Blower Door Test in Blue Bell, PA

How Is A Blower Door Test Conducted?

For accurate blower door test in Blue Bell, PA, technicians close all exterior openings and keep interior doors open to balance airflow throughout the house. A single main exterior door is fitted with an adjustable aluminum frame and attached fabric panel to begin the setup. The mounted calibrated fan depressurizes the building to 50 Pascals, a condition similar to the effect of a 20 mph wind.

When air is drawn out by the fan, outdoor air seeps in through unsealed joints and hidden cracks. Using a highly accurate nanometer, we compare the fan-induced pressure to the natural air pressure inside the home. The data is converted into air changes per hour (ACH), identifying how tightly sealed and energy-efficient the house is in PA.

What Is A Passing Blower Door Test Score?

Homes in Blue Bell, PA are typically required to follow the 2015 International Energy Conservation Code (IECC) or the most recent version adopted locally. For most regions, achieving 3 air changes per hour or less on a blower door test ensures that the home is properly energy efficient. Achieving this standard in your blower door test in Blue Bell, PA lowers utility bills and guarantees adherence to local code requirements.

Why Do I Need A Blower Door Test?

PA, along with many city governments, enforces the IECC, which requires blower door test for residential projects after construction or renovation. We often work with home builders, contractors, and homeowners requiring blower door test in Blue Bell, PA to meet local energy codes and obtain permit approval. A duct leakage test is often required whenever ducts or HVAC units are found outside the building’s thermal envelope. Learn more about energy code compliance.

With blower door test in Blue Bell, PA, homeowners can detect where energy is being wasted. As the fan depressurizes the house, leaks are revealed, highlighting areas for sealing and savings. blower door test in Blue Bell, PA provides homeowners with clear insights into energy loss. When the fan creates pressure differences, leaks are exposed, allowing for easy detection and repair. Although it’s a short process, a blower door test produces a long-lasting impact by improving comfort and lowering energy costs throughout PA’ climate extremes.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Employ an appropriate air barrier system such as Tyvek or Zip Sheathing and verify that each seam has been correctly taped.
• Use insulation featuring the proper R-value and verify complete, gap-free coverage across 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.
• 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, our team delivers a passing score in less than two hours and completes the necessary permit paperwork.