Blower Door Test in Lansdowne, PA

Make sure your home meets airtightness and efficiency goals with certified blower door test in Lansdowne, PA. Our certified team partners with homeowners, builders, and contractors to uncover air leaks, enhance comfort, and ensure PA energy code adherence.

What Is A Blower Door Test?

A blower door test measures how many air changes per hour occur in your home, ensuring fresh air circulation and improved indoor air quality. Excessive air changes can cause problems since each exchange requires reheating or recooling, resulting in greater energy consumption and reduced 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 Lansdowne, PA helps discover hidden leaks early so homeowners can save energy, enhance comfort, and improve home resilience.

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How Is A Blower Door Test Conducted?

To complete blower door test in Lansdowne, PA, all exterior openings are sealed, and interior doors are kept open to ensure equal airflow throughout the property. A single central exterior door is designated, where the blower door’s aluminum frame and fabric panel are set up. Technicians use a calibrated fan mounted on the frame to bring the home’s interior to 50 Pascals, approximating a 20 mph wind on the walls.

As the fan removes air from inside, exterior air flows in through leaks and gaps in the building envelope. A precise tool called a nanometer is used to compare the pressure generated by the fan with that inside the home. Measurements are expressed as air changes per hour (ACH), showing how effectively the home retains conditioned air in the PA environment.

What Is A Passing Blower Door Test Score?

Homes built in Lansdowne, PA are expected to comply with the 2015 International Energy Conservation Code (IECC) or any newer local versions in effect. For most regions, achieving 3 air changes per hour or less on a blower door test ensures that the home is properly energy efficient. By meeting this standard in your blower door test in Lansdowne, PA, you can enjoy lower utility bills and peace of mind with code compliance.

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 certified technicians assist home builders, contractors, and homeowners with blower door test in Lansdowne, PA to meet energy requirements and wrap up permit approvals. A duct leakage test requirement applies if ducts or HVAC units are positioned outside the structure’s thermal envelope. Learn more about energy code compliance.

Homeowners gain major advantages from blower door test in Lansdowne, PA. As the fan depressurizes the home, incoming air through leaks becomes easier to detect, revealing problem spots and potential energy-saving improvements. In only a few hours, a blower door test can deliver a long-lasting impact on energy efficiency, comfort, and indoor performance throughout PA’ changing seasons.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Choose an appropriate air barrier, like Tyvek or Zip Sheathing, and ensure all seams are accurately and securely taped.
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.
Close any gaps connecting conditioned and unconditioned spaces, such as those leading to basements, attics, or crawl spaces.
Local permitting offices often offer official compliance checklists — review the Philadelphia sample here for reference.
Equipped with thermal imaging tools, caulk, and spray foam, Local Energy Audits can find and fix leaks directly at your property./li>
We achieve a passing score within two hours in more than 90% of tests and issue the documents to close the building permit.

Preparing for a Blower Door Test in Lansdowne, PA

Before starting blower door test in Lansdowne, PA, we turn off all heating, air conditioning, and exhaust fans in bathrooms and kitchens. 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, 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. When the home reaches negative pressure, outside air infiltrates through openings, making leaks visible. A thermal imager helps us visualize temperature differences in walls, ceilings, and surfaces that separate conditioned and unconditioned spaces. Our technicians bring chalk, spray foam, and weatherstripping supplies to handle visible air leakage issues directly with homeowners or contractors on-site. After completing sealing improvements, we retest immediately to ensure the desired blower door score is met and the home complies with efficiency standards in Lansdowne, PA.

Blower Door Test for Contractors in Lansdowne, PA

During blower door test in Lansdowne, PA, contractors will find that well-insulated homes can manage minor issues directly on-site. With readily available sealing materials like chalk and spray foam, we can repair minor leaks or gaps on the spot. In more than 90% of cases, our team secures a passing blower door test score within two hours and provides full documentation to complete the permit without any delay.

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Schedule Your blower door test in Lansdowne, PA

Get trusted, professional, and certified blower door test in Lansdowne, PA from our experienced technicians. Whether you’re optimizing home comfort or finalizing construction approval, every test we perform adheres to energy code requirements with precision.

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