23 Turning the cable on and off 23 Checking operation and condition of cable 24 Resetting circuit breaker/replacing blown fuse 24 Off-season instructions 24 Removing the cable 25 APPENDIX BASIC INFORMATION ABOUT ICE DAM FORMATION AND PREVENTION 26 °STELPRO LIMITED WARRANTY...
It may also result in property damage from ice dams. Read and follow the instructions in this manual. If you have questions, contact °STELPRO for assistance. Give this manual to anyone who will be using this cable, including future users/homeowners.
Do not use this de-icing cable for any other purposes, such as to melt snow on sidewalks or protect pipes from freezing. °STELPRO offers other products designed for these purposes. See your local dealer or contact °STELPRO.
DETERMINING WHAT AREAS NEED CABLE In general, the cable should be installed on roof areas where ice dams are likely to form. Depending on sun exposure, prevailing wind direction and roof shape, the susceptible area may be the entire roof edge, or it may be specific areas, such as underneath sky- lights, in roof valleys or around dormers.
SCRG cable cannot be used on slate, stone, metal and ceramic roofs. These types of roofs require special consideration. Visit www.°STELPRO.com for more information. If you are unsure if your roof, gutters, and downspouts meet these requirements, call a professional roofing contractor.
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9. The use of a properly located receptacle will also eliminate the need for an exten- sion cord. °STELPRO recommends you not use an extension cord with this cable, as this may increase the risk of fire or electric shock.
PLANNING Before laying out and attaching the cable to your roof, it is important to plan how the cable will be arranged. To prevent ice dams, the cable pattern must be arranged so that it routes melt water to flow from “warm areas” of the roof through the “cold areas” and down to the ground.
CHOOSE A STARTING POINT The cable starting point must not be near any entrance areas, sidewalks, etc. to avoid contact by persons or equipment (such as yard tools) that can move or damage the cable. You may also want to avoid having the cable power cord routed in front of windows or high-visibility areas of your home.
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For problem areas that are more than 20 ft (6 m) from the roof edge, commercial grade de-icing cable should be installed by a professional installer. Contact °STELPRO for assistance. Triangle base (15 in. – 38 cm) TRIANGLE PATTERN NEAR SKYLIGHT...
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For problem areas that are more than 20 ft (6 m) from the roof edge, commercial grade de-icing cable should be installed by a professional installer. Contact °STELPRO for assistance. CABLE PATTERN IN A VALLEY CABLE PATTERN AROUND A DORMER...
PLAN THE CABLE PATTERN FOR THE GUTTERS AND DOWNSPOUTS For each roof area that has cable, the corresponding gutter (if present) must also have cable. After arranging the cable along the roofline, the cable will need to be installed back along the treated roofline through the gutter. Plan to install the cable down into and back up the inside of any downspouts along the way.
CONSIDER THE NUMBER OF CABLES TO USE If separate areas are being treated, it may be more practical to use separate cables. When planning your cable arrangement, consider where each cable will be routed given its length. It is also possible to use one common cable for both areas; the cable can be routed from one area to the next either in the gutter or horizontally attached to the shingles.
HANDLING WARNING: Improper handling can damage the cable and may result in ice dam formation or injury or death from electric shock or fire. Properly handle and care for the cable: • Do not step on the cable. • Do not bend cable more sharply than required for use with the clips included with the kit and according to the installation instructions.
Cable Cable Shingle POWER CORD HEATED PORTION OF CABLE spacers clips If any components of this kit are missing or damaged, contact °STELPRO for assistance. TOOLS REQUIRED POWER CORD POWER CORD HEATED PORTION OF CABLE Marking chalk Tape measure Tongs...
WARNING: Use only the clips and spacers provided to attach the cable. Do not attempt to staple or nail the cable or attach the cable with materials such as glue, caulk or adhesive. While the cable is being laid-out on the roof, loose attachment of the clips and spacers is recommended in case G THE CABLE CONT PAGE 10.
ATTACHING THE CABLE TO YOUR ROOF At tops of triangles along edge of roof Taking care not to tear the shingle tab, lift it gently and evenly using a putty knife. Lift the shingle just enough to insert the clip. Press shingle back down firmly. Note: Shingles will reseal in hot weather.
Near skylights Triangles of cable are attached near skylights the same way as shown in Figures 12, 13 and 14. If the skylight is high up the roof (making the triangles larger than 3 ft [90 cm] in height), clips must also be attached every 3 ft (90 cm) up the height of the roof, as shown in Figure 15.
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For a gutter-only installation Use a “double-run” of cable in the gutters and downspouts. Figure 21 shows a gutter installed with gutter spikes. Route the cable over and under the gutter spikes to keep the cable suspended off of the bottom of the gutter. Spacers should be attached every 12 in.
ROUTING THE CABLE IN DOWNSPOUTS “Along run” downspouts For downspouts that are along the run of the roofline being treated, the cable must be routed down and back up the inside of the downspout. Do not wrap the cable around the downspout or otherwise attempt to attach it to the outside.
“End of run” downspouts If a downspout exists at the end of the run of the roofline being treated, it is recommended the cable be routed down the inside of the downspout and back up. Do not wrap the cable around the downspout or attempt to attach it to the outside. Pull cable into downspouts using weighted string.
In addition to proper installation, proper use of the cable is needed to maintain a path for melted snow or ice to drain all the way to the ground. WARNING: Failure to use and maintain the cable according to these instructions may result in ice dam formation or injury or death from fire electric shock.
TURNING THE CABLE ON AND OFF During the winter season, turn on the cable only when conditions are favourable for ice dams to form. The cable should only be operated when: • Snow or ice on the roof is melting, and •...
RESETTING CIRCUIT BREAKER/REPLACING BLOWN FUSE At any time during operation, if the circuit breaker trips or the fuse blows, stop using the cable. Unplug and inspect the entire cable for damage when conditions allow. Remove and dispose of the cable if it shows any evidence of damage or deterioration, including cuts, brittleness, charring, cracking, discolored surfaces or bare wires.
APPENDIX BASIC INFORMATION ABOUT ICE DAM FORMATION AND PREVENTION How ice dams form Snow and ice on a roof can thaw because of heat loss through the roof due to inadequate roof venting and/or insufficient ceiling insulation. In these cases, the roof surface above heated areas of the building is warm enough to melt the snow, while the roof surface above the overhang is cool enough to refreeze this melt water as...
(other than that prescribed by °STELPRO) or a use other than that for which the unit was designed; 3) a natural disaster or an event out of °STELPRO’s control, including, but not limited to, hurricanes, tornadoes, earthquakes, terrorist attacks, wars, overvoltage, flooding, water damages, etc.
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