall efficiency. Excessive air changes can also lead to drafts and discomfort caused by air leaks, along with moisture, condensation, and mold problems inside the home. A blower door test in North Hanover township, NJ assists in finding and sealing air leaks early to improve home comfort, energy efficiency, and overall durability.

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How Is A Blower Door Test Conducted?

When performing blower door test in North Hanover township, NJ, the technician ensures all exterior doors and windows are sealed and interior doors are open for steady air movement. A single main exterior door is fitted with an adjustable aluminum frame and attached fabric panel to begin the setup. A calibrated fan is used to depressurize the home through the frame to 50 Pascals, representing the same pressure as a 20 mph wind.

As the fan removes air, outside air naturally flows inside through leaks, joints, and other gaps. With a nanometer, we record and compare the pressure produced by the fan to the pressure inside the house. These results are transformed into air changes per hour (ACH), an indicator of the home’s airtightness and its efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

In North Hanover township, NJ, residential properties must meet the energy efficiency criteria outlined in the 2015 International Energy Conservation Code (IECC) or updated local versions. Typically, blower door test compliance means maintaining 3 air changes per hour or less for energy-efficient performance. Achieving this goal during your blower door test in North Hanover township, NJ promotes energy savings and demonstrates adherence to local building rules.

Why Do I Need A Blower Door Test?

The State of NJ and local municipalities have implemented the IECC code, which mandates blower door test on new and remodeled residential homes. We specialize in helping home builders, contractors, and homeowners with blower door test in North Hanover township, 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.

Homeowners can greatly benefit from blower door test in North Hanover township, NJ. The depressurization process makes air leaks noticeable, helping pinpoint trouble areas and improve energy efficiency. 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.
Use materials like Tyvek or Zip Sheathing as your air barrier and ensure every seam is well taped for best results.
Use insulation featuring the proper R-value and verify complete, gap-free coverage across 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.
Seal all joints and gaps that connect conditioned and unconditioned areas such as basements, attics, and crawl spaces.
Local construction departments often include compliance guides — you can download the Philadelphia checklist here.
Local Energy Audits is equipped with thermal imaging tools, caulk, and spray foam to find and seal air leaks immediately on-site./li>
In most situations—over 90% of the time—we get a passing score within two hours and finalize all required paperwork.

Preparing for a Blower Door Test in North Hanover township, NJ

Preparation for blower door test in North Hanover township, NJ begins with switching off the HVAC system, as well as any bathroom and kitchen exhaust fans. After that, we check the entire home to confirm all exterior doors and windows are tightly secured — even those leading to garages, unfinished basements, or other spaces outside the thermal envelope. Once preparation is complete, the blower door fan and frame are installed in a centrally located exterior door. The fan then reduces pressure to 50 Pascals, allowing accurate leakage assessment. When the home reaches negative pressure, outside air infiltrates through openings, making leaks visible. Using a thermal imager, we detect problem areas by observing temperature variations in walls, ceilings, and other surfaces that connect to unconditioned spaces. We carry chalk, spray foam, and weatherstripping materials, allowing us to work directly with homeowners or contractors to fix visible air leakage issues on-site. We can retest right after sealing to check whether the desired blower door score has been met, ensuring full compliance with North Hanover township, NJ energy standards.

Blower Door Test for Contractors in North Hanover township, NJ

For contractors overseeing blower door test in North Hanover township, NJ, most properly insulated homes can manage small on-site repairs during testing. By applying materials such as chalk and spray foam, small leaks or gaps are often sealed on the spot. In over 90% of cases, we manage to secure a passing blower door test score within just two hours and immediately provide all necessary paperwork to close out the permit process.

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Schedule Your blower door test in North Hanover township, NJ

Rely on our expert team for accurate, efficient, and certified blower door test in North Hanover township, NJ. Whether you’re enhancing comfort at home or wrapping up a construction project, we perform every test with accuracy and full compliance with energy codes.

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