Blower Door Test in Harvey Cedars, NJ

How Is A Blower Door Test Conducted?

In preparation for blower door test in Harvey Cedars, NJ, all exterior entry points are sealed, and interior doors are left open to allow consistent air circulation. A single main exterior door is fitted with an adjustable aluminum frame and attached fabric panel to begin the setup. 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. A sensitive device called a nanometer measures how the fan’s pressure relates to the home’s internal air pressure. These readings are then converted into the total number of air changes per hour (ACH), revealing how airtight the home is and how well it performs in the NJ climate.

What Is A Passing Blower Door Test Score?

Construction in Harvey Cedars, NJ must comply with the 2015 International Energy Conservation Code (IECC) or updated versions recognized by local authorities. In most locations, 3 air changes per hour or less is the standard blower door test result for efficient home performance. Achieving this standard in your blower door test in Harvey Cedars, NJ lowers utility bills and guarantees adherence to local code requirements.

Why Do I Need A Blower Door Test?

The State of NJ, along with its municipalities, observes the IECC requirements, mandating blower door test for newly constructed or updated homes. We often work with home builders, contractors, and homeowners requiring blower door test in Harvey Cedars, NJ to meet local energy codes and obtain permit approval. If any part of the HVAC system or ductwork sits beyond the building’s thermal envelope, a duct leakage test may be required. Learn more about energy code compliance.

Homeowners gain major advantages from blower door test in Harvey Cedars, NJ. As the fan depressurizes the home, incoming air through leaks becomes easier to detect, revealing problem spots and potential energy-saving improvements. A blower door test is quick to perform but offers a long-lasting impact on comfort, energy savings, and home efficiency across all NJclimates.

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 of the correct R-value and confirm that it’s tightly installed throughout every section 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 the transitions between conditioned and unconditioned zones, particularly around basements, attics, and crawl spaces.
• Many cities provide compliance checklists through their building departments — see the Philadelphia version here.
• With the help of thermal imaging tools, caulk, and spray foam, Local Energy Audits efficiently detects and seals leaks on-site./li>
• In most situations—over 90% of the time—we get a passing score within two hours and finalize all required paperwork.