Blower Door Test in Glen Mills, PA

Find and fix air leaks while improving performance through reliable blower door test in Glen Mills, 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 is designed to measure air changes per hour inside homes, promoting a balance between airtightness and necessary ventilation. Too frequent air replacement can reduce efficiency since every exchange requires your system to use more energy for heating or cooling. Excessive air leakage can cause drafts, reduce comfort, and contribute to issues like condensation, moisture, and mold inside the home. A blower door test in Glen Mills, PA assists in finding and sealing air leaks early to improve home comfort, energy efficiency, and overall durability.

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How Is A Blower Door Test Conducted?

To conduct blower door test in Glen Mills, PA, exterior doors and windows are closed properly, while interior doors remain open to help maintain even air movement. A central exterior door is used as the setup point, where an adjustable aluminum frame and fabric panel are positioned. 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.

When air is drawn out by the fan, outdoor air seeps in through unsealed joints and hidden cracks. Using an advanced nanometer, we evaluate the pressure difference between the fan system and the home’s interior environment. The data collected is translated into air changes per hour (ACH), showing the home’s airtightness and overall energy efficiency in PA conditions.

What Is A Passing Blower Door Test Score?

In Glen Mills, PA, residential buildings must meet the benchmarks set by the 2015 International Energy Conservation Code (IECC) or any newer codes adopted locally. Most areas recognize 3 air changes per hour or less as the target blower door test value to ensure energy efficiency. When your blower door test in Glen Mills, PA meets this requirement, you ensure energy efficiency and maintain compliance with building codes.

Why Do I Need A Blower Door Test?

The State of PA and local municipalities have implemented the IECC code, which mandates blower door test on new and remodeled residential homes. We work closely with home builders, contractors, and homeowners who need blower door test in Glen Mills, PA to ensure compliance and successful project completion. 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.

A blower door test in Glen Mills, PA helps homeowners discover inefficiencies. Depressurizing the home makes leaks more noticeable and highlights where energy can be conserved. A blower door test usually takes just a few hours but delivers a long-lasting impact on your home’s comfort, performance, and efficiency—particularly during PA’ hot summers and cool winters.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Use a reliable air barrier like Tyvek or Zip Sheathing and make sure all seams are securely taped.
Use insulation of the correct R-value and confirm that it’s tightly installed throughout every section of the building envelope.
Seal all penetrations in exterior walls using caulk or spray foam.
Ensure doors and windows are properly installed, caulked, and weather-sealed.
Properly seal all connections between conditioned and unconditioned zones, including basements, crawl spaces, and attics.
Building departments in many areas share checklists for verifying compliance — download the Philadelphia version here as a sample.
Local Energy Audits arrives fully equipped with thermal imaging, caulk, and spray foam to detect and seal leaks in one visit./li>
In over 90% of tests, we obtain a passing score within two hours and issue all paperwork required for permit closure.

Preparing for a Blower Door Test in Glen Mills, PA

Before conducting blower door test in Glen Mills, PA, we make sure all heating, cooling, and ventilation fans are switched off. We perform a quick check throughout the property, making sure all exterior windows and doors — including those to unfinished or non-conditioned areas — are sealed, maintaining the thermal envelope. Once everything is closed off, we set up the blower door fan on a centrally located exterior door and depressurize the interior to 50 Pascals to assess air leakage accurately. After the pressure drops, outdoor air enters through gaps more noticeably, making leaks easier to identify. With a thermal imager, we identify cold or warm spots in walls, ceilings, and other surfaces that reveal air leakage into 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. Once sealing work is done, we immediately retest to verify that the desired blower door score has been achieved for compliance with local standards in Glen Mills, PA.

Blower Door Test for Contractors in Glen Mills, PA

Contractors arranging blower door test in Glen Mills, PA will find that homes with professional insulation can typically resolve small issues right on-site during testing. With chalk and spray foam on hand, our crew can seal small leaks or gaps almost instantly. In over 90% of cases, we reach a passing blower door test score in two hours and issue the required documentation for quick permit closure.

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Schedule Your blower door test in Glen Mills, PA

Get dependable, efficient, and certified blower door test in Glen Mills, PA performed by our qualified and experienced experts. Whether you’re a homeowner focused on efficiency or a contractor working to close a permit, we ensure each test is conducted with precision and meets all energy code standards.

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