Retractable shade and method for assembling the same

A method for assembling a roller shade system, said method comprising:

• coupling a shade to a roller, wherein the roller is configured to selectively move the shade between a deployed position and an open position;
• positioning a roller housing substantially circumscribing the roller and the shade and forming a gap along a longitudinal axis of the roller between the roller housing and any portion of the shade rolled on the roller, the roller housing disposed in a cavity defined by an inner wall of a vehicle and an outer wall of the vehicle, wherein the cavity is exposed to freezing temperature during at least a portion of operation of the vehicle wherein the roller housing substantially circumscribes the roller and the shade;
• and
• coupling a heating mechanism to an at least partially circumscribing portion of an outer surface of the roller housing, the heating mechanism for conductively heating the roller housing to non-conductively increase a temperature of the roller and shade above a freezing temperature to prevent ice buildup on the roller, the roller housing, the shade, and within the cavity.

A door system for use in a vehicle, the door system comprising:

• a door coupled to the vehicle;
• a roller;
• a shade coupled to said roller, wherein said roller is configured to selectively move said shade between a deployed position and an open position;
• a roller housing, the roller housing substantially circumscribing the roller and shade and forming a gap along a longitudinal axis of the roller between the roller housing and any portion of the shade rolled on the roller, the roller housing located in a cavity defined between an inner wall of said door and an outer wall of said door, wherein said cavity is exposed to freezing temperature during at least a portion of operation of the vehicle;
• and
• a heating mechanism, coupled to an at least partially circumscribing portion of an outer surface of the roller housing, the heating mechanism for conductively heating the roller housing to non-conductively increase a temperature of the roller and shade above a freezing temperature to prevent ice buildup on the roller, the roller housing, the shade, and within said cavity.