Roof & Gutter De-Icing
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Designing an IceStop System
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IceStop System Components
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How IceStop works
•IceStop is meant to provide drain paths.
•The path must be continuous.
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Paths Must be Continuous
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Roof Terms
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Ice.. Dam…
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Fort Drum, NY
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Cold Roof ?
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How an ice dam forms
Roof Surface
Ice forming at roof edge
Snow Cover
Standing Water
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Ice movement on a roof
Dense Snow
Icicles form as snow moves downward
Standing Water
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IceStop on the roof edge
Snow Cover
Heating cable from roof should be attached to the run in the gutter to form a continuous path.
Snow Fence
Snow Cover
Ice will build up on vertical surface
Wind
Snow Fence
Drip loop extends over edge
if a gutter is not used.
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Design Steps
• Determine the cable layout for the roof, gutters, and downspouts
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Heating cable on a shingled roof
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Heating Cable Details
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Design Steps
•Determine the attachment methods you will use.
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Means of Attaching to a Roof
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Design Steps
•Select the type of control you will use.
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Typical Control Scheme
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Design Steps
•Select components and accessories.
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Design Steps
•Determine electrical requirements.
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What to look for at a job site
• Does the contractor understand the IceStop layout?
• Are the proper IceStop components being used?
• Is the heating cable being attached properly?
• Is the proper voltage being used (120VAC for GM1-X)?
• Does the contractor have a megger on site ?
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Detroit Airport, Detroit, MI
Fleet Center, Boston, MA
Toronto Trade Center, Toronto, ON
Big Gutter Anti-Icing
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Bear Stearns Building
New York, NY
Other Roof Safety Applications