Overview of the reaction to fire requirements for facade cladding indicated in the revision in their end-use condition
| Building type | Tall buildings | Medium-sized buildings | Low buildings Non-self-sufficient (type 1) | Low buildings Non-self-sufficient (type 2 and 3) |
|---|---|---|---|---|
| Cladding* | A2-s3,d0 | B-s3,d1 | C-s3,d1 | D-s3,d1 |
* The doors, facade decorations, joints and technical equipment in the facade (e.g. signboards, lighting devices, air-conditioning grids, drain pipes, plant holders and wall penetrations for heating installations) are not subject to the aforementioned requirements, provided that their total visible surface makes up less than 5% of the visible surface of the facade concerned.
I have to comply to reaction to fire class D-s3,d1
I must fulfil the requirements of reaction to fire class B-s3,d1 of C-s3,d1
LOW-RISE BUILDINGS
(h < 10 m)
For low-rise buildings (height < 10 m), the requirements vary based on the building's intended use:
non-self-reliant users (type 1; e.g. hospitals, prisons and nurseries): the requirements for the reaction to fire class of the wooden facade cladding is C-s3,d1
sleeping self-reliant users (type 2; e.g. hotels and apartment buildings) and awake users (type 3; e.g. office buildings, shops): the wooden facade cladding must be in reaction to fire class D-s3,d1.
HIGH-RISE BUILDINGS
(h > 25 m)
The regulations contain stricter requirements for high-rise buildings (height > 25 m). Thus, the wooden facade cladding must meet the requirements of reaction to fire class A2-s3,d0 according to the NBN EN 13501-1 (6) standard or by means of a LARGE-SCALE TEST (for example SP FIRE 105).
MEDIUM-RISE BUILDINGS
(10 m ≤ h ≤ 25 m)
For medium-rise buildings ranging from 10 to 25 meters in height, the wood facade cladding must at least meet the requirements of reaction to fire class B-s3,d1.
It is important to note that these requirements apply to timber facade claddings in their end-use condition and not to the cladding as such.
