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depiction:

ADh 01 b Solid wood ceiling above outside air, wet screed

 Floor: exposed to outside air – not back-ventilated – heat flow descending (BG1) – IBO benchmarks 2012
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0,110 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)³
A++
mass 306,6 kg/m²
PENRT 958 MJ/m²
GWP total -135 kg CO2/m²
AP 0,258 kg SO2/m²
no. type layer d
cm		 λ
W/mK		 R
m²K/W		 ΔOI3
pts/m²
1 homogene Schichthomogene Schicht Multi-layer parquet 1,20 0,160 0,08 ¹ 12
2 homogene Schichthomogene Schicht Adhesive - artificial resin 0,10 0,900 0,00 ¹ 2
3 homogene Schichthomogene Schicht Cement and cement flowing screed (1800 kg/m³) 5,00 1,100 0,05 8
4 homogene Schichthomogene Schicht Building paper 0,09 0,170 0,01 ¹ 0
5 homogene Schichthomogene Schicht Glass wool MW(GW)-W (32 kg/m³) 3,00 0,035 0,86 4
6 homogene Schichthomogene Schicht Chippings (lightly cement-bonded) 5,00 0,700 0,07 1
7 homogene Schichthomogene Schicht Dampfbremse PE (Polyethylene (PE) sealing sheeting) 0,02 0,500 0,00 ¹ 1
8 homogene Schichthomogene Schicht Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 16,00 0,120 1,33 -3
9 inhomogene Schichtinhomogene Schicht inhomogeneous (parts transverse) 16,00      
    56,3 cm (90%) Hemp fibre insulation (41 kg/m³) 16,00 0,045 3,56 9
    6,3 cm (10%) Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 16,00 0,120 1,33 0
10 inhomogene Schichtinhomogene Schicht inhomogeneous (parts along) 16,00      
    56,3 cm (90%) Hemp fibre insulation (41 kg/m³) 16,00 0,045 3,56 9
    6,3 cm (10%) Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 16,00 0,120 1,33 0
11 homogene Schichthomogene Schicht Windsperre PE, diffusionsoffen (Polyethylene (PE) sealing sheeting) 0,01 0,500 0,00 ¹ 0
12 homogene Schichthomogene Schicht Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 2,50 0,120 0,21 0
    Rsi / Rse = 0,130 / 0,040  
    R' / R'' (max. relative error: 2,5%) = 9,316 / 8,863  
    building element 64,92   9,089 44
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