Blower Door Test in New Milford, NJ

How Is A Blower Door Test Conducted?

In preparation for blower door test in New Milford, NJ, all exterior entry points are sealed, and interior doors are left open to allow consistent air circulation. One central exterior door is chosen, where an adjustable aluminum frame and durable fabric panel are securely installed. Once the frame is in place, a calibrated fan is used to bring the home’s pressure down to 50 Pascals — about the same as a 20 mph wind on the structure.

When air is pulled from the home, outside air finds its way in through cracks and unsealed openings. Using an advanced nanometer, we evaluate the pressure difference between the fan system and the home’s interior environment. These figures are calculated into air changes per hour (ACH), reflecting how well the home prevents air loss and maintains efficiency in NJ conditions.

What Is A Passing Blower Door Test Score?

In New Milford, NJ, energy efficiency standards for homes are based on the 2015 International Energy Conservation Code (IECC) or more recent updates approved by the jurisdiction. In most cases, passing the blower door test means reaching 3 air changes per hour or less, proving efficient home sealing. Achieving this standard in your blower door test in New Milford, NJ lowers utility bills and guarantees adherence to local code requirements.

Why Do I Need A Blower Door Test?

NJ, along with many city governments, enforces the IECC, which requires blower door test for residential projects after construction or renovation. We work closely with home builders, contractors, and homeowners who need blower door test in New Milford, NJ to ensure compliance and successful project completion. You may be required to perform a duct leakage test if HVAC components are situated outside the home’s thermal envelope. Learn more about energy code compliance.

Homeowners gain major advantages from blower door test in New Milford, 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, typically lasting only a few hours, offers a long-lasting impact on your home’s performance, efficiency, and comfort across NJ’ seasons.

How To Pass A Blower Door Test:

• Anticipate potential air leaks before testing begins.
• Use high-quality air barrier materials like Tyvek or Zip Sheathing and confirm all seams are perfectly taped.
• Apply insulation of the correct R-value and make sure it fits snugly in all areas 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 every transition point between conditioned and unconditioned environments, including attics, crawl spaces, and basements.
• Local jurisdictions frequently publish compliance checklists — the Philadelphia version can be downloaded here.
• Our team at Local Energy Audits employs thermal imaging, caulk, and spray foam to locate and repair leaks efficiently 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.