THERMAFIBER FireSpan products are designed to provide life saving fi re protection in curtain wall and perimeter fi re
containment systems. These products are noncombustible, moisture-resistant, noncorrosive, nondeteriorating, mildewproof
and vermin-proof. FireSpan 40 & 90 provide thermal insulation, fi re protection, acoustical and vapor control in many
different fi re containment assemblies of 1, 2, and 3-hr ratings.