Blower Door Test in Evesham township, NJ

Protect your energy investment and verify airtightness with advanced blower door test in Evesham township, 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 provides accurate data on air changes per hour, showing how efficiently fresh air circulates through your space. Frequent air replacement can harm energy performance, as each exchange requires reheating or recooling the air. When too much air is exchanged, it can cause drafts, reduce comfort, and create conditions for moisture buildup and mold. A blower door test in Evesham township, NJ helps discover hidden leaks early so homeowners can save energy, enhance comfort, and improve home resilience.

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How Is A Blower Door Test Conducted?

For blower door test in Evesham township, NJ, all outside doors and windows are closed properly, and inside doors are kept open to balance air pressure throughout the space. 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 nanometer is used to monitor and compare the pressure difference between the blower fan and the home’s interior air. These measurements yield air changes per hour (ACH), showing how airtight and energy-efficient the property is in NJ.

What Is A Passing Blower Door Test Score?

Properties in Evesham township, NJ must meet the efficiency guidelines of the 2015 International Energy Conservation Code (IECC) or the latest version adopted locally. An efficient home in most regions will achieve 3 air changes per hour or less during a blower door test. Meeting this requirement during your blower door test in Evesham township, NJ helps reduce energy costs while keeping your home compliant with local building codes.

Why Do I Need A Blower Door Test?

The State of NJ, along with its municipalities, observes the IECC requirements, mandating blower door test for newly constructed or updated homes. Our experts assist home builders, contractors, and homeowners needing blower door test in Evesham township, NJ to ensure compliance with energy codes and complete final permits. You may also need a duct leakage test if your ductwork or HVAC equipment lies outside the home’s thermal envelope. Learn more about energy code compliance.

Homeowners experience real energy benefits from blower door test in Evesham township, NJ. The fan’s depressurization highlights air leaks, helping identify inefficiencies that can be sealed for savings. A blower door test takes only a short time to complete but can have a lasting effect on your home’s comfort and energy efficiency through NJ’ hot and cool seasons.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Choose Tyvek or Zip Sheathing as your air barrier and check that all seams are securely taped to maintain airtightness.
Install insulation with the appropriate R-value and ensure it is correctly fitted across 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.
Seal cracks and openings between conditioned interiors and unconditioned areas such as crawl spaces, attics, and basements.
Most building departments provide detailed compliance resources — view the Philadelphia checklist example 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, we deliver a passing score in under two hours and issue all documents needed for permit approval.

Preparing for a Blower Door Test in Evesham township, NJ

To get ready for blower door test in Evesham township, NJ, our team turns off the HVAC system and shuts down kitchen and bathroom fans. We then perform a detailed walkthrough to verify that all exterior windows and doors are tightly shut, including any that lead to spaces beyond the thermal envelope. With all openings sealed, we place the blower door frame and fan in a main exterior door and use it to depressurize the structure to 50 Pascals for precise testing results. After depressurization, air from outside rushes in through cracks and gaps, making leak detection much easier. With a thermal imager, we identify cold or warm spots in walls, ceilings, and other surfaces that reveal air leakage into 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. Once sealing is complete, we perform an immediate retest to verify that the desired blower door score is achieved and that your home meets all energy efficiency requirements in Evesham township, NJ.

Blower Door Test for Contractors in Evesham township, NJ

For contractors conducting blower door test in Evesham township, NJ, well-insulated homes generally require only minimal on-site corrections during the test. Using easy-to-apply materials like chalk and spray foam, we can correct small leaks or gaps during the test itself. In over 90% of cases, we successfully reach a passing blower door test score within two hours and hand over all necessary paperwork for immediate permit closure.

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Schedule Your blower door test in Evesham township, NJ

Get fast, reliable, and certified blower door test in Evesham township, NJ from our experienced and trusted team. Whether you’re a homeowner improving comfort or a contractor completing inspection requirements, our tests meet energy codes with careful attention to detail.

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