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5. HEATING CABLE INSTALLATION
WARNING
Failure to follow the rules of handling, location and installation according to
this manual may result in injury, or death from electric shock or fire.
5.1 Location of the Heating Cable
Before laying and attaching a heating cable to your roof, it is important to plan
how it will be located. To prevent the formation of ice deposits, the layout
scheme of the cable should be arranged so that it directs the flow of water
without the formation of areas where it may freeze.
In general, you need to use heating cables in the following areas: on the spec-
ified roof areas (along the roof line; along the roof area; in problem areas such
as skylights), in nearby gutters and drainage pipes.
WARNING
To avoid overheating of the cable and not to increase the risk of fire or electric
shock, the heating cable should not pass through the inside of any part of the
building, including the attic. For example, do not install a cable in a drainpipe
that has a part passing through a building. In addition, it is forbidden to install
the cable where its elements can be heated by heat sources, such as an exhaust
hole or chimney. Install the cable at least 12-inches apart from such heat sources.
Select a starting point. The starting point of the cable should not be close to
any entrance areas, sidewalks, etc., to avoid contact with people or equipment
that could move or damage it. If the electrical outlet is already installed in an
appropriate place next to the roof eave then this determines your choice. If that
is not the case, select a starting point and install an electrical outlet.
Plan the cable layout for your roof. Cable layout methods for various roof areas
are presented below.
A heating cable does not have to be installed in all these places. Only install
the cable in areas that have been exposed to icing in the past.
Tip: For easier roof installation, mark the layout of where the cable and attach-
ment points will be with chalk prior to installing. It can also be useful to make a
drawing of your roof and layout diagrams of the cable on paper.
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