Multipurpose Homasote is ideal for sound control and thermal insulation in floors, walls, ceilings and roofs. A uniform material with no knotholes, voids or splinters, Homasote is lightweight, clean, and easy to cut and work with. Unlike concrete, Homasote does not crack or "dust up" when a building shifts or settles. There is no set-up time required, and it can be applied by carpenters.