Deformation during the fire door test refers to the fire resistance test.
Steel fire doors are different from wooden fire doors. Generally speaking, you cannot control or limit the deformation, and you should consider tolerating the deformation. For example, fire-resistant glass expands after being heated, and sufficient deformation space should be left to meet its deformation requirements. .
For steel fire doors or wooden fire doors, first select the filling material with the smallest possible deformation to prevent the deformation of the filling material from increasing the amount of deformation. The wooden fire door must be equipped with a fire board, and the possibility of burning without a fire board is very small.
