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.

184-missing-insulation-ir11

Courtesy of MoistureView.com

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 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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November 6, 2008

:311 Humidistat

Filed under: :311 Humidistat — Tags: , , , , , , — John Banta @ 12:22 am

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.

1:5:10:311 EcoTip: By using a humidistat – bathroom vent fans can be programed to turn on when elevated moisture levels are present to help prevent condensation and mold from forming on windows and other surfaces.

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 Additional Information:

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May 26, 2008

:147 Water Heater Flue

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

1:5:10:147 EcoTip: Make sure your gas water heater is properly vented. Over time the flue vent pipes can rust out or get knocked loose. Its important that your water heater be vented according to code and the manufacturers instructions.

waterheaterflue.jpg 

This water heaters flue pipe got knocked loose so that it was venting carbon monoxide into the living space.

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Additional Information

Suggested Reading – :114

 Carbon monoxide (CO) is a colorless, odorless gas which at high levels can cause serious illness and death. CO alarms are widely available and should be considered a back-up to BUT NOT A REPLACEMENT for proper installation, use, and maintenance of fuel-burning appliances. CO alarms are designed to warn you of any unusual build-up of CO in your home.  – EPA

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May 6, 2008

:127 Fresh Air

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

1:5:10:127 EcoTip: A fresh air supply is important to help prevent back-drafting (:113). Rather than leaving a vent open to the outside continually, the Cape Damper can be installed through a wall to allow air to flow in only one direction when needed but to also prevent back-drafting should a dangerous negative pressure develop.

Credit: http://www.tamtech.com/cape_damper.htm

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 Additional Information

The Cape Damper can be mounted through the wall to allow fresh air to enter, or as an exhaust damper for exhaust fans or a clothes drier. Since it doesn’t have spring loaded flaps, it won’t clog with lint, but can prevent clothes dryer back-drafting.

If it is being used for allowing fresh air to enter, it will need a screen added to help prevent insect and rodent entry.

specifications: cdf.07.pdf

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