Apparatus for enhancing reinforcing and firestopping around a duct extending through a structural panel

摘要: An angular flange for reinforcing and firestopping in the annulus between a structural panel such as wall, ceiling or floor duct extending therethrough. The prefabricated includes primary leg to be secured secondary approximately perpendicularly oriented relative thereto. Each sealing member of flexible intumescent paper positionable therealong facilitate therebetween. preferably including two panels at an obtuse angle with respect one another being become perpendicular responsive securement surrounding panel. One more uniquely designed corner brackets can included mounting adjacently positioned flanges selectively.