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As seen on Good Morning America - Raychem Roof Ice Melt System


Roof Ice Melt Systems

Raychem Roof Ice Melt(RIM) Systems are the original, concealed roof de-icing solution since 1993. The RIM systems mechanically protect the self-regulating cable, provide high power output along the entire roof edge and result in an aesthetically pleasing and safe roof de-icing solution. RIM Systems are the world leading solution in successfully preventing ice dam and icicle formations in various commercial and residential facilities. RIM Systems specifically target the ice dam and icicle prone areas of a roof regardless of the roof design, complexities, or snow load.

The success of eliminating ice dam and icicle problems has led architects and contractors to specify the RIM system for their projects. In addition, thousands of property owners have retrofitted their roofs with the RIM system. Over 1,000,000 feet (190+ miles) of roof eaves and valleys, throughout the world, are protected from ice dams and icicles with Raychem's Roof Ice Melt System.

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Ice dams and icicles occur as a result of:

  • Snow buildup on the roof

  • Heat loss from the building

    • Through insulation

    • Through chimneys

    • Through roof vents

  • Winter temperature fluctuations – freeze/thaw cycles

  • Solar heating during winter days with below freezing nights

As roof snow accumulation increases, ice dam and icicle formation likewise increase. Subsequent water ponding can lead to roof leaks, internal building damage and possible mold issues. Falling icicles can create lower roof damage, deck damage and people safety issues. Click here to learn more about roof designs for snow and ice.




  1. Winter storms build up snow on the roof.

  2. Heat from the building (through insulation, chimneys, and roof vents) and from the sun (solar gain) causes roof snowmelt.

  3. Melted snow runs down roof lines to valleys and eaves.

  4. The melted snow refreezes at the base of the valleys and at the roof eaves.

  5. As day/night time temperatures cycle up and down, the ice dams and icicles continue to grow.

  6. Icicles cause 'people and property safety' concerns.

Click here to learn more about how ice dams and icicles are formed.

View an informational video on how the Raychem Roof Ice Melt System efficiently and effectively prevents icicles and ice dams from building up on your roof eaves and valleys.


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