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depiction:


KDu 01 a Solid basement ceiling slab, insulated lower side

Floor: exposed to unheated parts of buildings – heat flow descending (BG1) – IBO benchmarks 2012
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0,145 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)4
B
mass 676,1 kg/m²
PENRT 1092 MJ/m²
GWP total 84,5 kg CO2/m²
AP 0,308 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 Polyethylene (PE) sealing sheeting 0,02 0,500 0,00 ¹ 1
5 homogene Schichthomogene Schicht Glass wool MW(GW)-W (32 kg/m³) 3,00 0,035 0,86 4
6 homogene Schichthomogene Schicht Fillings made of sand, gravel, grit (1800 kg/m³) 5,00 0,700 0,07 1
7 homogene Schichthomogene Schicht Normal concrete with reinforcement 1 % (2300 kg/m³) 20,00 2,300 0,09 46
8 homogene Schichthomogene Schicht Glass wool MW(GW)-W (18 kg/m³) 20,00 0,038 5,26 14
9 homogene Schichthomogene Schicht Wood wool panel WWH magnesite-bonded (550 kg/m³) 2,50 0,140 0,18 3
additional materials (thermally not relevant): (quantity per m² building element)
7,5 kgDeckenprofile gesamt (Steel sheet, galvanised)² 21
    Rsi / Rse = 0,170 / 0,170  
    R' / R'' (max. relative error: 0,0%) = 6,919 / 6,919  
    building element 56,82   6,919 92

¹ layer is OI-relevant from BG1
² layer is OI-relevant from BG3
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