Blower Door Test in Old Zionsville, PA

Detect hidden air leaks and improve efficiency with professional blower door test in Old Zionsville, PA. Our certified technicians provide homeowners, builders, and contractors with expert air leak detection, better comfort, and complete PA energy code compliance.

What Is A Blower Door Test?

A blower door test quantifies how often indoor air is renewed through air changes per hour, helping maintain optimal ventilation. When air changes occur too frequently, the heating or cooling system must work harder to stabilize temperatures, increasing energy use and lowering efficiency. Excessive air circulation may cause drafts, discomfort from leaks, and indoor problems like condensation, mold, and moisture damage. A blower door test in Old Zionsville, PA detects air leaks early on, helping builders and homeowners boost efficiency and strengthen overall home comfort.

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How Is A Blower Door Test Conducted?

For accurate blower door test in Old Zionsville, PA, technicians close all exterior openings and keep interior doors open to balance airflow throughout the house. One chosen exterior door is equipped with an adjustable aluminum frame and fabric panel for test installation. Technicians mount a calibrated fan onto the frame to achieve 50 Pascals of depressurization — similar to a constant 20 mph wind acting on the home.

When the fan starts pulling air out, external air enters through the smallest cracks and leakage points. A sensitive device called a nanometer measures how the fan’s pressure relates to the home’s internal air pressure. These measurements are used to calculate air changes per hour (ACH), which reflects the home’s airtightness and performance under PA weather.

What Is A Passing Blower Door Test Score?

Residential buildings in Old Zionsville, PA must adhere to the 2015 International Energy Conservation Code (IECC) or newer versions adopted by city or county regulations. To meet efficiency standards in most areas, homes should record 3 air changes per hour or less on a blower door test. Meeting this level during your blower door test in Old Zionsville, PA supports energy efficiency and verifies that your home meets local codes.

Why Do I Need A Blower Door Test?

PA and several of its municipalities comply with the IECC (International Energy Conservation Code), mandating blower door test for new or updated homes. Our company assists home builders, contractors, and homeowners who rely on blower door test in Old Zionsville, PA to fulfill energy code compliance and finalize construction permits. You may be required to perform a duct leakage test if HVAC components are situated outside the home’s thermal envelope. Learn more about energy code compliance.

Through blower door test in Old Zionsville, PA, homeowners can easily find leaks. When the fan reduces internal pressure, air movement through problem areas becomes noticeable, offering chances to save energy. A short blower door test can result in a long-lasting impact on your home’s energy efficiency, comfort, and year-round performance in PA.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Select a proper air barrier such as Tyvek or Zip Sheathing and ensure every seam is thoroughly taped for airtight sealing.
Install insulation with the appropriate R-value and ensure it is correctly fitted across the entire 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 any gaps connecting conditioned and unconditioned spaces, such as those leading to basements, attics, or crawl spaces.
Local building departments often supply a detailed checklist to ensure compliance — you can download the Philadelphia example here for guidance.
At Local Energy Audits, we utilize thermal imaging equipment, caulk, and spray foam to identify and fix air leaks during testing./li>
We achieve a passing score within two hours in over 90% of cases and promptly issue the documents to finalize your permit.

Preparing for a Blower Door Test in Old Zionsville, PA

We start the process of blower door test in Old Zionsville, PA by ensuring all heating, air conditioning, and exhaust systems are turned off. Next, we inspect each room to confirm all exterior doors and windows are properly closed — including any leading to garages, basements, or other spaces beyond the thermal envelope. After ensuring the home is airtight, we install the blower door frame and fan in a central exterior door and depressurize the house to 50 Pascals to record airflow and leakage data accurately. Once the home is depressurized, outside air starts infiltrating more forcefully, making it easier to spot air leaks. With a thermal imager, we identify issues by locating temperature differences across walls, ceilings, and surfaces leading to unconditioned areas. We carry all necessary materials, including chalk, spray foam, and weatherstripping, to collaborate with homeowners or contractors on visible air leakage repairs during testing. 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 Old Zionsville, PA.

Blower Door Test for Contractors in Old Zionsville, PA

Contractors booking blower door test in Old Zionsville, PA can rest assured that most homes with professional insulation can easily handle small fixes during testing. With tools such as chalk and spray foam, we can address small leaks or gaps without delay. In more than 90% of cases, we deliver a passing blower door test score within two hours and finalize all permit documentation immediately afterward.

888 213-3975

Schedule Your blower door test in Old Zionsville, PA

Get professional-grade, efficient, and certified blower door test in Old Zionsville, PA handled by our experienced staff. Whether you’re focused on comfort improvements or completing compliance checks, we ensure every test meets energy codes with precision and care.

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