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depiction:

GDm 02 b Reinforced concrete intermediate floor, spacer floor

Ceiling, roof: ceiling within heated residential and office unit not subject to a U-value requirement (BG1) – IBO benchmarks 2012
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mass 506,6 kg/m²
PENRT 644 MJ/m²
GWP total 30,8 kg CO2/m²
AP 0,176 kg SO2/m²
no. type layer d
cm		 λ
W/mK		 R
m²K/W		 ΔOI3
pts/m²
1 homogene Schichthomogene Schicht Wooden floor, solid wood 2,00 0,160 0,13 ¹ 1
2 inhomogene Schichtinhomogene Schicht inhomogeneous (parts parallel to the eaves) 5,00      
    50 cm (80%) Sheep’s wool - insulation felt (30 kg/m³) 5,00 0,040 1,25 2
    12,5 cm (20%) Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 5,00 0,120 0,42 0
3 inhomogene Schichtinhomogene Schicht inhomogeneous (parts parallel to the eaves) 6,00      
    50 cm (80%) Vertical air layer, heat flow down 56 < d <= 60 mm 6,00 0,273 0,22 0
    12,5 cm (20%) Wood fibre WF-W (130 kg/m³) 6,00 0,046 1,30 1
4 homogene Schichthomogene Schicht Normal concrete with reinforcement 1 % (2300 kg/m³) 20,00 2,300 0,09 46
5 homogene Schichthomogene Schicht Clay plaster 1,50 0,810 0,02 1
    building element 34,50   50
¹ layer is OI-relevant from BG1