For small Skylight applications Mariak Industries Inc. offers motorized and crank driven solutions. An “L” shaped 4 ½” by 4 ½”aluminum extrusion creates main body of the skylight and covers the back and bottom of the assembly. The inside portion on both sides of the extrusion is closed with the closure plate. The top portion of the assembly is covered with 5″ wide top plate. Two driving options are available to move roller shade back and forth. Motorized option uses AC motors while the manual option uses heavy duty crank mechanism with a 7:1 turning ratio and a detachable arm. Both options come with two-piece 2 ½” by 1″ side channels on both ends.

In the Standard Motorized Skylight offered by Mariak Industries Inc., a tubular AC motor is attached with motor brackets to the back wall of an “L” extrusion. An aircraft cable attached to the tube is guided through the pulleys into the side channels. The opposite end of the cable is attached to the shade hem bar. Cables are never visible during skylight operation. The shade material is wrapped on the tube on the opposite side of the assembly. A powerful spring assist keeps fabric in constant tension.