Blower Door Test in Hockessin, DE

Ensure your property meets energy codes and maintains efficiency through expert blower door test in Hockessin, DE. Our qualified specialists help homeowners, builders, and contractors locate hidden leaks, improve comfort, and fulfill DE energy code standards.

What Is A Blower Door Test?

A blower door test quantifies how often indoor air is renewed through air changes per hour, helping maintain optimal ventilation. When a home experiences excessive air changes, the HVAC system must reheat or recool more frequently, increasing energy use and reducing efficiency. 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 Hockessin, DE helps pinpoint problem areas early, improving insulation performance, comfort, and home lifespan.

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How Is A Blower Door Test Conducted?

When performing blower door test in Hockessin, DE, the technician ensures all exterior doors and windows are sealed and interior doors are open for steady air movement. An adjustable aluminum frame and sturdy fabric panel are installed in one central exterior door to prepare for testing. 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.

As air is drawn out by the fan, it causes outdoor air to infiltrate through existing leaks and gaps in the structure. Using an advanced nanometer, we evaluate the pressure difference between the fan system and the home’s interior environment. 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?

In Hockessin, DE, new construction typically follows the 2015 International Energy Conservation Code (IECC) or an updated edition implemented by local codes. In most cases, passing the blower door test means reaching 3 air changes per hour or less, proving efficient home sealing. Meeting this requirement during your blower door test in Hockessin, DE helps reduce energy costs while keeping your home compliant with local building codes.

Why Do I Need A Blower Door Test?

The State of DE and its local governments follow the IECC standards, which require blower door test on newly built or remodeled residential dwellings. Our certified technicians assist home builders, contractors, and homeowners with blower door test in Hockessin, DE to meet energy requirements and wrap up permit approvals. 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 Hockessin, DE. 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 DEhomes.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Choose an appropriate air barrier, like Tyvek or Zip Sheathing, and ensure all seams are accurately and securely taped.
Use properly rated insulation with the right R-value and ensure consistent coverage throughout 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 the transitions between conditioned and unconditioned zones, particularly around basements, attics, and crawl spaces.
Local permitting offices often offer official compliance checklists — review the Philadelphia sample here for reference.
With the help of thermal imaging tools, caulk, and spray foam, Local Energy Audits efficiently detects and seals leaks on-site./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 Hockessin, DE

We start the process of blower door test in Hockessin, DE by ensuring all heating, air conditioning, and exhaust systems are turned off. Next, a brief home walkthrough ensures every exterior door and window is closed — even those opening to unconditioned areas like garages or basements outside the thermal envelope. After sealing everything, we install the blower door frame and fan in a central exterior door and use it to depressurize the home to 50 Pascals for accurate airflow data. After depressurization, air from outside rushes in through cracks and gaps, making leak detection much easier. By employing a thermal imager, we detect heat loss by identifying temperature variations in walls, ceilings, and other surfaces leading to unconditioned zones. Using chalk, spray foam, and weatherstripping, we assist homeowners and contractors in addressing visible air leakage areas on-site. Once air leaks are sealed, we quickly retest to determine if the desired blower door score has been achieved, ensuring your home meets Hockessin, DE efficiency codes.

Blower Door Test for Contractors in Hockessin, DE

During blower door test in Hockessin, DE, contractors will find that well-insulated homes can manage minor issues directly on-site. 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 Hockessin, DE

Get professional-grade, efficient, and certified blower door test in Hockessin, DE handled by our experienced staff. 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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