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Example for other Roof Areas:
Other problem areas of the roof, not previously described, can also be equipped
with a heating cable to prevent ice formation. The triangle layout, like the one
used for the roof edge, can also be used for installation in these problem areas.
When dealing with the problem areas, the height of the triangles may be great-
er than those on the roof edge. The height of the triangle should not exceed
20-feet.
Plan the layout of the cable in the gutters and drainage pipes.
For each area of the roof where the heating cable is installed, the correspond-
ing gutter and drainage pipe (if any) must also be lined with a heating cable.
After placing the cable on the roof edge, it will need to be installed in the op-
posite direction in the gutter. For the drainage pipes, install the cable all the
way down the pipe and back up along the inside.
If the cable is not long enough, you can install it only one-way, down the inside
of the pipe. The cable should end at the bottom of the drainage pipe to prevent
the formation of ice.
Figure 8. Cable installed along the roofing line in the gutters and drainage pipes
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