Blower Door Test in Georgetown, DE

Protect your energy investment and verify airtightness with advanced blower door test in Georgetown, DE. Our certified team helps homeowners, builders, and contractors locate air leaks, enhance indoor comfort, and meet all DE energy efficiency requirements.

What Is A Blower Door Test?

A blower door test provides accurate data on air changes per hour, showing how efficiently fresh air circulates through your space. Frequent air replacement can harm energy performance, as each exchange requires reheating or recooling the air. When air changes occur too often, they can result in drafts, air leakage discomfort, and moisture-related problems such as condensation and mold. A blower door test in Georgetown, DE identifies air leakage issues before they become serious, ensuring efficiency, comfort, and long-term durability.

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How Is A Blower Door Test Conducted?

For blower door test in Georgetown, DE, all outside doors and windows are closed properly, and inside doors are kept open to balance air pressure throughout the space. One central exterior door is chosen, where an adjustable aluminum frame and durable fabric panel are securely installed. Technicians mount a calibrated fan onto the frame to achieve 50 Pascals of depressurization — similar to a constant 20 mph wind acting on the home.

As air is drawn out by the fan, it causes outdoor air to infiltrate through existing leaks and gaps in the structure. Using a sensitive instrument known as a nanometer, we measure the fan’s pressure against the home’s internal pressure. These measurements are used to calculate air changes per hour (ACH), which reflects the home’s airtightness and performance under DE weather.

What Is A Passing Blower Door Test Score?

In Georgetown, DE, residential buildings must meet the benchmarks set by the 2015 International Energy Conservation Code (IECC) or any newer codes adopted locally. An acceptable blower door test result in most areas is 3 air changes per hour or less, demonstrating solid energy performance. Passing this requirement during a blower door test in Georgetown, DE keeps your home efficient and aligned with local building code standards.

Why Do I Need A Blower Door Test?

DE, along with many city governments, enforces the IECC, which requires blower door test for residential projects after construction or renovation. We frequently assist home builders, contractors, and homeowners who need blower door test in Georgetown, DE to comply with energy codes and finalize building 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.

Performing blower door test in Georgetown, DE allows homeowners to identify and fix leaks. The test makes air infiltration visible, uncovering opportunities to reduce energy loss. Completing a blower door test takes just a few hours, yet its long-lasting impact enhances comfort and performance in every DEseason.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Use high-quality air barrier materials like Tyvek or Zip Sheathing and confirm all seams are perfectly taped.
Apply insulation of the correct R-value and make sure it fits snugly in all areas 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 every transition point between conditioned and unconditioned environments, including attics, crawl spaces, and basements.
Local code offices often issue compliance checklists — access the Philadelphia example here for reference.
Equipped with thermal imaging tools, caulk, and spray foam, Local Energy Audits can find and fix leaks directly at your property./li>
More than 90% of the time, we deliver a passing score in under two hours and issue all documents needed for permit approval.

Preparing for a Blower Door Test in Georgetown, DE

For blower door test in Georgetown, DE, preparation includes turning off all heating and air conditioning units, plus bathroom and kitchen exhaust fans. We follow with a quick walkthrough to ensure all exterior doors and windows are fully closed — including those that connect to garages, basements, or any part outside the thermal envelope. Once all openings are sealed, we place the blower door frame and fan in a central exterior door. The fan then lowers the pressure to 50 Pascals for precise leakage measurement. Once the home is under depressurization, exterior air infiltrates faster through cracks, helping pinpoint leaks. Using a thermal imager, we detect problem areas by observing temperature variations in walls, ceilings, and other surfaces that connect 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. 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 Georgetown, DE.

Blower Door Test for Contractors in Georgetown, DE

Contractors booking blower door test in Georgetown, DE can rest assured that most homes with professional insulation can easily handle small fixes during testing. With materials such as chalk and spray foam on hand, minor leaks or gaps can usually be sealed immediately. In over 90% of cases, we are able to reach a passing blower door test score in under two hours and supply all necessary paperwork to finalize the building permit right away.

888 213-3975

Schedule Your blower door test in Georgetown, DE

Count on our skilled technicians for fast, precise, and certified blower door test in Georgetown, DE. Whether you’re a homeowner improving energy performance or a contractor completing certification, we make sure each test fulfills all energy code requirements.

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