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depiction:


DAh 01 b Solid wood flat roof, non-ventilated

Ceiling, roof: flat or pitched roof exposed to outside air – not back-ventilated – heat flow ascending (BG1) – IBO benchmarks 2012
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0,096 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)³
A++
mass 282,6 kg/m²
PENRT 869 MJ/m²
GWP total -195 kg CO2/m²
AP 0,247 kg SO2/m²
no. type layer d
cm
λ
W/mK
R
m²K/W
ΔOI3
pts/m²
1 homogene Schichthomogene Schicht Fillings made of sand, gravel, grit (1800 kg/m³) 6,00 0,700 0,09 ¹ 1
2 homogene Schichthomogene Schicht Dichtungsbahn PE (Polyethylene (PE) sealing sheeting) 0,20 0,500 0,00 ¹ 7
3 homogene Schichthomogene Schicht Insulation cork (130 kg/m³) 38,00 0,045 8,44 13
4 homogene Schichthomogene Schicht Dampfbremse PE (Polyethylene (PE) vapour brake) 0,02 0,500 0,00 ¹ 1
5 homogene Schichthomogene Schicht Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 20,00 0,120 1,67 -4
6 homogene Schichthomogene Schicht Gypsum fibreboard (1125 kg/m³) 1,25 0,400 0,03 6
7 homogene Schichthomogene Schicht Gypsum fibreboard (1125 kg/m³) 1,25 0,400 0,03 6
    Rsi / Rse = 0,100 / 0,040  
    R' / R'' (max. relative error: 0,0%) = 10,404 / 10,404  
    building element 66,72   10,404 29

¹ layer is OI-relevant from BG1
² U value (Heat transfer coefficient) calculated according to ÖNORM EN ISO 6946.
³ For the OI class, the U-value of the component is taken into account in addition to the ecological key figures