Blower Door Test in Broomall, PA

Make sure your home meets airtightness and efficiency goals with certified blower door test in Broomall, PA. Our qualified technicians assist homeowners, builders, and contractors in detecting air leaks, optimizing comfort, and maintaining compliance with PA 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. When a home experiences excessive air changes, the HVAC system must reheat or recool more frequently, increasing energy use and reducing efficiency. When air changes occur too often, they can result in drafts, air leakage discomfort, and moisture-related problems such as condensation and mold. A blower door test in Broomall, PA 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?

To perform blower door test in Broomall, PA, all exterior doors and windows are tightly sealed, while interior doors remain open to promote balanced airflow throughout the home. An adjustable aluminum frame and fabric panel are placed within a central exterior doorway to conduct the test. 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.

As the fan extracts air, exterior air begins entering the house through any unsealed spaces or cracks. A sensitive nanometer is used to monitor and compare the pressure difference between the blower fan and the home’s interior air. 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?

In Broomall, PA, energy efficiency standards for homes are based on the 2015 International Energy Conservation Code (IECC) or more recent updates approved by the jurisdiction. An acceptable blower door test result in most areas is 3 air changes per hour or less, demonstrating solid energy performance. Reaching this target in your blower door test in Broomall, PA helps maintain lower energy bills and fulfills local code obligations.

Why Do I Need A Blower Door Test?

In accordance with the IECC, the State of PA and various local authorities require blower door test for new or remodeled residential properties. Our team frequently assists home builders, contractors, and homeowners performing blower door test in Broomall, PA to verify compliance and secure permit approval. A duct leakage test may also be performed when ductwork or HVAC equipment extends beyond the thermal envelope. Learn more about energy code compliance.

Homeowners see real value in blower door test in Broomall, PA. As the fan draws air out, leaks become clear, making it easy to target repairs and improve efficiency. A blower door test takes only a short time to complete but can have a lasting effect on your home’s comfort and energy efficiency through PA’ hot and cool seasons.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Use a trusted air barrier like Tyvek or Zip Sheathing, ensuring all joints and seams are properly taped and sealed.
Apply insulation of the correct R-value and make sure it fits snugly in all areas of the building envelope.
Seal all penetrations in exterior walls using caulk or spray foam.
Ensure doors and windows are properly installed, caulked, and weather-sealed.
Close gaps and penetrations between conditioned zones and unconditioned sections like attics, basements, and crawl spaces.
Local permitting offices often offer official compliance checklists — review the Philadelphia sample here for reference.
At Local Energy Audits, we utilize thermal imaging equipment, caulk, and spray foam to identify and fix air leaks during testing./li>
Over 90% of our projects pass within two hours, with all required paperwork issued immediately to close the permit.

Preparing for a Blower Door Test in Broomall, PA

We start the process of blower door test in Broomall, PA by ensuring all heating, air conditioning, and exhaust systems are turned off. 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. With the home properly sealed, we mount the blower door frame and fan in a central exterior door, using it to depressurize to 50 Pascals for exact airflow readings. Once depressurization occurs, outdoor air enters the home more aggressively, revealing leaks more clearly. A thermal imager helps highlight problem zones by detecting temperature variations in walls, ceilings, and areas connected to unconditioned spaces. Using chalk, spray foam, and weatherstripping, we assist homeowners and contractors in addressing visible air leakage areas on-site. Once leaks are addressed, we perform another test to confirm the desired blower door score and verify compliance with local efficiency regulations in Broomall, PA.

Blower Door Test for Contractors in Broomall, PA

For contractors scheduling blower door test in Broomall, PA, most professionally insulated homes can quickly fix minor issues on-site during the testing process. With materials such as chalk and spray foam, most small leaks or gaps can be sealed immediately on-site. In more than 90% of cases, we achieve a passing blower door test score within two hours and provide complete documentation to close out the building permit the same day.

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Schedule Your blower door test in Broomall, PA

Get fast, reliable, and certified blower door test in Broomall, PA from our experienced and trusted team. Whether you’re improving comfort as a homeowner or completing a project as a contractor, we guarantee every test is performed with accuracy and full energy code compliance.

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