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depiction:


AWl 04 b Laminated wood post outside wall, no rear ventilation

Wall: exposed to outside air – not back-ventilated (BG1) – IBO benchmarks 2012
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0,120 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)³
A+
mass 94,7 kg/m²
PENRT 841 MJ/m²
GWP total -60,5 kg CO2/m²
AP 0,186 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 plasterboard (900 kg/m³) 1,50 0,250 0,06 4
2 homogene Schichthomogene Schicht Gypsum plasterboard (900 kg/m³) 1,50 0,250 0,06 4
3 homogene Schichthomogene Schicht Schafwolle Dämmfilz zw. Schwingbügel (Isolena Schafwolle, Optimal, 18 kg/m³) 6,00 0,043 1,40 1
4 homogene Schichthomogene Schicht Dampfsperre PE (Polyethylene (PE) sealing sheeting) 0,02 0,500 0,00 ¹ 1
5 homogene Schichthomogene Schicht Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 2,00 0,120 0,17 0
6 inhomogene Schichtinhomogene Schicht inhomogeneous (parts vertical) 30,00      
    56,3 cm (90%) Hemp fibre insulation (41 kg/m³) 30,00 0,045 6,67 18
    6,3 cm (10%) Laminated timber, glued internal use (475 kg/m³ - e.g. spruce/fir) 30,00 0,120 2,50 5
7 inhomogene Schichtinhomogene Schicht inhomogeneous (parts horizontal) 2,00      
    56,5 cm (90%) Vertical air layer, horizontal heat flow 15 < d <= 20 mm 2,00 0,118 0,17 ¹ 0
    6 cm (10%) Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 2,00 0,120 0,17 ¹ 0
8 homogene Schichthomogene Schicht Windsperre PE, diffusionsoffen (Polyethylene (PE) sealing sheeting) 0,10 0,500 0,00 ¹ 4
9 homogene Schichthomogene Schicht Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 3,00 0,120 0,25 -1
10 homogene Schichthomogene Schicht Timber (525 kg/m³ - e.g. larch) - planed, technically dried 2,50 0,130 0,19 1
additional materials (thermally not relevant): (quantity per m² building element)
2,3 kgC-Profile (Steel sheet, galvanised)6
    Rsi / Rse = 0,130 / 0,040  
    R' / R'' (max. relative error: 1,5%) = 8,426 / 8,180  
    building element 48,62   8,303 43

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