Thermafiber 
Thermafiber mineral wool insulation provides superior thermal, sound, and fire protection in commercial construction applications. Our mineral wool insulation contains over 75% post-industrial recycle content and is capable of withstanding temperatures in excess of 2000°F. Thermafiber products are incorporated in hundreds of tested and approved construction assemblies for fire rated construction and improved sound control.
Firestop Contractors International Association
FCIA announces new Contractor Qualification Programs from FM & UL. FM Global's Approvals Division, (FM) introduced "FM 4991, Standard for Approval of Firestop Contractors" in 2001. Underwriters Laboratories, Inc., (UL)Announced the UL Qualified Firestop Contractor Program, (2007). Add "FM 4991" and "UL Qualified Firestop Contractor" to contractor qualification for an audit-tested firm installing Life Safety Firestops into Effective Compartmentation Systems.