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depiction:

Efo 03 a Slab foundation, insulated upper side, wood floor on floor batten

 Floor: in contact with ground – heat flow descending (BG1) – IBO benchmarks 2012
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0,144 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)4
D
mass 884,9 kg/m²
PENRT 1864 MJ/m²
GWP total 92,4 kg CO2/m²
AP 0,431 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 Internal chipboard (650 kg/m³) 2,20 0,130 0,17 4
4 inhomogene Schichtinhomogene Schicht inhomogeneous (parts transverse) 7,50      
    56,5 cm (90%) Glass wool MW(GW)-W (15 kg/m³) 7,50 0,040 1,88 4
    6 cm (10%) Timber (425 kg/m³) - rough, technically dried 7,50 0,110 0,68 0
5 homogene Schichthomogene Schicht Glass wool MW(GW)-T (80 kg/m³) 1,50 0,035 0,43 5
6 homogene Schichthomogene Schicht Polyethylene (PE) vapour brake 0,01 ² ² ¹ 0
7 homogene Schichthomogene Schicht XPS–G 30 > 180 mm (32 kg/m³) 18,00 0,042 4,29 34
8 homogene Schichthomogene Schicht Aluminium bitumen sealing membrane 0,38 0,230 0,02 ¹ 13
9 homogene Schichthomogene Schicht Normal concrete with reinforcement 1 % (2300 kg/m³) 25,00 2,300 0,11 57
10 homogene Schichthomogene Schicht Building paper 0,03 ² ² ¹ 0
11 homogene Schichthomogene Schicht Fillings made of sand, gravel, grit (1800 kg/m³) 15,00 ² ² ¹ 3
12 homogene Schichthomogene Schicht PP fleece 0,02 ² ² ¹ 0
    Rsi / Rse = 0,170 / 0,000  
    R' / R'' (max. relative error: 1,0%) = 6,995 / 6,860  
    building element 70,94   6,928 135
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