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Heating Cable Installation
Raychem-IM-H58067-IceStopRoofGutterDeIcingCOM-EN 18/01
Roof valleys
Ice dams may form at the valley on a roof where
two different slopes meet. To maintain a continuous
path for melt water, run the heating cable up and
down the valley as shown in Figure 10 and follow
the appropriate attachment recommendations in
“Attachment Methods‚” page 29. Additional heat-
ing cable may be needed for the roof surface, gut-
ters, and downspouts.
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Figure 10: layout for a roof valley
• Trace two-thirds of the way up each valley with
a double run of heating cable (loop up and back
once).
• The heating cable must extend into the gutter. If
you don’t have gutters, the heating cable should
extend over the edge 2 to 3 inches (5 to 8 cm) to
form a drip loop.
• For attachment methods, proceed to “Attachment
Methods‚” page 29.