Blown insulation can be any fiber insulation material that is blown into place, usually in a wall cavity or attic. The most common blown insulation materials are cellulose and fiberglass, but mineral wool, sheep’s wool, and other materials are also used.
Cellulose insulation has several environmental advantages. Most products contain 75%–85% recycled newspaper (usually post-consumer) and borate and/or ammonium sulfate flame retardants, which are benign in comparison with other common flame retardants.
Products in Blown Insulation
Advanced Fiber Technology, Inc.
Guardian Building Products
Johns Manville Corporation
The Perlite Institute Inc.