The interplay of door and wall is crucial to the success of the solution. The functional performance of a door must be assessed in the context of the wall being used. Each wall has different properties, which in turn impact on the level of the functional door. Fire-rated, smoke-tight or acoustic-rated properties are proven by a test in the respective wall.
The function for this type of wall is only approved once the test has been successful. More information on the minimum requirements and descriptions of approved wall types can be found here.