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depiction:


AWl 06 b Double T-beam outside wall, rear ventilation

Wall: exposed to outside air – back-ventilated (BG1) – IBO benchmarks 2012
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0,117 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)4
A+
mass 91,2 kg/m²
PENRT 616 MJ/m²
GWP total -70,6 kg CO2/m²
AP 0,203 kg SO2/m²
no. type layer (from inside to outside) d
cm
λ
W/mK
R
m²K/W
ΔOI3
pts/m²
1 homogene Schichthomogene Schicht Gypsum fibreboard (1125 kg/m³) 1,25 0,400 0,03 6
2 homogene Schichthomogene Schicht Gypsum fibreboard (1125 kg/m³) 1,25 0,400 0,03 6
3 inhomogene Schichtinhomogene Schicht inhomogeneous (parts horizontal) 5,00      
    56,3 cm (90%) Isolena Schafwolle, Optimal, 18 kg/m³ 5,00 0,043 1,16 1
    6,3 cm (10%) Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 5,00 0,120 0,42 0
4 homogene Schichthomogene Schicht OSB boards (650 kg/m³) 1,80 0,130 0,14 4
5 inhomogene Schichtinhomogene Schicht inhomogeneous (parts vertical) 4,00      
    57,5 cm (92%) Cellulose vertical cavity wall insulation (54 kg/m³) 4,00 0,041 0,98 1
    5 cm (8%) OSB boards (650 kg/m³) 4,00 0,130 0,31 1
6 inhomogene Schichtinhomogene Schicht inhomogeneous (parts vertical) 22,00      
    61,7 cm (99%) Cellulose vertical cavity wall insulation (54 kg/m³) 22,00 0,041 5,37 7
    0,9 cm (1%) Plywood and veneer timber for interior use (675 kg/m³) 22,00 0,160 1,38 1
7 inhomogene Schichtinhomogene Schicht inhomogeneous (parts vertical) 4,00      
    57,5 cm (92%) Cellulose vertical cavity wall insulation (54 kg/m³) 4,00 0,041 0,98 1
    5 cm (8%) OSB boards (650 kg/m³) 4,00 0,130 0,31 1
8 homogene Schichthomogene Schicht Holzfaser halbhart (Plywood and veneer timber for interior use (600 kg/m³)) 1,60 0,120 0,13 7
9 inhomogene Schichtinhomogene Schicht inhomogeneous (parts vertical) 5,00      
    53,1 cm (85%) Vertical air layer, horizontal heat flow 45 < d <= 50 mm 5,00 ¹ ¹ ² 0
    9,4 cm (15%) Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 5,00 ¹ ¹ ² 0
10 homogene Schichthomogene Schicht Timber (525 kg/m³ - e.g. larch) - planed, technically dried 2,50 ¹ ¹ ² 1
    Rsi / Rse = 0,130 / 0,130  
    R' / R'' (max. relative error: 1,8%) = 8,719 / 8,405  
    building element 48,40   8,562 36

¹ not relevant
² layer is OI-relevant from BG1
³ U value (Heat transfer coefficient) calculated according to ÖNORM EN ISO 6946.
4 For the OI class, the U-value of the component is taken into account in addition to the ecological key figures