The main types of shed construction are metal sheathing over a metal frame, plastic sheathing and frame, all-wood construction (the roof may be asphalt shingled or sheathed in tin), and vinyl-sided sheds built over a wooden frame.. Shed roofing materials tend to be different from materials that roof houses. they are cheaper, less durable, more about function than aesthetics, and easier to install. they are cheaper, less durable, more about function than aesthetics, and easier to install.. Storage shed roof design putting a metal roof on a shed how to build outdoor steps with wood blocks storage shed roof design how to construct a shed door wood storage shed with windows used wood 8x8 shed buying a modern shed