Blower Door Test in Coatesville, PA

Find and fix air leaks while improving performance through reliable blower door test in Coatesville, PA. Our certified team helps homeowners, builders, and contractors locate air leaks, enhance indoor comfort, and meet all PA energy efficiency requirements.

What Is A Blower Door Test?

A blower door test is designed to measure air changes per hour inside homes, promoting a balance between airtightness and necessary ventilation. Excessive air changes force constant reheating or recooling, driving up energy use and reducing overall home efficiency. Excessive air changes can also lead to drafts and discomfort caused by air leaks, along with moisture, condensation, and mold problems inside the home. A blower door test in Coatesville, PA detects early-stage air leaks, enabling effective energy use and a more durable, comfortable living environment.

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How Is A Blower Door Test Conducted?

To complete blower door test in Coatesville, PA, all exterior openings are sealed, and interior doors are kept open to ensure equal airflow throughout the property. A main exterior door is selected for setup, with an adjustable aluminum frame and fitted fabric panel placed in position. A calibrated fan is placed within the frame and operated to depressurize the structure to 50 Pascals — nearly the same as a 20 mph wind hitting the building.

As the fan removes air from inside, exterior air flows in through leaks and gaps in the building envelope. With a nanometer, we record and compare the pressure produced by the fan to the pressure inside the house. 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?

Construction in Coatesville, PA must comply with the 2015 International Energy Conservation Code (IECC) or updated versions recognized by local authorities. To meet efficiency standards in most areas, homes should record 3 air changes per hour or less on a blower door test. Complying with this benchmark during a blower door test in Coatesville, PA helps cut energy expenses and meet local building regulations.

Why Do I Need A Blower Door Test?

PA and several of its municipalities comply with the IECC (International Energy Conservation Code), mandating blower door test for new or updated homes. We specialize in helping home builders, contractors, and homeowners with blower door test in Coatesville, PA to achieve energy code compliance and finalize inspections. 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.

There are many benefits of blower door test in Coatesville, PA for homeowners. When the fan lowers indoor pressure, leaks become visible, allowing for easy identification of inefficiencies and energy-saving opportunities. Taking only a few hours, a blower door test creates a long-lasting impact by improving comfort, performance, and efficiency in PAhomes.

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.
Use insulation with the right R-value and confirm it is properly installed throughout 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.
Eliminate air leaks by sealing all openings between conditioned areas and unconditioned spaces, including basements and attics.
Local code departments usually provide a checklist to assist with compliance — see the Philadelphia example here.
With the help of thermal imaging tools, caulk, and spray foam, Local Energy Audits efficiently detects and seals leaks on-site./li>
We achieve a passing score within two hours in over 90% of cases and promptly issue the documents to finalize your permit.

Preparing for a Blower Door Test in Coatesville, PA

We start the process of blower door test in Coatesville, PA by ensuring all heating, air conditioning, and exhaust systems are turned off. Next, we check the home thoroughly to ensure all exterior openings — even those leading to garages or unfinished basements — are securely closed and within the thermal envelope. Once all openings are sealed, we place the blower door frame and fan in a central exterior door. The fan then lowers the pressure to 50 Pascals for precise leakage measurement. Once the structure is depressurized, outside air penetrates more actively, exposing any leaks and weak points. With a thermal imager, we identify cold or warm spots in walls, ceilings, and other surfaces that reveal air leakage into unconditioned spaces. Using chalk, spray foam, and weatherstripping, we assist homeowners and contractors in addressing visible air leakage areas on-site. Once sealing work is done, we immediately retest to verify that the desired blower door score has been achieved for compliance with local standards in Coatesville, PA.

Blower Door Test for Contractors in Coatesville, PA

For contractors overseeing blower door test in Coatesville, PA, most properly insulated homes can manage small on-site repairs during testing. With readily available sealing materials like chalk and spray foam, we can repair minor leaks or gaps on the spot. In more than 90% of cases, our team secures a passing blower door test score within two hours and provides full documentation to complete the permit without any delay.

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Schedule Your blower door test in Coatesville, PA

Receive professional, accurate, and certified blower door test in Coatesville, PA from our highly skilled technicians. Whether you’re a homeowner upgrading comfort or a contractor closing permits, we carry out each test with accuracy and in full compliance with energy regulations.

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