Blower Door Test in Levittown, PA

How Is A Blower Door Test Conducted?

To conduct blower door test in Levittown, PA, exterior doors and windows are closed properly, while interior doors remain open to help maintain even air movement. A main exterior door is selected for setup, with an adjustable aluminum frame and fitted fabric panel placed in position. 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 extracts air, exterior air begins entering the house through any unsealed spaces or cracks. A nanometer precisely gauges the pressure applied by the fan in relation to the home’s internal air pressure. The collected data converts to air changes per hour (ACH), demonstrating how tightly sealed and efficient the home remains in PA climates.

What Is A Passing Blower Door Test Score?

In Levittown, PA, residential properties must meet the energy efficiency criteria outlined in the 2015 International Energy Conservation Code (IECC) or updated local versions. An efficient home in most regions will achieve 3 air changes per hour or less during a blower door test. Passing this requirement during a blower door test in Levittown, PA keeps your home efficient and aligned with local building code standards.

Why Do I Need A Blower Door Test?

The State of PA, along with its municipalities, observes the IECC requirements, mandating blower door test for newly constructed or updated homes. We regularly provide blower door test in Levittown, PA for home builders, contractors, and homeowners working to meet local code requirements and close permits. You may also need a duct leakage test if your ductwork or HVAC equipment lies outside the home’s thermal envelope. Learn more about energy code compliance.

Homeowners who choose blower door test in Levittown, PA can easily locate leaks. As the fan depressurizes the home, airflow through gaps becomes apparent, exposing areas needing improvement. Although it’s a short process, a blower door test produces a long-lasting impact by improving comfort and lowering energy costs throughout PA’ climate extremes.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Employ an appropriate air barrier system such as Tyvek or Zip Sheathing and verify that each seam has been correctly taped.
• Use insulation that has the designated R-value and confirm it’s properly applied throughout the building envelope for maximum efficiency.
• Seal all penetrations in exterior walls using caulk or spray foam.
• Ensure doors and windows are properly installed, caulked, and weather-sealed.
• Seal every transition point between conditioned and unconditioned environments, including attics, crawl spaces, and basements.
• 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>
• Typically, over 90% of the time we record a passing score in two hours and handle all permit-related documentation.