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 Plastic roofing membrane or E
A sheet metal roofing 7800 A1
B 24,0 spruce wood closed cladding without spacing of cladding boards 0,120 50 450 1,600 D
C 80,0 spruce wood counter battens (ventilation) 0,120 50 450 1,600 D
D 15,0 fibreboard (MDF) 0,140 11 600 1,700 D
D sarking membrane sd ≤ 0,3m 1000 E
E construction timber (80/*; e=800) 0,120 50 450 1,600 D
F - variable insulation material
G vapour barrier sd≥ 1m 1000
H 50,0 spruce wood cross battens (50/80;a=400) 0,120 50 450 1,600 D
I - variable insulation material or without insulation in type 01
J 25,0 gypsum fibre board (2x12,5 mm) or 0,320 21 1000 1,100 A2
J 25,0 gypsum plaster board type DF (2x12,5 mm) 0,250 10 800 1,050 A2

Variations of building components

Thickness of layer Note 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]
fdrhbi08b-00 E
F
I
200,0
200,0
50,0
construction timber
mineral wool [040; ≥16; <1000°C]
mineral wool [040; ≥16; <1000°C]
389,0 60 0,18 adequate 50 (-3,-8) 40,73 47,6
fdrhbi08b-01 E
F
I
200,0
200,0
construction timber
mineral wool [040; ≥16; <1000°C]
mineral wool [040; ≥16; <1000°C]
389,0 I=without insulation 60 0,21 adequate 48 (-3,-8) 37,85 47,0
fdrhbi08b-02 E
F
I
220,0
220,0
50,0
construction timber
mineral wool [040; ≥16; <1000°C]
mineral wool [040; ≥16; <1000°C]
409,0 60 0,17 adequate 50 (-2,-7) 41,98 48,9
fdrhbi08b-03 E
F
I
240,0
240,0
50,0
construction timber
mineral wool [040; ≥16; <1000°C]
mineral wool [040; ≥16; <1000°C]
429,0 60 0,16 adequate 51 (-2,-7) 43,24 50,2
fdrhbi08b-04 E
F
I
200,0
200,0
50,0
construction timber
mineral wool [035; 50; <1000°C]
mineral wool [035; 50; <1000°C]
389,0 60 0,16 adequate 51 (-3,-8) 68,84 55,1
fdrhbi08b-05 E
F
I
200,0
200,0
50,0
construction timber
mineral wool [038; ≥33; ≥1000°C]
mineral wool [038; ≥33; ≥1000°C]
389,0 60 0,18 adequate 50 (-2,-7) 50,59 51,4
fdrhbi08b-06 E
F
I
200,0
200,0
50,0
construction timber
cellulose fibre [040; E]
cellulose fibre [040; E]
389,0 60 0,18 adequate 50 (-3,-8) 31,51 56,2
fdrhbi08b-07 E
F
I
200,0
200,0
50,0
construction timber
sheep wool [0,041; R=26]
sheep wool [0,041; R=26]
389,0 60 0,20 adequate 50 (-4,-9) 33,47 47,6

Last update 07.05.2020/hfa.plb