Patent ID: 6192641
Filing Date: 2001-02-27
Classification: E04B

Abstract:
A method for constructing an expansion joint fire barrier for walls comprising the following steps:providing a sheet of fire rated insulation material, the insulation material comprising a backing and an insulation;wherein at least one of the backing and insulation has a sufficient thickness to prevent significant buckling of the insulation material when standing upright;identifying an expansion gap to be bridged by the sheet, the expansion gap comprising first and second walls separated by a gap;providing a first hollow in the first wall sized and dimensioned to slidingly receive at least a portion of the sheet of fire rated material, the first hollow having an opening adjacent the gap;supporting and positioning the sheet with at least one biasing element so that the sheet at least partially spans the gap,has a portion which is either within the first hollow or aligned with the opening of the first hollow,may slide into the first hollow for movement of the first and second walls which causes the gap to narrow,may slide out the first hollow for movement of the first and second walls which causes the gap to widen.