Abstract: A roof rock spreader has a rock hopper and a motive drive system. An optical system detects areas already treated and areas still in need of treatment. Location aware sensors detect present location and speed of travel. A control system determines proper application paths and locations, and controls application of roof rock to provide an even and consistent layer. When the rock hopper empties, the roof rock spreader will move to a refill location. A laser alignment system detects and confirms proper hopper positioning prior to automated refill. During the refilling procedure, wheel load sensors monitor hopper fill. Rock hopper refill may be limited, to accommodate gross vehicle weight limitations of a particular roof. A communication system provides remote viewing through the optical system or other camera to confirm proper function, provides remote emergency shut-off, and enables a plurality of like spreaders to work in unison.

Abstract: An edge safety system comprises at least one edge safety support and a tensioned cable. The edge safety support comprises an edge clamp having a first contact, and a bifurcated clamp leg supporting a second contact and a third contact opposed to said first contact. A clamp driver is configured to generate a clamping force. A standard has a first terminus and is coupled adjacent to the first terminus to and rises from the edge clamp and extends therefrom to a top elevation, and has at least one rope guide. A tensioned cable passes through the at least one rope guide. An optional elevation pole has a foot that is configured to engage with a roof, a riser rising from the foot, and at least one rope guide affixed to the riser, the tensioned cable passing through the at least one elevation pole rope guide.

Abstract: A wheeled conveyance straddles and squeezes a parapet or similar vertical wall from both the inside and outside vertical faces. Side wheels may be adjusted to be closer together or farther apart to accommodate the thickness of the wall being straddled. The conveyance traverses the parapet along the top edge, and at least one fastener driver suspended from the carriage faces one or both of the inside and outside vertical faces at some preferably adjustable distance below the top edge of the parapet. While the conveyance traverses the parapet, an actuator selectively and repeatedly actuates the fastener driver(s). Various sensors and controls are provided that permit the speed, fastener spacing, and travel distance to be adjusted. Position awareness and visual, auditory, and radio communications may optionally be employed.

Abstract: A spray machine autonomously traverses a roof while selectively spraying and rolling adhesive across the roof. To navigate the roof, the spray machine is most preferably fitted with GPS and other sensors to detect roof features and already coated adhesive. In one embodiment the spray machine has a spray and roll apparatus supported on an undercarriage and propelled by a drive train. Each of the spray nozzles and rollers are preferably supported upon respective boom arms, and reciprocate along the longitudinal axis of the boom arm. Each of the spray and roller boom arms have a longitudinal axis that extends transverse to the spray machine ordinary forward direction of travel. In another embodiment, combination spray and roller boom arms are hinged to the undercarriage, and so may be lifted from horizontal to vertical to avoid obstacles.

Abstract: A roof rock spreader has a rock hopper and a motive drive system. An optical system detects areas already treated and areas still in need of treatment. Location aware sensors detect present location and speed of travel. A control system determines proper application paths and locations, and controls application of roof rock to provide an even and consistent layer. When the rock hopper empties, the roof rock spreader will move to a refill location. A laser alignment system detects and confirms proper hopper positioning prior to automated refill. During the refilling procedure, wheel load sensors monitor hopper fill. Rock hopper refill may be limited, to accommodate gross vehicle weight limitations of a particular roof. A communication system provides remote viewing through the optical system or other camera to confirm proper function, provides remote emergency shut-off, and enables a plurality of like spreaders to work in unison.