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Heating Cable Installation
Raychem-IM-H58067-IceStopRoofGutterDeIcingCOM-EN 18/01
• Place heating cable around perimeter.
• Trace valleys from perimeter to drain.
• Extend heating cable into internal downspouts at
least 12 inches (30 cm) into heated space.
• External downspouts and scuppers must be
treated carefully. A path must be provided for the
valley/perimeter heating cable to the point of dis-
charge (see Figure 15 on page 27).
• To avoid damage, do not walk on the heating
cable.
Sloped Roof without Gutters
When gutters are not used on a building, ice dams
may form at the roof edge. To maintain a continuous
path for melt water to run off, a drip loop or heated
drip edge may be used. Drip loops and drip edges
allow water to drip free of the roof edge.
Route the heating cable as shown in Figure 8 or
Figure 9 below and follow the appropriate attach-
ment recommendations in “Attachment Methods‚”
page 29. Additional heating cable may be needed
for valleys.
2"–3"
(5–8 cm)
Figure 8: layout for heated drip loops