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Regional validity


Building physical assessment

Fire performance REI 30
maximum span = 4 m; maximum load Ed,fi = 7,92 kN/m²  
Classified by IBS  
Thermal performance U 0,16 W/(m2K)
Diffusion adequate
Calculated by HFA  
Acoustic performance Rw (C;Ctr) 52 dB (-2; -8)
Ln,w (Cl)
Assessed by IFT  
Mass per unit area m 150,5 kg/m2
Calculation based on gypsum plaster board type DF GKF
solid wood construction
Cross-section of standard configuration

solid wood construction
Standard configuration

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

Thickness [mm] Building material Thermal performance Reaction to fire­
λ μ min – max ρ c
A concrete roof tile /tiled roof 2100 A1
B 30,0 spruce wood battens (30/50) 0,120 50 450 1,600 D
C 50,0 spruce wood counter battens (minimum height 50 mm) 0,120 50 450 1,600 D
D sarking membrane sd ≤ 0,3m 1000 E
E 180,0 ? insulation placed on top of the rafters 0,035 1 100 1,030 A2
F sealing sheet
G 100,0 cross laminated timber BBS 5 layer 0,130 50 470 1,600 D

Ecological rating (per m2 construction area)

Database ecoinvent

OI3Kon 36,9
Calculated by IBO  

[kg CO2 Äqv.]
[kg SO2 Äqv.]
PEI ne
[kg PO4 Äqv.]
[kg C2H4 Äqv.]
-26,2 0,271 1,241,9 1.269,7 0,041 0,053

Source: Saint-Gobain Rigips Austria GesmbH

Last update 28.09.2017/hfa.plb