1:5:10:365 EcoTip Blog

November 13, 2008

:318 Predict Ice Dams

Take the 1:5:10:365 challenge: Do one thing – for 5 to 10 minutes – 365 days a year to make our home and planet environment better.

1:5:10:318 EcoTip: Thermal imaging can be used to predict locations on the roof where ice dams are likely to form. The thermal imaging camera is used to locate hot spots. These represent the areas where snow will melt. If the melted snow has to run down an area of roof where the water will refreeze, then the formation of an ice dam becomes more likely.


Courtesy of MoistureView.com


 Additional Information:

Suggested Review: :313, :317

The large blue area in the thermal image above represents a cold area with missing insulation where the attic eave vent is located. The heat from the house will escape upwards warming the underside of the roof. If snow is present the extra warmth may cause it to melt and run down the roof onto the cold overhang. If conditions are right the water will refreeze and form a dam that prevents subsequent water flowing downward from draining off the roof. This water can then migrate into the home. This thermal image can be used to predict that water from any ice dam that forms from this missing insulation is more likely to drain down into the wall cavity causing damage.

Tomorrow’s 1:5:10:365 EcoTip will show how this eave area could be insulated and ventilated at the same time.

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September 22, 2008

:266 Finding Moisture Pockets

Welcome to today’s 1:5:10:365 Tip for becoming a better steward for our home and planet environment.

1:5:10:266 EcoTip: Thermal imaging using an infrared camera can help identify materials that are wet after flooding or water intrusion. Depending on the nature of the damage – many materials that look dry may in fact be wet. Capillary action and movement of water vapor can cause secondary damage that goes well beyond where the action water flowed. A thermal imaging scan can quickly help identify areas for investigation with a moisture meter. This can help identify pockets of moisture that might otherwise be missed. 


Thermal Image of a wet wall courtesy of Restoration Consultants at www.moistureview.com


 Additional Information:

Suggested Review: :037, :256, :276, :258, :259, :260, :261, :262, :263, :264, :265

This is the eleventh in a series of EcoTips about working around buildings when participating in disaster recovery such as occurred with hurricane Katrina and is going on now with Ike. This information is timely since 2008 is the most active hurricane season since 2005 and many buildings are being damaged.


John Banta with Fluke thermal imaging camera from www.moistureview.com

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