Pipe Insulation Reduce costly heat loss from hot water pipes and prevent freezing and sweating of cold water pipes. TUBULAR PIPE INSULATION Made of closed cell polyethylene foam, they are pre-slit to snap onto pipes quickly and easily. In sizes to fit pipes of various diameters. Also in self-sealing style. R–value increases with increased wall thickness. PIPE WRAP KITS Simple, effective way to insulate pipes of all diameters. Ideal for over wrapping electric heat cables. Consists of 1/2" thick fiberglass plus plastic vapor barrier. (Aluminum foil/plastic foam combination also available). ELECTRIC HEAT CABLES A built-in thermostat automatically turns these cables on and off to help keep your water pipes from freezing down to 38 degrees below zero F. ELECTRIC ROOF DE–ICING CABLES By keeping your gutters and downspouts flowing freely even in sub-zero temperatures, they help prevent roof damage and leaking.