The use of high density mineral fiber board as a fire protection for steel beams, columns and decking has several advantages. It eliminates the need for temperature requirements often associated with conventional spray applied products. It can be used to expedite the “closing in” of a building without heating tenting and heating the building. It also works well in occupied spaces where remedial work is required and conventional spray is not a viable option. Mechanical rooms etc are also excellent applications for a mineral fiber board where a fire rating is required.