Blower Door Test in Glasgow, DE

Verify your home’s airtightness and meet energy-efficiency standards with a professional blower door test in Glasgow, DE. Our certified team partners with homeowners, builders, and contractors to uncover air leaks, enhance comfort, and ensure DE energy code adherence.

What Is A Blower Door Test?

A blower door test is conducted to assess air changes per hour inside a home or structure, ensuring the right balance between air leakage and fresh airflow. Excess air exchange can harm efficiency because each replacement of indoor air requires extra energy to heat or cool it again. Excessive air changes can also lead to drafts and discomfort caused by air leaks, along with moisture, condensation, and mold problems inside the home. A blower door test in Glasgow, DE makes it easier to locate leaks and inefficiencies early, ensuring lasting comfort and reduced energy waste.

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How Is A Blower Door Test Conducted?

Before blower door test in Glasgow, DE, every exterior door and window is closed securely, while interior doors stay open to let air move evenly around the home. One central exterior entry is selected, and an aluminum frame with a flexible fabric panel is installed securely. 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 extracts air, exterior air begins entering the house through any unsealed spaces or cracks. Using a nanometer device, we assess how the pressure from the fan differs from the home’s natural air pressure. The data is converted into air changes per hour (ACH), identifying how tightly sealed and energy-efficient the house is in DE.

What Is A Passing Blower Door Test Score?

Homes in Glasgow, DE are typically required to follow the 2015 International Energy Conservation Code (IECC) or the most recent version adopted locally. An efficient home in most regions will achieve 3 air changes per hour or less during a blower door test. Achieving this goal during your blower door test in Glasgow, DE promotes energy savings and demonstrates adherence to local building rules.

Why Do I Need A Blower Door Test?

Both DE and local jurisdictions adopt the IECC energy code, making blower door test mandatory for new and renovated residential structures. We specialize in helping home builders, contractors, and homeowners with blower door test in Glasgow, DE to achieve energy code compliance and finalize inspections. A duct leakage test can be required when ducts or HVAC components are installed outside the structure’s thermal envelope. Learn more about energy code compliance.

With blower door test in Glasgow, DE, homeowners can pinpoint hidden air leaks. The depressurization process makes them obvious, enabling better sealing and lower energy costs. 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 DE’ hot and cool seasons.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Use materials like Tyvek or Zip Sheathing as your air barrier and ensure every seam is well taped for best results.
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.
Seal off any access points or gaps between conditioned and unconditioned spaces like attics, crawl spaces, and basements.
Most building departments provide detailed compliance resources — view the Philadelphia checklist example here.
Local Energy Audits uses professional-grade thermal imaging, caulk, and spray foam to locate and close leaks during the visit./li>
Over 90% of the time, we complete testing with a passing score in two hours or less and handle all permit paperwork on-site.

Preparing for a Blower Door Test in Glasgow, DE

As part of preparing for blower door test in Glasgow, DE, we power down the HVAC system along with kitchen and bathroom exhaust fans. Next, our team walks through the home to verify that every exterior door and window is sealed shut — including access points to unfinished basements, garages, or areas beyond the thermal envelope. Once all doors and windows are sealed, we set up the blower door system in a centrally located exterior door and reduce air pressure to 50 Pascals to evaluate leakage. When depressurization is complete, outside air flows in swiftly, allowing easy detection of leakage spots. With a thermal imager, we identify issues by locating temperature differences across walls, ceilings, and surfaces leading to unconditioned areas. We carry chalk, spray foam, and weatherstripping so our team can work alongside homeowners or contractors to seal visible air leakage spots right away. 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 Glasgow, DE.

Blower Door Test for Contractors in Glasgow, DE

When contractors schedule blower door test in Glasgow, DE, professionally insulated homes often only need minor adjustments that can be handled during the test. By using materials such as chalk and spray foam, our team can fix small air leaks immediately on-site. In over 90% of cases, we reach a passing blower door test score in less than two hours and hand over the documents needed to close the building permit right away.

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Schedule Your blower door test in Glasgow, DE

Count on our team for fast, professional, and certified blower door test in Glasgow, DE with dependable results. Whether you’re a homeowner or a contractor, we guarantee each blower door test is executed with accuracy and meets all local energy code requirements.

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