Insulation Materials Long ago there were several insulation materials available: Rockwool, Vermiculite, Fiberglass, Cellulose, Mineral-Wool, all sorts of stuff. Over the years we’ve seen many come and go; they were found to be dangerous, ineffective or impractical.
With the combination of fiberglass and resin the gas content of the material was replaced by plastic. This reduced the insulation properties to values typical of the plastic, but now for the first time the composite showed great strength and promise as a structural and building material.
Mineral wool insulation (also called rock or slag wool insulation): Made from rock, blast furnace slag, and other raw materials which are melted and spun into fibers to resemble the texture of wool. Mineral wool comes in batts, rolls or loose-fill forms.
Foam polystyrene can be more than 95 percent air and is widely used to make home and appliance insulation, lightweight protective packaging, surfboards, foodservice and food packaging, automobile parts, roadway and roadbank stabilization systems and more.
Polyurethane is formed by mixing an isocyanate, such as methylene diphenyl diisocyanate (MDI)with a polyol blend. These components are mixed to form a rigid, cellular foam matrix. The resulting material is an extremely lightweight polymer with superior insulating properties.