Blower Door Test in Deptford township, NJ

Make sure your home meets airtightness and efficiency goals with certified blower door test in Deptford township, NJ. Our qualified technicians assist homeowners, builders, and contractors in detecting air leaks, optimizing comfort, and maintaining compliance with NJ energy codes.

What Is A Blower Door Test?

A blower door test measures how many air changes per hour occur in your home, ensuring fresh air circulation and improved indoor air quality. 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 often cause drafts, discomfort, and humidity-related issues such as condensation and mold growth inside the home. A blower door test in Deptford township, NJ identifies potential air leakage problems early so homeowners and builders can improve comfort, energy performance, and home durability.

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How Is A Blower Door Test Conducted?

In preparation for blower door test in Deptford township, NJ, all exterior entry points are sealed, and interior doors are left open to allow consistent air circulation. A central door to the outside is selected, and an adjustable aluminum frame with a fabric cover is installed there. After setup, a calibrated fan is attached to the frame to lower the air pressure inside the house to 50 Pascals, equivalent to a 20 mph wind.

When the fan depressurizes the home, outdoor air seeps in through leaks, crevices, and other air pathways. Using a sensitive instrument known as a nanometer, we measure the fan’s pressure against the home’s internal pressure. Measurements are expressed as air changes per hour (ACH), showing how effectively the home retains conditioned air in the NJ environment.

What Is A Passing Blower Door Test Score?

In Deptford township, NJ, homes are designed to meet or exceed the 2015 International Energy Conservation Code (IECC) or the latest locally adopted standards. Typically, a passing blower door test result is 3 air changes per hour or lower, which indicates good energy efficiency. By meeting this standard in your blower door test in Deptford township, NJ, you can enjoy lower utility bills and peace of mind with code compliance.

Why Do I Need A Blower Door Test?

The State of NJ and its local governments follow the IECC standards, which require blower door test on newly built or remodeled residential dwellings. Our team frequently assists home builders, contractors, and homeowners performing blower door test in Deptford township, NJ to verify compliance and secure permit approval. In some cases, a duct leakage test is needed if ducts or HVAC systems lie outside the home’s thermal envelope. Learn more about energy code compliance.

There are many benefits of blower door test in Deptford township, NJ for homeowners. When the fan lowers indoor pressure, leaks become visible, allowing for easy identification of inefficiencies and energy-saving opportunities. This simple test, completed in a few hours, creates a long-lasting impact on your home’s efficiency and comfort during NJ’ hot and cold months.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Use a reliable air barrier like Tyvek or Zip Sheathing and make sure all seams are securely taped.
Install insulation of the appropriate R-value and inspect to confirm it’s correctly fitted in all envelope areas.
Seal all penetrations in exterior walls using caulk or spray foam.
Ensure doors and windows are properly installed, caulked, and weather-sealed.
Seal every transition point between conditioned and unconditioned environments, including attics, crawl spaces, and basements.
Many local municipalities issue code compliance checklists — the Philadelphia example is available here.
Local Energy Audits provides on-site leak detection and sealing using advanced thermal imaging tools, caulk, and spray foam./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 Deptford township, NJ

We begin blower door test in Deptford township, NJ by switching off the HVAC system and shutting down all exhaust fans throughout the home. 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. After all openings are closed, we choose a central exterior door, install the blower door frame and fan, and depressurize the house to 50 Pascals to gauge airflow. When the home reaches negative pressure, outside air infiltrates through openings, making leaks visible. A thermal imager allows us to pinpoint problem spots by highlighting temperature contrasts in walls, ceilings, and surfaces exposed to unconditioned spaces. Our team brings chalk, spray foam, and weatherstripping supplies to every job, enabling us to collaborate with homeowners or contractors to seal visible air leakage areas immediately. Once air leaks are sealed, we quickly retest to determine if the desired blower door score has been achieved, ensuring your home meets Deptford township, NJ efficiency codes.

Blower Door Test for Contractors in Deptford township, NJ

For contractors arranging blower door test in Deptford township, NJ, most homes with professional insulation can handle small air leakage issues during the test itself. Using simple yet effective materials like chalk and spray foam, we can seal most small leaks or gaps right during testing. In over 90% of cases, we achieve a passing blower door test score within two hours and issue the full documentation needed to complete the building permit process on the same day.

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Schedule Your blower door test in Deptford township, NJ

Receive professional, accurate, and certified blower door test in Deptford township, NJ from our highly skilled technicians. Whether you’re optimizing home comfort or finalizing construction approval, every test we perform adheres to energy code requirements with precision.

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