Blower Door Test in Limeport, PA

How Is A Blower Door Test Conducted?

During blower door test in Limeport, PA, exterior openings are closed securely, and interior doors are left open to maintain even air circulation across the house. A single central exterior door is designated, where the blower door’s aluminum frame and fabric panel are set up. A calibrated fan is placed within the frame and operated to depressurize the structure to 50 Pascals — nearly the same as a 20 mph wind hitting the building.

As the fan removes air from inside, exterior air flows in through leaks and gaps in the building envelope. By employing a nanometer, we measure the variance between the fan’s pressure and the internal home pressure. The test results are converted into air changes per hour (ACH), which determines the airtightness and performance level of the home in PA weather.

What Is A Passing Blower Door Test Score?

Homes in Limeport, PA are typically required to follow the 2015 International Energy Conservation Code (IECC) or the most recent version adopted locally. Typically, a passing blower door test result is 3 air changes per hour or lower, which indicates good energy efficiency. Achieving this standard in your blower door test in Limeport, PA lowers utility bills and guarantees adherence to local code requirements.

Why Do I Need A Blower Door Test?

PA, along with many city governments, enforces the IECC, which requires blower door test for residential projects after construction or renovation. Our experts assist home builders, contractors, and homeowners needing blower door test in Limeport, PA to ensure compliance with energy codes and complete final permits. A duct leakage test is sometimes required if any HVAC components or duct lines are found beyond the building’s thermal envelope. Learn more about energy code compliance.

Homeowners who choose blower door test in Limeport, PA can easily locate leaks. As the fan depressurizes the home, airflow through gaps becomes apparent, exposing areas needing improvement. Typically completed within a few hours, a blower door test provides a long-lasting impact on comfort, energy efficiency, and overall home performance in PA’ varied climate.

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.
• Install insulation of the appropriate R-value and inspect to confirm it’s correctly fitted in all envelope areas.
• Seal all penetrations in exterior walls using caulk or spray foam.
• Ensure doors and windows are properly installed, caulked, and weather-sealed.
• Seal all joints and gaps that connect conditioned and unconditioned areas such as basements, attics, and crawl spaces.
• Local building departments often supply a detailed checklist to ensure compliance — you can download the Philadelphia example here for guidance.
• Local Energy Audits identifies and repairs leaks on-site using thermal imaging tools, caulk, and high-quality spray foam./li>
• We achieve a passing score within two hours in more than 90% of tests and issue the documents to close the building permit.