Is self regulating cable good for clearing snow off my roof?

Self Regulating cable is not designed for snow load removal. It is designed for deicing in scuppers, roof overhangs, gutters, downspouts, trench drains, etc.

Once we installed the Self-Regulating cable and plugged it in, we noticed it was heating. Doesn't this self-regulate and not turn on until is is cold?

Self-regulating cable heats to the specified watts per linear foot when energized

Why is self-regulating cable used on metal roofs versus constant wattage cable?

Two good reasons for this: Constant Wattage cables maintain a consistent heat output regardless of the surrounding temperature. Metal roofs, being highly conductive, can cause rapid temperature fluctuations which can lead to overheating and potential damage to the cable's insulation, potentially causing a fire hazard. The UL approved installation method requires self-regulating cable for metal roofs. If not installed per UL guidelines, there is no listing and thus no warranty.

FP-SR-240-08-0250 | Support | WarmlyYours Canada

Q: Can I run Roof and Gutter Deicing Cable off an extension cord?

NEVER use an extension cord. If you do not understand the electrical requirements needed regarding the electrical receptacle plug, contact your local electrical inspector or a licensed electrician. The reason for this is due to safety and performance of the system. Extension cords are often not properly selected and will degrade, potentially leading to electrical shorts or other hazards such as fire. Roof de-icing cables are designed to be connected directly to a properly rated outlet, and the length and type of extension cords may not be rated for the same power load, leading to insufficient power supply, potential damage to the cables, and further safety risks including their ability to prevent ice dams on your roof.

Support Questions

Showing 10 of 13 questions

Do radiant heating products have polarity?

Electric-resistance heating cables and systems have no polarity. This includes all current WarmlyYours heating elements.

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Why a GFEP (GEFP, RCCB, or heat trace circuit breaker) and not a GFCI breaker for WarmlyYours outdoor deicing and snow melting systems?

GFEP is the National Electric Code (NEC) required protection for fixed outdoor deicing and snow-melting equipment, which may be accomplished by using circuit breakers equipped with ground-fault equipment protection (GFEP) of 30 mA. It is important to understand that this required equipment protection is NOT the same as a 5 mA GFCI used for personal protection.

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Can I run Roof and Gutter Deicing Cable off an extension cord?

NEVER use an extension cord. If you do not understand the electrical requirements needed regarding the electrical receptacle plug, contact your local electrical inspector or a licensed electrician.

The reason for this is due to safety and performance of the system. Extension cords are often not properly selected and will degrade, potentially leading to electrical shorts or other hazards such as fire. Roof de-icing cables are designed to be connected directly to a properly rated outlet, and the length and type of extension cords may not be rated for the same power load, leading to insufficient power supply, potential damage to the cables, and further safety risks including their ability to prevent ice dams on your roof.

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Can self-regulating cable be installed on EPDM or rubber roofs?

WarmlyYours self-regulating roof and gutter de-icing cable can be used on rubber or EPDM (Ethylene Propylene Diene terpolyMer) roofs.

The primer that WarmlyYours sells is specifically for adhering clips to EPDM or rubber roofing.

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The neutral on GFEP/GEFP/RCCB 240V breakers is not used, why do I need this then?

A 2 pole single-phase 240V circuit works by continuously monitoring the current flowing through both hot wires of the circuit. If it detects even a slight imbalance between the current on each hot wire (indicating a ground fault), it will quickly trip, cutting off power to the circuit. Essentially, it compares each leg of the 240V circuit and trips if they are not precisely equal.

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What is the lifespan of WarmlyYours roof and gutter deicing cables?

WarmlyYours roof and gutter deicing self-regulating cable loses its power ramp-up ability at about 5-10 years, but it will still work at its rated wattage for years. Properly installed WarmlyYours roof and gutter constant wattage cable usually lasts well beyond its warranty period.

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What type of roofs can I use WarmlyYours Self-Regulating cable on?

WarmlyYours self-regulating cable is suitable for use on standard asphalt or wood shingles, angled cedar, tile or terra cotta, slate, flat membrane-type (rubber or EPDM) roofing, and metal roofing. For attaching, the same clips are used for both slate and cedar roofing. Always check local codes for approved methods of heating roofs and gutters.

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Can I install a roof and gutter deicing system on a 'ribbed' metal roof?

WarmlyYours does not recommend installing de-icing systems on ribbed metal roofs. This is because ribbed metal roofs typically aren’t flat enough to attach the mounting pads to properly connect the cables with the roof.

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