1:5:10:365 EcoTip Blog

February 11, 2008

:042 Duct Leakage

noc20070101_0146.jpg Fluke IR Fusion Source: Restoration Consultants www.moistureview.com

Suggested Review – :039, :040, :041

Today’s 1:5:10:365 Tip for becoming a better steward for our home and planet deals with finding ductwork leaks to prevent and energy waste and save money.

1:5:10:042 Tip: Thermal imaging and duct blaster testing are two techniques that can be used to identify duct leakage. When ducts leak into attic, crawlspaces or wall cavities, they waste energy by heating or cooling a space that is not occupied or supposed to be conditioned. Air conditioned air leakage into these unintended areas may result in moisture condensation and mold growth. Air pressure differences created by the leaks can suck or blow insulation, dust and other air pollutants into the occupied space.

Tomorrow I will talk about ways to correct duct leakage.

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Additional Information

inspect2.jpg Duct Blaster

Source: http://www.energystar.gov/index.cfm?c=behind_the_walls.btw_inspection

An energy audit using a duct blaster will tell you how much energy is being lost. A thermal imaging scan can indicate where the leaks are located. Thermal scans of the building envelope are best done when there is at least a 20 degree temperature difference between the inside and outside. Duct work evaluations can be done any time of year as long as the system is either heating or cooling.

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