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depiction:

Efu 06 b Slab foundation, insulated lower side, sealing layer on floor slab

 Floor: in contact with ground – heat flow descending (BG1) – IBO benchmarks 2012
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0,162 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)4
D
mass 1078,8 kg/m²
PENRT 2004 MJ/m²
GWP total 126 kg CO2/m²
AP 0,445 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 (2000 kg/m³) 5,00 1,330 0,04 9
4 homogene Schichthomogene Schicht Building paper 0,02 ² ² ¹ 0
5 homogene Schichthomogene Schicht Wood fibre WF-T (130 kg/m³) 3,00 0,046 0,65 3
6 homogene Schichthomogene Schicht Loose-fill insulation from expanded perlite (100 kg/m³) 5,00 0,060 0,83 2
7 homogene Schichthomogene Schicht Polymer bitumen sealing sheeting 0,78 ² ² ¹ 19
8 homogene Schichthomogene Schicht Normal concrete with reinforcement 1 % (2300 kg/m³) 25,00 2,300 0,11 57
9 homogene Schichthomogene Schicht Building paper 0,03 ² ² ¹ 0
10 homogene Schichthomogene Schicht XPS–G 30 > 180 mm (32 kg/m³) 18,00 0,042 4,29 34
11 homogene Schichthomogene Schicht Lean concrete / cast and compressed concrete 5,00 ² ² ¹ 4
12 homogene Schichthomogene Schicht Building paper 0,03 ² ² ¹ 0
13 homogene Schichthomogene Schicht Fillings made of sand, gravel, grit (1800 kg/m³) 15,00 ² ² ¹ 3
14 homogene Schichthomogene Schicht PP fleece 0,02 ² ² ¹ 0
    Rsi / Rse = 0,170 / 0,000  
    R' / R'' (max. relative error: 0,0%) = 6,164 / 6,164  
    building element 78,18   6,164 147
¹ layer is OI-relevant from BG1
² not relevant
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