Technical Standards

Fiberboard products are manufactured to the various types and grades defined by the ASTM C208 (Standard Specification for Cellulosic Fiber Insulating Board) and/or CAN/ULC-S706 (Standard for Wood Fibre Insulating Boards for Buildings). Copies of ASTM C208 may be obtained from the American Society of Testing and Materials (ASTM), 100 Barr Harbor Dr., W., Conshohocken, PA 19428-2959. Phone 610.832.9500 / Fax 610.832.9555  *Contact ASTM*  Copies of CAN/ULC-S706 may be obtained from Underwriters of Canada Standards Department 200-400 Laurier Avenue West, Ottawa, Ontario K1R 7X6. Phone 1.866.9373.4 / Fax 613.231.5977  *Contact ULC*