Blower Door Test in Dunellen, NJ

Achieve peak energy efficiency and verify airtight construction with professional blower door test in Dunellen, NJ. Our trained team assists homeowners, builders, and contractors by detecting hidden air leaks, boosting comfort, and meeting NJ energy regulations.

What Is A Blower Door Test?

A blower door test evaluates air changes per hour, showing how often indoor air is replaced by fresh outdoor air — a process essential for healthy living spaces. Too many air changes can negatively impact efficiency, as every replacement of indoor air demands additional heating or cooling energy. Excessive air changes can bring drafts and air leakage discomfort while promoting moisture buildup, mold, and condensation. A blower door test in Dunellen, NJ helps spot air leaks before they worsen, improving efficiency, comfort, and long-term structural quality.

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How Is A Blower Door Test Conducted?

When conducting blower door test in Dunellen, NJ, technicians close all exterior doors and windows and keep interior doors open for consistent air movement. One chosen exterior door is equipped with an adjustable aluminum frame and fabric panel for test installation. Technicians mount a calibrated fan onto the frame to achieve 50 Pascals of depressurization — similar to a constant 20 mph wind acting on the home.

When indoor air is extracted, outdoor air pushes in through every leak and small gap in the building. A nanometer precisely gauges the pressure applied by the fan in relation to the home’s internal air pressure. The data collected is translated into air changes per hour (ACH), showing the home’s airtightness and overall energy efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

In Dunellen, NJ, all new homes must comply with the 2015 International Energy Conservation Code (IECC) or more current codes enforced by local jurisdictions. A result of 3 air changes per hour or less is generally required in most areas to confirm the home’s energy efficiency. Complying with this benchmark during a blower door test in Dunellen, NJ helps cut energy expenses and meet local building regulations.

Why Do I Need A Blower Door Test?

NJ state regulations and many municipalities abide by the IECC, enforcing blower door tests for newly constructed or renovated homes. We specialize in helping home builders, contractors, and homeowners with blower door test in Dunellen, NJ to achieve energy code compliance and finalize inspections. A duct leakage test could be required when air ducts or HVAC units extend outside the structure’s thermal envelope. Learn more about energy code compliance.

With blower door test in Dunellen, NJ, homeowners can pinpoint hidden air leaks. The depressurization process makes them obvious, enabling better sealing and lower energy costs. A blower door test usually takes just a few hours but delivers a long-lasting impact on your home’s comfort, performance, and efficiency—particularly during NJ’ hot summers and cool winters.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Employ an appropriate air barrier system such as Tyvek or Zip Sheathing and verify that each seam has been correctly 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 gaps and penetrations between conditioned zones and unconditioned sections like attics, basements, and crawl spaces.
Local construction departments often include compliance guides — you can download the Philadelphia checklist here.
With caulk, spray foam, and advanced thermal imaging, Local Energy Audits locates and seals leaks efficiently on-site./li>
More than 90% of the time, our team delivers a passing score in less than two hours and completes the necessary permit paperwork.

Preparing for a Blower Door Test in Dunellen, NJ

Before starting blower door test in Dunellen, NJ, we turn off all heating, air conditioning, and exhaust fans in bathrooms and kitchens. We continue with a walkthrough inspection to confirm every exterior door and window is firmly closed — especially those to unconditioned spaces outside the thermal envelope. Once all openings are sealed, we place the blower door frame and fan in a central exterior door. The fan then lowers the pressure to 50 Pascals for precise leakage measurement. Once pressure is lowered, outdoor air moves in with greater force, highlighting problem areas and leaks. With a thermal imager, we identify cold or warm spots in walls, ceilings, and other surfaces that reveal air leakage into unconditioned spaces. Using chalk, spray foam, and weatherstripping, we assist homeowners and contractors in addressing visible air leakage areas on-site. After the sealing process, we can promptly retest to confirm if the desired blower door score has been reached, meeting Dunellen, NJ energy code requirements.

Blower Door Test for Contractors in Dunellen, NJ

When contractors schedule blower door test in Dunellen, NJ, professionally insulated homes often only need minor adjustments that can be handled during the test. With chalk and spray foam on hand, our crew can seal small leaks or gaps almost instantly. In over 90% of cases, we reach a passing blower door test score in two hours and issue the required documentation for quick permit closure.

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Schedule Your blower door test in Dunellen, NJ

Get dependable, efficient, and certified blower door test in Dunellen, NJ performed by our qualified and experienced experts. Whether you’re focused on comfort improvements or completing compliance checks, we ensure every test meets energy codes with precision and care.

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