Skip to main content
Regional validity

Scope

timber frame construction
Cross-section of standard configuration

timber frame construction
Standard configuration

Note

The design of the under-roof construction and of the counter-battens have to be specified according to the roof pitch and the national requirements.

Register of building materials used for this application, cross-section (from top to bottom)

Thickness [mm] Building material Thermal performance Reaction to fire­
λ μ min – max ρ c
A concrete roof tile 2100 A1
B 30,0 spruce wood 0,120 50 450 1,600 D
C 50,0 spruce wood 0,120 50 450 1,600 D
D sarking membrane sd ≤ 0,3m 1000 E
E 20,0 softboard [045; 250] - rigid underlay 0,045 5 250 2,100 E
F 400,0 Light composite wood-based beams (I-beams) with solid wood flanges (60/45) and hard board intermediate web (≥ 6,7) 0,400 20-30 800 1,700 D
G - variable insulation material
H 15,0 OSB 0,130 200 600 1,700 D
I 27,0 metal rail
J gypsum plaster board type DF 0,250 10 800 1,050 A2
J gypsum fibre board 0,320 21 1000 1,100 A2

Variations of building components

Thickness of layer Fire performance Thermal performance Acoustic performance Eco Sustainability Mass
Thickness [mm] Building material Σ REI U [W/(m²K)] Diffusion Rw (C,Ctr) ΔOI3 m [kg/m²]
sdshzi01a-00 G
J
J
400,0
13,0
13,0
cellulose fibre [040; 50]
gypsum plaster board type DF
gypsum fibre board
60 0,10 adequate 46 35,36 86,5
sdshzi01a-01 G
J
J
400,0
13,0
13,0
Wood fibre insulation [039; 45]
gypsum plaster board type DF
gypsum fibre board
60 0,10 adequate 46 40,83 84,6
sdshzi01a-02 G
J
J
400,0
13,0
13,0
mineral wool [034; 18; <1000°C]
gypsum plaster board type DF
gypsum fibre board
60 0,09 adequate 44 51,75 74,1
sdshzi01a-03 G
J
J
400,0
25,0
25,0
cellulose fibre [040; 50]
gypsum plaster board type DF
gypsum fibre board
60 0,09 adequate 48 37,67 96,5

Last update 07.05.2020/hfa.plb