Blower Door Test in Bethany Beach, DE

Make sure your home meets airtightness and efficiency goals with certified blower door test in Bethany Beach, 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 building’s air changes per hour, helping ensure indoor air is consistently refreshed. Excessive air changes force constant reheating or recooling, driving up energy use and reducing overall home efficiency. Too much air movement from leaks can cause uncomfortable drafts, moisture accumulation, and mold or condensation issues indoors. A blower door test in Bethany Beach, DE helps discover hidden leaks early so homeowners can save energy, enhance comfort, and improve home resilience.

888 213-3975

What Our Clients Say

How Is A Blower Door Test Conducted?

For blower door test in Bethany Beach, 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 entry is selected, and an aluminum frame with a flexible fabric panel is installed securely. 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 the fan removes air, outside air naturally flows inside through leaks, joints, and other gaps. 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 Bethany Beach, DE, residential buildings must meet the benchmarks set by the 2015 International Energy Conservation Code (IECC) or any newer codes adopted locally. An efficient home in most regions will achieve 3 air changes per hour or less during a blower door test. Meeting this level during your blower door test in Bethany Beach, DE supports energy efficiency and verifies that your home meets local codes.

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 often work with home builders, contractors, and homeowners requiring blower door test in Bethany Beach, DE to meet local energy codes and obtain permit approval. 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.

By performing blower door test in Bethany Beach, DE, homeowners can identify where conditioned air escapes. Depressurization makes leaks visible, uncovering ways to enhance comfort and efficiency. A blower door test is quick to perform but offers a long-lasting impact on comfort, energy savings, and home efficiency across all DEclimates.

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.
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.
Make sure to seal all separations between conditioned and unconditioned areas, including crawl spaces, basements, and attics.
Local building authorities commonly offer checklists to verify code compliance — review the Philadelphia example here.
At Local Energy Audits, we utilize thermal imaging equipment, caulk, and spray foam to identify and fix air leaks during testing./li>
Over 90% of cases result in a passing score within two hours, along with complete permit documentation.

Preparing for a Blower Door Test in Bethany Beach, DE

As part of preparing for blower door test in Bethany Beach, DE, we power down the HVAC system along with kitchen and bathroom exhaust fans. Next, we do a complete walkthrough to ensure all exterior doors and windows are sealed — including those opening to garages, unfinished basements, or areas beyond 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. When the house is depressurized, outside air begins entering faster, exposing hidden leaks more effectively. A thermal imager helps highlight problem zones by detecting temperature variations in walls, ceilings, and areas connected to unconditioned spaces. Our team brings chalk, spray foam, and weatherstripping supplies to every job, enabling us to collaborate with homeowners or contractors to seal visible air leakage areas immediately. After sealing, we perform a follow-up test to determine if the desired blower door score meets the efficiency standards required in Bethany Beach, DE.

Blower Door Test for Contractors in Bethany Beach, DE

Contractors scheduling blower door test in Bethany Beach, DE often see that homes with proper insulation can correct minor air leaks while testing is underway. Using easy-to-apply materials like chalk and spray foam, we can correct small leaks or gaps during the test itself. In over 90% of cases, we successfully reach a passing blower door test score within two hours and hand over all necessary paperwork for immediate permit closure.

888 213-3975

Schedule Your blower door test in Bethany Beach, DE

Get dependable, efficient, and certified blower door test in Bethany Beach, DE performed by our qualified and experienced experts. Whether you’re improving comfort as a homeowner or completing a project as a contractor, we guarantee every test is performed with accuracy and full energy code compliance.

📞 Call 888-213-3975 ✉️ Contact Us