A roof cleaning system for removing snow from a roof includes a crane that has a boom and a man box that is coupled to the boom. The crane positions the man box above a roof of a building. A sweeper is coupled to the man box and the sweeper sweeps snow from the roof. The sweeper is operationally coupled to the crane.

A snow clearing machine is configured for operation on flat roofs and is designed to not damage the roof on which it is operated. The snow clearing machine is configured to leave a layer of snow beneath it, clearing the remainder, so that the machine avoids contact with the roof. As such, the snow clearing machine may be used on a flat roof or other fragile surface without damaging it.

A washing apparatus for viewing an obscured surface to be cleaned via a camera includes a base tube defining a base channel and an extension tube defining an extension channel. The extension tube is removably attachable to the base tube such that the base channel and the extension channel are in fluid communication with each other. A cleaning attachment is removably attachable to either one of the base tube and the extension tube and may be shaped to allow fluid to flow from the base channel or the extension channel and toward a surface to be cleaned. A camera is attached to the extension tube and is oriented to face the cleaning attachment when the cleaning attachment is attached to the extension tube.

A surface cleaning apparatus includes an elongated pole having a longitudinal axis extending along an end portion remote from an opposite end held by a user. A first surface engaging utensil and a second surface engaging utensil each are joined to the end portion. Each of the surface engaging utensils extend radially with respect to the longitudinal axis from the end portion. At least one of the surface engaging utensils is rotatable about the longitudinal axis and is adjustably fixable at any one of a plurality of different angular positions with respect to the end portion.