Blower Door Test in Gwynedd, PA

Confirm your home’s energy performance and identify leaks through accurate blower door test in Gwynedd, PA. Our skilled technicians help homeowners, builders, and contractors find air leaks, increase comfort, and comply with PA energy standards.

What Is A Blower Door Test?

A blower door test determines the air changes per hour of a house or building, ensuring proper ventilation as old air cycles out and fresh air flows in. Too frequent air exchanges lead to energy waste, as every replacement requires reheating or recooling, decreasing your system’s efficiency. Excessive air changes often cause drafts, discomfort, and humidity-related issues such as condensation and mold growth inside the home. A blower door test in Gwynedd, PA finds air leakage problems early, allowing better energy efficiency and enhanced indoor comfort for homeowners.

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How Is A Blower Door Test Conducted?

In blower door test in Gwynedd, PA, every exterior door and window is shut, while interior doors stay open to allow uniform airflow inside the building. A single main exterior door is fitted with an adjustable aluminum frame and attached fabric panel to begin the setup. A calibrated fan is then attached to the frame and used to depressurize the home to 50 Pascals, which is about the same as a steady 20 mph wind pushing against the structure.

As the fan removes air, outside air naturally flows inside through leaks, joints, and other gaps. Using a sensitive instrument known as a nanometer, we measure the fan’s pressure against the home’s internal pressure. The pressure data is turned into air changes per hour (ACH), a measure of how efficiently and tightly the home is sealed in PA.

What Is A Passing Blower Door Test Score?

In Gwynedd, PA, all new homes must comply with the 2015 International Energy Conservation Code (IECC) or more current codes enforced by local jurisdictions. Generally, a blower door test result of 3 air changes per hour or less is considered acceptable, ensuring proper energy performance. Achieving this goal during your blower door test in Gwynedd, PA promotes energy savings and demonstrates adherence to local building rules.

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. Our team frequently assists home builders, contractors, and homeowners performing blower door test in Gwynedd, PA to verify compliance and secure permit approval. 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 benefit from blower door test in Gwynedd, PA because depressurization exposes airflow through cracks, helping identify leaks and boost 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 an air barrier system such as Tyvek or Zip Sheathing and verify that each seam is properly sealed with tape.
Fit insulation with the correct R-value and make sure it’s installed without voids 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.
Seal gaps and openings separating conditioned spaces from unconditioned areas, including crawl spaces, basements, and attics.
Local jurisdictions frequently publish compliance checklists — the Philadelphia version can be downloaded here.
Equipped with thermal imaging tools, caulk, and spray foam, Local Energy Audits can find and fix leaks directly at your property./li>
Over 90% of cases result in a passing score within two hours, along with complete permit documentation.

Preparing for a Blower Door Test in Gwynedd, PA

Before starting blower door test in Gwynedd, PA, we turn off all heating, air conditioning, and exhaust fans in bathrooms and kitchens. We proceed with a quick home walkthrough, checking that every exterior door and window is tightly shut — including ones that lead to unfinished or unconditioned spaces outside the thermal envelope. With all openings sealed, we place the blower door frame and fan in a main exterior door and use it to depressurize the structure to 50 Pascals for precise testing results. Once the home is depressurized, outside air starts infiltrating more forcefully, making it easier to spot air leaks. Using a thermal imager, we locate inefficient areas by tracking temperature changes in walls, ceilings, and surfaces bordering unconditioned spaces. We carry chalk, spray foam, and weatherstripping materials, allowing us to work directly with homeowners or contractors to fix visible air leakage issues on-site. After all leaks are sealed, we retest immediately to confirm the desired blower door score has been met and that your home satisfies efficiency requirements in Gwynedd, PA.

Blower Door Test for Contractors in Gwynedd, PA

Contractors booking blower door test in Gwynedd, PA can rest assured that most homes with professional insulation can easily handle small fixes during testing. Using simple yet effective materials like chalk and spray foam, we can seal most small leaks or gaps right during testing. In over 90% of cases, we achieve a passing blower door test score within two hours and issue the full documentation needed to complete the building permit process on the same day.

888 213-3975

Schedule Your blower door test in Gwynedd, PA

Count on our team for fast, professional, and certified blower door test in Gwynedd, PA with dependable results. 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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