Blower Door Test in Wallingford, PA

Confirm your home’s energy performance and identify leaks through accurate blower door test in Wallingford, PA. Our qualified specialists help homeowners, builders, and contractors locate hidden leaks, improve comfort, and fulfill PA energy code standards.

What Is A Blower Door Test?

A blower door test helps determine the air changes per hour to confirm that your home has sufficient fresh air replacement. When the air changes too often, energy efficiency drops since the system must continuously reheat or recool the air inside. 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 Wallingford, PA 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 Wallingford, PA, exterior windows and doors are secured shut, while interior doors are left open to distribute air evenly. A central exterior door is picked, where the technician fits an adjustable aluminum frame and fabric panel for airtight testing. 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.

As the fan creates negative pressure, outside air infiltrates the home through gaps and small openings. With the help of a nanometer, we determine the pressure difference between the fan’s airflow and the home’s internal conditions. The gathered results are converted into air changes per hour (ACH) to determine how well-sealed and efficient the home is in the PA climate.

What Is A Passing Blower Door Test Score?

Construction in Wallingford, PA must comply with the 2015 International Energy Conservation Code (IECC) or updated versions recognized by local authorities. Typically, a passing blower door test result is 3 air changes per hour or lower, which indicates good energy efficiency. Passing this threshold during your blower door test in Wallingford, PA ensures both energy savings and full compliance with local regulations.

Why Do I Need A Blower Door Test?

PA state regulations and many municipalities abide by the IECC, enforcing blower door tests for newly constructed or renovated homes. We proudly serve home builders, contractors, and homeowners who need blower door test in Wallingford, PA to pass inspections and fulfill energy code obligations. 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 benefit from blower door test in Wallingford, PA because depressurization exposes airflow through cracks, helping identify leaks and boost efficiency. Completing a blower door test takes just a few hours, yet its long-lasting impact enhances comfort and performance in every PAseason.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Use Tyvek or Zip Sheathing as your air barrier and carefully tape all seams to prevent air leakage.
Apply the correct R-value insulation and verify that it’s properly fitted to seal the whole building envelope.
Seal all penetrations in exterior walls using caulk or spray foam.
Ensure doors and windows are properly installed, caulked, and weather-sealed.
Properly seal all connections between conditioned and unconditioned zones, including basements, crawl spaces, and attics.
Local code departments usually provide a checklist to assist with compliance — see 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>
In over 90% of tests, we obtain a passing score within two hours and issue all paperwork required for permit closure.

Preparing for a Blower Door Test in Wallingford, PA

To prepare a home for blower door test in Wallingford, PA, we shut off the HVAC system and disable all exhaust fans. We then perform a brief inspection throughout the home to make sure all exterior doors and windows are tightly shut — even those opening to garages, basements, or spaces outside the thermal envelope. After sealing the home, the blower door fan is installed in a central exterior doorway and used to lower pressure to 50 Pascals to measure airflow and leakage effectively. After the pressure drops, outdoor air enters through gaps more noticeably, making leaks easier to identify. By using a thermal imager, we can spot temperature variations in walls, ceilings, and other surfaces that indicate leaks into unconditioned areas. Carrying chalk, spray foam, and weatherstripping materials, we work directly with homeowners or contractors to resolve visible air leakage issues during the visit. Once sealing is finished, we conduct an instant retest to ensure the desired blower door score is reached, confirming compliance with Wallingford, PA building codes.

Blower Door Test for Contractors in Wallingford, PA

For contractors arranging blower door test in Wallingford, PA, most homes with professional insulation can handle small air leakage issues during the test itself. 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.

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Schedule Your blower door test in Wallingford, PA

Enjoy fast response, professional service, and certified results with blower door test in Wallingford, PA from our expert team. Whether you’re a homeowner aiming to enhance comfort or a contractor needing to close out a permit, we make sure each test complies with energy codes accurately and efficiently.

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