In Germany, fire dampers must fulfil requirements for the fire behaviour of their building materials! According to the model administrative regulation Technical Building Regulations (MVV TB), edition 2017/01 of 31/08/2017 in conjunction with the model guideline on fire protection requirements for ventilation systems (MLüAR), version 2005 - last amended on 11/12/2015, only fire dampers that are essentially made of non-combustible building materials and fulfil at least class A2 - s1, d0 according to DIN EN 13501-1 may be used.
Fire behaviour is not covered by the harmonised product standard DIN EN 15650:2010. It cannot therefore be included as an essential characteristic in the declaration of performance and is not part of the CE marking.
The German Institute for Building Technology (DIBt) is no longer permitted to issue or extend additional general technical approvals (abZ) for fire behaviour for fire dampers covered by the harmonised product standard DIN EN 15650. They may no longer be required as mandatory proof of suitability for national construction projects. This also affects the general building approval Z-56.4212-993 for the FK90, FR90, FK90K and BV90 fire dampers.
Instead, DIBt continuously publishes a "priority list" of CE marked construction products for which there are gaps or shortcomings in the harmonised product standards. Fire dampers are listed under number 83 of the priority list (as of 25 February 2019) with a note that the proof of fire behaviour is not covered by the harmonised product standard DIN EN 15650:2010. Additional proof is required to ensure structural safety, which can be provided in a number of ways.
In accordance with the priority list, the Braunschweig Materials Testing Institute has issued certificate MPA-BS 6000/593/18 dated 9 November 2018 for the FK90, FR90, FK90K and BV90 fire dampers, confirming that they are essentially made of non-combustible materials and meet at least class A2-s1, d0. The previous general building approval Z-56.4212-993 was used as technical documentation.
