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Wishing to change the landing door of our apartment, we asked a large DIY area that we encrypted a door to about 1000 € stating that this type of door is new in this type of store. Do the landing doors have special features? Is it easy to replace an old landing door (type sheet + cardboard) by a thermal and sound insulating door?

Landing doors must meet a number of criteria specific to their use. In particular, they must isolate noise (an index of 25 dB is minimum and 35 to 45 dB ideal). Fire resistance is also very important (a fire resistance of 1/2 to 1 hour is necessary). For protection against theft, the door must have a A2P label with 1, 2 or 3 stars. Some doors are armored original. The actual replacement does not pose any particular problem, but it is often necessary to replace the frame (frame)

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