Skip to main content
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 - variable building material
E - variable insulation material on-roof insulation
F 0,2 sealing sheet (air tight)
G 120,0 cross laminated timber 0,130 50 500 1,600 D

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]
sdmhbo01-00 D
E
22,0
180,0
softboard [045; 250] - rigid underlay
wood-fibre insulation board [0,040; R=200]
30 0,16 adequate 46 (-1,-6) 66,50 124,3
sdmhbo01-01 D
E
22,0
200,0
softboard [045; 250] - rigid underlay
wood-fibre insulation board [0,040; R=200]
30 0,15 adequate 47 (-1,-6) 69,66 128,3
sdmhbo01-02 D
E
22,0
240,0
softboard [045; 250] - rigid underlay
wood-fibre insulation board [0,040; R=200]
30 0,13 adequate 48 (-1,-6) 75,99 136,3
sdmhbo01-03 D
E

180,0
sarking membrane sd ≤ 0,3m
mineral wool [040; 130]
Underlay laminated on insulation board 30 0,18 adequate 39 (-1,-6) 98,27 111,7
sdmhbo01-04 D
E

200,0
sarking membrane sd ≤ 0,3m
mineral wool [040; 130]
Underlay laminated on insulation board 30 0,16 adequate 40 (-1,-6) 105,27 114,3
sdmhbo01-05 D
E

240,0
sarking membrane sd ≤ 0,3m
mineral wool [040; 130]
Underlay laminated on insulation board 30 0,14 adequate 41 (-1,-6) 119,28 119,5

Last update 07.05.2020/hfa.plb