Roofing: De-icing on the roof
Scott Gibson, Contributing Editor
Attach it to the lower edge of a roof or in roof valleys to melt snow and ice before it can build up and cause a problem. The cable will not remove ice and snow once it has accumulated. Its safe for metal and plastic gutters but should not be used on roofs made from wood shingles or rubber membranes, or on flat roofs.
ADKS-100 is a 20-foot length of cable that draws 100 watts of power (many other lengths also are available). The kit cost about $43 in October 2004.