Blower Door Test in Malvern, PA

Evaluate your home’s air leakage and achieve energy compliance with precise blower door test in Malvern, PA. Our qualified technicians assist homeowners, builders, and contractors in detecting air leaks, optimizing comfort, and maintaining compliance with PA energy codes.

What Is A Blower Door Test?

A blower door test measures the building’s air changes per hour, helping ensure indoor air is consistently refreshed. When a home experiences excessive air changes, the HVAC system must reheat or recool more frequently, increasing energy use and reducing efficiency. Excessive ventilation can lead to unwanted drafts, air leakage discomfort, and potential mold, condensation, or moisture problems indoors. A blower door test in Malvern, PA helps uncover these issues early, enabling homeowners and builders to detect air leaks, enhance energy efficiency, and ensure a more comfortable, long-lasting home.

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How Is A Blower Door Test Conducted?

When conducting blower door test in Malvern, PA, technicians close all exterior doors and windows and keep interior doors open for consistent air movement. One main exterior door is identified, and an adjustable aluminum frame with a fabric panel is securely attached. A calibrated fan mounted on the frame reduces the home’s pressure to 50 Pascals, simulating the force of a continuous 20 mph wind.

As the fan exhausts indoor air, outside air starts seeping into the home through small leaks and gaps. A sensitive nanometer is used to monitor and compare the pressure difference between the blower fan and the home’s interior air. These measurements are used to calculate air changes per hour (ACH), which reflects the home’s airtightness and performance under PA weather.

What Is A Passing Blower Door Test Score?

Homes built in Malvern, PA are expected to comply with the 2015 International Energy Conservation Code (IECC) or any newer local versions in effect. In most locations, 3 air changes per hour or less is the standard blower door test result for efficient home performance. Complying with this benchmark during a blower door test in Malvern, PA helps cut energy expenses and meet local building regulations.

Why Do I Need A Blower Door Test?

PA state regulations and many municipalities abide by the IECC, enforcing blower door tests for newly constructed or renovated homes. We regularly provide blower door test in Malvern, PA for home builders, contractors, and homeowners working to meet local code requirements and close 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 gain major advantages from blower door test in Malvern, PA. As the fan depressurizes the home, incoming air through leaks becomes easier to detect, revealing problem spots and potential energy-saving improvements. Taking only a few hours, a blower door test creates a long-lasting impact by improving comfort, performance, and efficiency in PAhomes.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Install an effective air barrier, for example Tyvek or Zip Sheathing, and make certain all seams are sealed with durable 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.
Close and seal every opening between heated or cooled spaces and unconditioned areas such as basements, attics, and crawl spaces.
Many local municipalities issue code compliance checklists — the Philadelphia example is available here.
Local Energy Audits uses thermal imaging tools, caulk, and spray foam to detect and seal leaks directly on-site./li>
In the majority of cases—over 90%—we reach a passing score within two hours and provide all closing documentation.

Preparing for a Blower Door Test in Malvern, PA

When preparing for blower door test in Malvern, PA, we first switch off the home’s heating, cooling, and exhaust systems. We then perform a detailed walkthrough to verify that all exterior windows and doors are tightly shut, including any that lead to spaces beyond 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 depressurization, air infiltration from outdoors increases, allowing faster and more accurate leak detection. A thermal imager helps us visualize temperature differences in walls, ceilings, and surfaces that separate conditioned and unconditioned spaces. Our team provides on-site repair using chalk, spray foam, and weatherstripping, working with homeowners or contractors to fix visible air leakage problems. After sealing, we can immediately retest to confirm whether the desired blower door score has been reached, ensuring your home complies with local energy efficiency standards in Malvern, PA.

Blower Door Test for Contractors in Malvern, PA

Contractors arranging blower door test in Malvern, PA will find that homes with professional insulation can typically resolve small issues right on-site during testing. 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.

888 213-3975

Schedule Your blower door test in Malvern, PA

Experience prompt, professional, and certified blower door test in Malvern, PA from our knowledgeable team. Whether you’re improving your home’s comfort or closing a building permit, our tests are performed with care and meet all energy efficiency codes.

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