ROOFING PRODUCT INCLUDING A HEATER

摘要

A roofing product can include a heater. In an embodiment, the heater can have different areas that have different heat flux capacities, different portions having heater elements of different lengths or a combination thereof. The roofing product can be installed so that an area of the roof that has a higher heat load, such as near an eave and a valley of the roof, can receive more heat. In another embodiment, the roofing product includes an overhang section that includes at least a portion of the heater. The roofing product can be installed, and the overhang section can be coupled to an object that extends beyond an edge of the roof or over a plane defined by a roof. Many different manufacturing techniques can be used to form the heaters.

主权项

1. A roofing product comprising:
a substrate; and a heater disposed along a principal surface of or within the substrate, wherein the heater includes:
a first area including a first portion of the heater, wherein the first area has a first heat flux capacity, and the first portion includes a first heater element having a first length and a first resistivity: anda second area including a second portion of the heater, wherein the second area has a second heat flux capacity, and the second portion includes a second heater element having a second length and a second resistivity,wherein:
the first heat flux capacity is different from the second heat flux capacity;the first length is different from the second length;the first resistivity is different from the second resistivity; orany combination thereof.