Blower Door Test in Conshohocken, PA

How Is A Blower Door Test Conducted?

For blower door test in Conshohocken, PA, all outside doors and windows are closed properly, and inside doors are kept open to balance air pressure throughout the space. A central exterior door is used as the setup point, where an adjustable aluminum frame and fabric panel are positioned. The mounted calibrated fan depressurizes the building to 50 Pascals, a condition similar to the effect of a 20 mph wind.

As the fan expels air, the resulting pressure draws outdoor air in through hidden leaks and unsealed joints. Using an advanced nanometer, we evaluate the pressure difference between the fan system and the home’s interior environment. Measurements are expressed as air changes per hour (ACH), showing how effectively the home retains conditioned air in the PA environment.

What Is A Passing Blower Door Test Score?

In Conshohocken, PA, energy efficiency standards for homes are based on the 2015 International Energy Conservation Code (IECC) or more recent updates approved by the jurisdiction. An acceptable blower door test result in most areas is 3 air changes per hour or less, demonstrating solid energy performance. Achieving this goal during your blower door test in Conshohocken, PA promotes energy savings and demonstrates adherence to local building rules.

Why Do I Need A Blower Door Test?

Across PA, the IECC (International Energy Conservation Code) is adopted by the state and local jurisdictions, requiring blower door test on residential constructions and renovations. Our professionals frequently support home builders, contractors, and homeowners who need blower door test in Conshohocken, PA to comply with energy codes and finalize projects. In some cases, a duct leakage test is needed if ducts or HVAC systems lie outside the home’s thermal envelope. Learn more about energy code compliance.

Performing blower door test in Conshohocken, PA allows homeowners to identify and fix leaks. The test makes air infiltration visible, uncovering opportunities to reduce energy loss. This simple test, completed in a few hours, creates a long-lasting impact on your home’s efficiency and comfort during PA’ hot and cold months.

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.
• Fit insulation with the correct R-value and make sure it’s installed without voids across the entire building envelope.
• Seal all penetrations in exterior walls using caulk or spray foam.
• Ensure doors and windows are properly installed, caulked, and weather-sealed.
• Close any gaps connecting conditioned and unconditioned spaces, such as those leading to basements, attics, or crawl spaces.
• Building departments in many areas share checklists for verifying compliance — download the Philadelphia version here as a sample.
• Our professionals at Local Energy Audits use caulk, spray foam, and thermal imaging to detect and seal leaks on-site for better efficiency./li>
• Over 90% of the time, we complete testing with a passing score in two hours or less and handle all permit paperwork on-site.