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4
Attachment Methods
Raychem-IM-H58067-IceStopRoofGutterDeIcingCOM-EN 18/01
4.2
Roof Attachment Methods
Mechanical Attachment
One of the most common attachment methods is to
use a Raychem GMK-RC roof clip. It can be used on
all surfaces that can be nailed or screwed into.
Figure 16: GMK-RC mechanical attachment
• The GMK-RC roof clips are used to secure
IceStop heating cable. This multipurpose bracket
attaches with a screw, nail, or adhesive to many
types of roofs and gutters.
• After determining the heating cable layout, fasten
the clips to the roof before installing the heat-
ing cable in the bracket. If using nails or screws,
apply sufficient water-sealing material around
the clips and nails or screws to prevent roof
leaks.
• Thread the heating cable into the clips. Use addi-
tional clips wherever the heating cable may be
subject to abrasion from movement.
• Use pliers to close the clamps, but be careful not
to crush the heating cable.
• One box of 50 GMK-RC clips is sufficient to
attach the heating cable on 35 feet (11 m) of roof
edge using a serpentine layout. Your layout may
require additional clips.
• For layouts other than the standard serpentine,
use one clip for each 5 to 10 feet (1.5 to 3 m) of