Heated gutters prevent ice dams when plugged in and used properly. Roof heating cable multiplier Eave overhang Multiply the roof length by the appropriate multiplier in the table below based on the eave overhang and roof type.Īdd the gutter and downspout length if desired. To determine how much heat tape or cable you need for your roof: Frequently asked questions How much heat tape do I need for my roof? To save on energy costs, unplug manual heating cables during warm weather and install a snow and ice sensor to automatically turn the cables on and off during the winter. How much electricity does roof heat cable use?Ī roof heat cable uses 5 to 8 watts per linear foot per hour in electricity. In comparison, a snow rake costs $40 to $120 and physically remove snow without using electricity. To save energy, choose self-regulating cables or turn heat cables on and off as needed. The cost to run roof heating cables is $40 to $200 per month, depending on local electricity rates. Heated gutters and downspouts provide roof drainage and help prevent ice dams. New gutters cost $4 to $8 per linear foot or $600 to $1,600 total installed. Thermostat – An automatic cable control thermostat costs $40 to $120 and may be added to a manual roof heat cable to save electricity.Īdding heat cable to existing gutters costs $2 to $15 per linear foot or $400 to $1,400 total installed. Roof insulation – Attic insulation costs $1 to $4 per square foot installed and may decrease snow accumulation and energy costs. Roof repair – After ice dam or snow damage, roof repair costs $800 to $2,500,depending on the extent of the damage. Roof type / overhang width – A roof with dormers, valleys, and longer eaves requires more heat cable and costs more than a simpler roof.Īccessibility / steep roof – A steep roof, no internal roof access, or multiple stories may increase labor costs. Labor cost – Labor prices increase based on the roof size, accessibility, season, and local rates. Heating cable placement / pattern – Most heat cable is attached to the roof in a zig-zag pattern, which melts more snow but increases material costs. The following factors affect the cost to install a roof heating cable: Some heat tapes and wires are suitable for warming pipes but not roofs or gutters. However, heat tape is flat instead of rounded. Heating cable is also called heat tape because their function and cost are similar. Roof heating cable is also called heat wire, de-icing cable, or roof ice cable. Cost of roof heating cables by tape type Tape typeĪdjusts heat output based on outside temperature
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