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Regional validity

Scope

solid wood construction
Cross-section of standard configuration

solid wood 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 sheet metal roofing on structured separation layer 7800 A1
B 24,0 spruce wood formwork 0,120 50 450 1,600 D
C 80,0 spruce wood counter battens (40/80) 0,120 50 450 1,600 D
D 0,5 sarking membrane sd ≤ 0,3m 1000 E
E 24,0 planking spruce wood full formwork 0,120 50 450 1,600 D
F construction timber (80/..; e=800) 0,120 50 450 1,600 D
G Cellulose fibre [040; 50] 0,040 1 50 2,000 E
H 0,2 sealing sheet (air tight)
I 120,0 cross laminated timber 0,130 50 500 1,600 D

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]
sdmhbo02-00 F
G
180,0
180,0
construction timber
Cellulose fibre [040; 50]
30 0,19 adequate 41 (-1,-6) 38,76 105,0
sdmhbo02-01 F
G
200,0
200,0
construction timber
Cellulose fibre [040; 50]
30 0,18 adequate 42 (-1,-6) 39,20 106,8
sdmhbo02-02 F
G
240,0
240,0
construction timber
Cellulose fibre [040; 50]
30 0,15 adequate 43 (-1,-6) 40,08 110,4

Last update 07.05.2020/hfa.plb