Blower Door Test in Marlboro, NJ

Make sure your home meets airtightness and efficiency goals with certified blower door test in Marlboro, 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 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. Too many air changes, however, can be detrimental because every time the air is replaced, it must be reheated or recooled, leading to higher energy use and lower efficiency. Excessive ventilation can lead to unwanted drafts, air leakage discomfort, and potential mold, condensation, or moisture problems indoors. A blower door test in Marlboro, NJ assists in finding and sealing air leaks early to improve home comfort, energy efficiency, and overall durability.

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How Is A Blower Door Test Conducted?

When performing blower door test in Marlboro, NJ, the technician ensures all exterior doors and windows are sealed and interior doors are open for steady air movement. One chosen exterior door is equipped with an adjustable aluminum frame and fabric panel for test installation. A calibrated fan is fitted into the frame and depressurizes the home to 50 Pascals, mimicking the pressure caused by a 20 mph wind.

As the fan extracts air, exterior air begins entering the house through any unsealed spaces or cracks. Using a sensitive instrument known as a nanometer, we measure the fan’s pressure against the home’s internal pressure. The gathered results are converted into air changes per hour (ACH) to determine how well-sealed and efficient the home is in the NJ climate.

What Is A Passing Blower Door Test Score?

In Marlboro, NJ, compliance with the 2015 International Energy Conservation Code (IECC) or subsequent locally adopted versions is typically mandatory for residential properties. Most areas recognize 3 air changes per hour or less as the target blower door test value to ensure energy efficiency. Achieving this goal during your blower door test in Marlboro, NJ promotes energy savings and demonstrates adherence to local building rules.

Why Do I Need A Blower Door Test?

NJ and several of its municipalities comply with the IECC (International Energy Conservation Code), mandating blower door test for new or updated homes. Our team frequently assists home builders, contractors, and homeowners performing blower door test in Marlboro, NJ to verify compliance and secure permit approval. If ducts or HVAC units are located outside the thermal envelope, a duct leakage test may also be mandated. Learn more about energy code compliance.

Homeowners who choose blower door test in Marlboro, NJ can easily locate leaks. As the fan depressurizes the home, airflow through gaps becomes apparent, exposing areas needing improvement. 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.
Use an air barrier system such as Tyvek or Zip Sheathing and verify that each seam is properly sealed with tape.
Ensure the insulation used meets the proper R-value and is well fitted throughout the structure’s 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 all openings between conditioned and unconditioned areas, including basements, attics, and crawl spaces.
Building departments in many areas share checklists for verifying compliance — download the Philadelphia version here as a sample.
Our team at Local Energy Audits employs thermal imaging, caulk, and spray foam to locate and repair leaks efficiently on-site./li>
In more than 90% of cases, we secure a passing score within two hours and deliver the paperwork needed to close the permit.

Preparing for a Blower Door Test in Marlboro, NJ

As part of preparing for blower door test in Marlboro, NJ, we power down the HVAC system along with kitchen and bathroom exhaust fans. Next, a brief home walkthrough ensures every exterior door and window is closed — even those opening to unconditioned areas like garages or basements outside the thermal envelope. After sealing the home, we install the blower door frame and fan in a central exterior doorway. The fan depressurizes the home to 50 Pascals to provide accurate airflow and leakage readings. Once depressurization occurs, outdoor air enters the home more aggressively, revealing leaks more clearly. Using a thermal imager, we detect problem areas by observing temperature variations in walls, ceilings, and other surfaces that connect to 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. After sealing the identified leaks, we retest right away to confirm that the desired blower door score meets local energy performance standards in Marlboro, NJ.

Blower Door Test for Contractors in Marlboro, NJ

Contractors planning blower door test in Marlboro, NJ can expect most professionally insulated homes to address small issues easily during the testing phase. 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.

888 213-3975

Schedule Your blower door test in Marlboro, NJ

Get expert, certified, and dependable blower door test in Marlboro, NJ delivered by our experienced professionals. Whether you’re a homeowner focused on efficiency or a contractor working to close a permit, we ensure each test is conducted with precision and meets all energy code standards.

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