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depiction:

AWm 07 b 2-layer honeycomb brick outside wall, no rear ventilation

 Wall: exposed to outside air – not back-ventilated (BG1) – IBO benchmarks 2012
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0,134 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)²
B
mass 399,8 kg/m²
PENRT 1009 MJ/m²
GWP total 71,7 kg CO2/m²
AP 0,232 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 Clay plaster 1,50 0,810 0,02 1
2 homogene Schichthomogene Schicht Vertically perforated brick 17 cm to 38 cm + normal mortar for brickwork (825 kg/m³) 25,00 0,270 0,93 36
3 homogene Schichthomogene Schicht Loose-fill insulation from expanded perlite (100 kg/m³) 36,00 0,060 6,00 17
4 homogene Schichthomogene Schicht Vertically perforated brick < 17 cm + normal mortar for brickwork (800 kg/m³) 12,00 0,340 0,35 17
5 homogene Schichthomogene Schicht CR lime cement finish plaster (1800 kg/m³) 1,50 1,050 0,01 3
6 homogene Schichthomogene Schicht Silicate plaster (without synthetic resin additive) 0,50 0,800 0,01 3
    Rsi / Rse = 0,130 / 0,040  
    R' / R'' (max. relative error: 0,0%) = 7,488 / 7,488  
    building element 76,50   7,488 77
¹ U value (Heat transfer coefficient) calculated according to ÖNORM EN ISO 6946.
² For the OI class, the U-value of the component is taken into account in addition to the ecological key figures