Blower Door Test in Sumneytown, PA

Maintain compliance with energy codes and reduce energy loss using expert blower door test in Sumneytown, PA. Our certified technicians support homeowners, builders, and contractors in finding hidden leaks, improving comfort, and ensuring compliance with PA energy codes.

What Is A Blower Door Test?

A blower door test provides accurate data on air changes per hour, showing how efficiently fresh air circulates through your space. When the air changes too often, energy efficiency drops since the system must continuously reheat or recool the air inside. When too much air is exchanged, it can cause drafts, reduce comfort, and create conditions for moisture buildup and mold. A blower door test in Sumneytown, PA helps pinpoint problem areas early, improving insulation performance, comfort, and home lifespan.

888 213-3975

What Our Clients Say

How Is A Blower Door Test Conducted?

In blower door test in Sumneytown, PA, every exterior door and window is shut, while interior doors stay open to allow uniform airflow inside the building. One main exterior door is identified, and an adjustable aluminum frame with a fabric panel is securely attached. A calibrated fan mounted on the frame reduces the home’s pressure to 50 Pascals, simulating the force of a continuous 20 mph wind.

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. The pressure data is turned into air changes per hour (ACH), a measure of how efficiently and tightly the home is sealed in PA.

What Is A Passing Blower Door Test Score?

Homes in Sumneytown, PA are typically required to follow the 2015 International Energy Conservation Code (IECC) or the most recent version adopted locally. Typically, a passing blower door test result is 3 air changes per hour or lower, which indicates good energy efficiency. Reaching this target in your blower door test in Sumneytown, PA helps maintain lower energy bills and fulfills local code obligations.

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 specialize in helping home builders, contractors, and homeowners with blower door test in Sumneytown, PA to achieve energy code compliance and finalize inspections. A duct leakage test may also be necessary if any ducts or HVAC systems are positioned outside the building’s thermal envelope. Learn more about energy code compliance.

Homeowners experience real energy benefits from blower door test in Sumneytown, PA. The fan’s depressurization highlights air leaks, helping identify inefficiencies that can be sealed for savings. A blower door test usually takes just a few hours but delivers a long-lasting impact on your home’s comfort, performance, and efficiency—particularly during PA’ hot summers and cool winters.

How To Pass A Blower Door Test:

Anticipate potential air leaks before testing begins.
Select a proper air barrier such as Tyvek or Zip Sheathing and ensure every seam is thoroughly taped for airtight sealing.
Ensure insulation with the specified R-value is properly installed and fitted throughout 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.
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.

Preparing for a Blower Door Test in Sumneytown, PA

To properly prepare for blower door test in Sumneytown, PA, the HVAC system and all bathroom and kitchen fans are turned off. We then perform a detailed walkthrough to verify that all exterior windows and doors are tightly shut, including any that lead to spaces beyond the thermal envelope. After sealing the home, the blower door fan is installed in a central exterior doorway and used to lower pressure to 50 Pascals to measure airflow and leakage effectively. When the house is depressurized, outside air begins entering faster, exposing hidden leaks more effectively. Using a thermal imager, we easily locate air leaks by noting temperature differences on walls, ceilings, and other surfaces adjacent to unconditioned spaces. Carrying chalk, spray foam, and weatherstripping materials, we work directly with homeowners or contractors to resolve visible air leakage issues during the visit. We can retest right after sealing to check whether the desired blower door score has been met, ensuring full compliance with Sumneytown, PA energy standards.

Blower Door Test for Contractors in Sumneytown, PA

Contractors booking blower door test in Sumneytown, PA can rest assured that most homes with professional insulation can easily handle small fixes during testing. Using readily available materials like chalk and spray foam, our team can seal small leaks and gaps on-site in minutes. In more than 90% of cases, we achieve a passing blower door test score within two hours and provide complete documentation to finalize the building permit without delay.

888 213-3975

Schedule Your blower door test in Sumneytown, PA

Experience prompt, professional, and certified blower door test in Sumneytown, PA from our knowledgeable team. Whether you’re a homeowner improving comfort or a contractor completing inspection requirements, our tests meet energy codes with careful attention to detail.

📞 Call 888-213-3975 ✉️ Contact Us