Blower Door Test in Evesham, NJ

Improve insulation performance and meet energy code requirements through thorough blower door test in Evesham, 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 designed to measure air changes per hour inside homes, promoting a balance between airtightness and necessary ventilation. Excessive air changes force constant reheating or recooling, driving up energy use and reducing overall home efficiency. Too much ventilation can create drafts, discomfort, and unwanted effects like condensation, moisture accumulation, and mold inside your home. A blower door test in Evesham, NJ identifies air leakage issues before they become serious, ensuring efficiency, comfort, and long-term durability.

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How Is A Blower Door Test Conducted?

When conducting blower door test in Evesham, NJ, technicians close all exterior doors and windows and keep interior doors open for consistent air movement. One primary exterior doorway is used, where a flexible aluminum frame and fabric panel are mounted tightly. A calibrated fan is placed within the frame and operated to depressurize the structure to 50 Pascals — nearly the same as a 20 mph wind hitting the building.

As the fan expels air, the resulting pressure draws outdoor air in through hidden leaks and unsealed joints. A precise tool called a nanometer is used to compare the pressure generated by the fan with that inside the home. 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?

Homes in Evesham, NJ are typically required to follow the 2015 International Energy Conservation Code (IECC) or the most recent version adopted locally. Most areas recognize 3 air changes per hour or less as the target blower door test value to ensure energy efficiency. Passing this requirement during a blower door test in Evesham, NJ keeps your home efficient and aligned with local building code standards.

Why Do I Need A Blower Door Test?

Both NJ and local jurisdictions adopt the IECC energy code, making blower door test mandatory for new and renovated residential structures. We work closely with home builders, contractors, and homeowners who need blower door test in Evesham, NJ to ensure compliance and successful project completion. A duct leakage test might be required when HVAC units or ductwork are installed beyond the home’s thermal envelope. Learn more about energy code compliance.

Homeowners gain major advantages from blower door test in Evesham, NJ. As the fan depressurizes the home, incoming air through leaks becomes easier to detect, revealing problem spots and potential energy-saving improvements. Taking only a few hours, a blower door test creates a long-lasting impact by improving comfort, performance, and efficiency in NJhomes.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Apply an appropriate air barrier, such as Tyvek or Zip Sheathing, making sure every seam is correctly taped for maximum performance.
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.
Seal off any access points or gaps between conditioned and unconditioned spaces like attics, crawl spaces, and basements.
Many cities provide compliance checklists through their building departments — see the Philadelphia version here.
Using thermal imaging technology along with caulk and spray foam, Local Energy Audits identifies and seals leaks during the inspection./li>
Over 90% of the time, we achieve a passing score in under two hours and provide all required documentation to finalize the building permit.

Preparing for a Blower Door Test in Evesham, NJ

Before starting blower door test in Evesham, NJ, we turn off all heating, air conditioning, and exhaust fans in bathrooms and kitchens. We proceed with a quick home walkthrough, checking that every exterior door and window is tightly shut — including ones that lead to unfinished or unconditioned spaces outside the thermal envelope. Once everything is sealed, we choose a centrally located exterior door and set up the blower door frame and fan. The fan then depressurizes the home to 50 Pascals, allowing us to measure airflow and leakage precisely. After the home is depressurized, incoming outdoor air becomes more intense, making leak points easy to locate. A thermal imager allows us to pinpoint problem spots by highlighting temperature contrasts in walls, ceilings, and surfaces exposed to unconditioned spaces. We carry chalk, spray foam, and weatherstripping so our team can work alongside homeowners or contractors to seal visible air leakage spots right away. Once leaks are addressed, we perform another test to confirm the desired blower door score and verify compliance with local efficiency regulations in Evesham, NJ.

Blower Door Test for Contractors in Evesham, NJ

For contractors overseeing blower door test in Evesham, NJ, most properly insulated homes can manage small on-site repairs during testing. Using readily available materials like chalk and spray foam, our team can seal small leaks and gaps on-site in minutes. In more than 90% of cases, we achieve a passing blower door test score within two hours and provide complete documentation to finalize the building permit without delay.

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Schedule Your blower door test in Evesham, NJ

Get accurate, efficient, and certified blower door test in Evesham, NJ performed by our knowledgeable experts. Whether you’re a homeowner or a contractor, we guarantee each blower door test is executed with accuracy and meets all local energy code requirements.

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