Blower Door Test in Middlesex, NJ

Ensure your home is sealed properly and energy-efficient with quality blower door test in Middlesex, NJ. Our certified technicians support homeowners, builders, and contractors in finding hidden leaks, improving comfort, and ensuring compliance with NJ energy codes.

What Is A Blower Door Test?

A blower door test measures the air changes per hour within a home or building. Air exchange is a normal and healthy process that allows stale indoor air to be replaced with fresh air. An excessive rate of air changes can be inefficient because each time the air is replaced, it must be reheated or recooled, raising energy costs. 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 Middlesex, NJ helps pinpoint problem areas early, improving insulation performance, comfort, and home lifespan.

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How Is A Blower Door Test Conducted?

To execute blower door test in Middlesex, NJ, exterior windows and doors are secured shut, while interior doors are left open to distribute air evenly. One main exterior door is identified, and an adjustable aluminum frame with a fabric panel is securely attached. A calibrated fan is installed onto the frame, creating a pressure difference of 50 Pascals, comparable to a continuous 20 mph wind blowing on the home.

When the fan depressurizes the home, outdoor air seeps in through leaks, crevices, and other air pathways. A sensitive device called a nanometer measures how the fan’s pressure relates to the home’s internal air pressure. 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?

In Middlesex, NJ, residential properties must meet the energy efficiency criteria outlined in the 2015 International Energy Conservation Code (IECC) or updated local versions. In most jurisdictions, 3 air changes per hour or less is the benchmark for acceptable blower door test results and energy efficiency. Satisfying this requirement in your blower door test in Middlesex, NJ helps optimize energy use and ensures you meet local building standards.

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 often collaborate with home builders, contractors, and homeowners who require blower door test in Middlesex, NJ to meet energy efficiency standards and close permits. A duct leakage test can be required when ducts or HVAC components are installed outside the structure’s thermal envelope. Learn more about energy code compliance.

Using blower door test in Middlesex, NJ, homeowners can detect unwanted airflow. The depressurization process reveals leaks, helping them seal gaps and increase comfort. A blower door test is quick to perform but offers a long-lasting impact on comfort, energy savings, and home efficiency across all NJclimates.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Install an effective air barrier, for example Tyvek or Zip Sheathing, and make certain all seams are sealed with durable tape.
Use insulation that has the designated R-value and confirm it’s properly applied throughout the building envelope for maximum efficiency.
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 building departments provide step-by-step compliance guides — you can find the Philadelphia example here.
Our team at Local Energy Audits employs thermal imaging, caulk, and spray foam to locate and repair 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 Middlesex, NJ

To get ready for blower door test in Middlesex, NJ, our team turns off the HVAC system and shuts down kitchen and bathroom 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. 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 helps us identify air leakage points by revealing temperature shifts in walls, ceilings, and surfaces adjoining unconditioned areas. 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 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 Middlesex, NJ.

Blower Door Test for Contractors in Middlesex, NJ

Professionally insulated homes tested by contractors during blower door test in Middlesex, NJ can often address minor issues right on the spot. With efficient sealing products such as chalk and spray foam, minor air leaks can often be fixed immediately. In over 90% of cases, our team achieves a passing blower door test score within just two hours and provides the documentation required to close the permit promptly.

888 213-3975

Schedule Your blower door test in Middlesex, NJ

Get professional-grade, efficient, and certified blower door test in Middlesex, NJ handled by our experienced staff. 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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