Blower Door Test in Felton, DE

Confirm your home’s energy performance and identify leaks through accurate blower door test in Felton, DE. Our professional technicians help homeowners, builders, and contractors identify air leaks, improve home comfort, and satisfy DE energy code regulations.

What Is A Blower Door Test?

A blower door test measures the air changes per hour within a home or building. Air exchange is a normal and healthy process that allows stale indoor air to be replaced with fresh air. If air changes happen too often, it forces your system to reheat or recool the air repeatedly, wasting energy and lowering performance. Excessive ventilation can lead to unwanted drafts, air leakage discomfort, and potential mold, condensation, or moisture problems indoors. A blower door test in Felton, 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 Felton, DE, every exterior door and window is closed securely, while interior doors stay open to let air move evenly around the home. An adjustable aluminum frame and sturdy fabric panel are installed in one central exterior door to prepare for testing. The technician mounts a calibrated fan to the frame to depressurize the house to 50 Pascals, roughly matching a 20 mph wind effect.

As the fan exhausts indoor air, outside air starts seeping into the home through small leaks and gaps. Using a highly accurate nanometer, we compare the fan-induced pressure to the natural air pressure inside the home. The collected data converts to air changes per hour (ACH), demonstrating how tightly sealed and efficient the home remains in DE climates.

What Is A Passing Blower Door Test Score?

In Felton, DE, homes generally must comply with the requirements of the 2015 International Energy Conservation Code (IECC) or newer editions enforced by local authorities. For most regions, achieving 3 air changes per hour or less on a blower door test ensures that the home is properly energy efficient. Reaching the target during your blower door test in Felton, DE guarantees lower energy consumption and full code compliance.

Why Do I Need A Blower Door Test?

In DE, both state and local jurisdictions follow the IECC (International Energy Conservation Code), requiring blower door test for new and remodeled homes. Our company assists home builders, contractors, and homeowners who rely on blower door test in Felton, DE to fulfill energy code compliance and finalize construction permits. You may be required to perform a duct leakage test if HVAC components are situated outside the home’s thermal envelope. Learn more about energy code compliance.

There are many benefits of blower door test in Felton, DE for homeowners. When the fan lowers indoor pressure, leaks become visible, allowing for easy identification of inefficiencies and energy-saving opportunities. In only a few hours, a blower door test can deliver a long-lasting impact on energy efficiency, comfort, and indoor performance throughout DE’ changing seasons.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Use a trusted air barrier like Tyvek or Zip Sheathing, ensuring all joints and seams are properly taped and sealed.
Install correctly rated insulation with the proper R-value and confirm it’s well positioned in every part 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.
Ensure all penetrations between conditioned and unconditioned areas—like attics, basements, and crawl spaces—are tightly sealed.
Local jurisdictions frequently publish compliance checklists — the Philadelphia version can be downloaded here.
Local Energy Audits uses thermal imaging tools, caulk, and spray foam to detect and seal leaks directly on-site./li>
In most situations—over 90% of the time—we get a passing score within two hours and finalize all required paperwork.

Preparing for a Blower Door Test in Felton, DE

Before starting blower door test in Felton, DE, we turn off all heating, air conditioning, and exhaust fans in bathrooms and kitchens. A brief walkthrough follows, during which we verify all exterior windows and doors — even those leading to unconditioned spaces — are closed tight to preserve the thermal envelope. With the home sealed, we select a main exterior door, install the blower door setup, and use the fan to depressurize to 50 Pascals, enabling accurate airflow measurement. Once depressurization is achieved, the inflow of outside air intensifies, making air leaks easier to find and fix. A thermal imager helps highlight problem zones by detecting temperature variations in walls, ceilings, and areas connected to unconditioned spaces. We’re equipped with chalk, spray foam, and weatherstripping materials, so we can partner with homeowners or contractors to repair visible air leakage problems right on-site. After sealing the identified leaks, we retest right away to confirm that the desired blower door score meets local energy performance standards in Felton, DE.

Blower Door Test for Contractors in Felton, DE

For contractors booking blower door test in Felton, DE, homes with quality insulation usually require only quick, on-site fixes during testing. With efficient sealing products such as chalk and spray foam, minor air leaks can often be fixed immediately. In over 90% of cases, our team achieves a passing blower door test score within just two hours and provides the documentation required to close the permit promptly.

888 213-3975

Schedule Your blower door test in Felton, DE

Receive professional, accurate, and certified blower door test in Felton, DE from our highly skilled technicians. Whether you’re improving a home’s efficiency or ensuring code compliance for a project, we perform every test with professionalism and attention to detail.

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