11218156

Paragraph Number

60

In one embodiment, the insulation layer 304 provides thermal insulation to retain heat generated by the resistive element 208 beneath the thermal cover 300. In one embodiment, the insulation layer 304 is a sheet of polystyrene. Alternatively, the insulation layer may include cotton batting, Gore-Tex®, fiberglass, or other insulation material. In certain embodiments, the insulation layer 304 may allow a portion of the heat generated by the resistive element 208 to escape the top of the thermal cover 300 to prevent ice and snow accumulation on top of the thermal cover 300. For example, the insulation layer 304 may include a plurality of vents to transfer heat to the top layer 302. In certain embodiments, the thermal insulation layer 304 may be integrated with either the first outer layer 302 or the second outer layer 306. For example, the first outer layer 302 may comprise an insulation fill or batting positioned between two films of nylon.

Added by DJM 2 2021