Small-Market Products

Wood shavings, granulated cork, and expanded polystyrene beads are loose-fill insulation products that are seldom seen today. For example, wood shavings, although rarely used today, were once a very popular insulation product because of their wide availability and low cost. Shavings often were treated with lime or other chem­icals to increase resistance to water absorption, fire, and fungal growth. This insulation product is still a common sight in older homes across North America.