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What is an Envelope Leakage Test?

 

Envelope Leakage Testing is another term used for Blower Door Testing.

 

An envelope leakage test is performed with a blower door. The blower door consists of a powerful, calibrated fan, installed in an exterior doorway which creates a pressure difference between the inside and outside of the building, thereby forcing air through the breaches and penetrations of the building envelope. The blower door system measures the amount of air needed to create a change in pressure by calculating the air flow through the fan and its effect on the air pressure inside the building. The less air needed through the fan, the more airtight the building.

 

The pressure created by the use of the blower door makes building envelope leakages easier to find using chemical smoke, or an infrared camera. Blower door calculations are very valuable in estimating annual average and designed air infiltration rates. These can be used to help in gauging the  size of heating and cooling equipment and for determining the necessary installation of mechanical ventilation for moisture control, proper combustion appliance ventilation and air quality purposes.

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Who Provides Envelope Leakage Test Services in Central Florida?

 

Energy By Design provides Envelope Leakage Testing in Central Florida. As BPI Certified Building Analysts and Certified RESNET Energy Raters, we are qualified to perform Envelope Leakage Testing and provide testing documentation required by the Florida Energy Code.

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To schedule a blower door test call: 407-450-0295