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depiction:

KDb 01 b Basement ceiling slab with insulation on both sides, wet screed

 Floor: exposed to unheated parts of buildings – heat flow descending (BG1) – IBO benchmarks 2012
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0,157 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)³
C
mass 597,9 kg/m²
PENRT 1532 MJ/m²
GWP total 113 kg CO2/m²
AP 0,405 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 Dampfbremse PE (Polyethylene (PE) sealing sheeting) 0,05 0,500 0,00 ¹ 2
5 homogene Schichthomogene Schicht Wood fibre WF-W (130 kg/m³) 2,00 0,046 0,43 2
6 homogene Schichthomogene Schicht Perlite insulation boards (134 kg/m³) 12,00 0,061 1,97 35
7 homogene Schichthomogene Schicht Normal concrete with reinforcement 1 % (2300 kg/m³) 20,00 2,300 0,09 46
8 homogene Schichthomogene Schicht Mineral adhesive 0,50 1,000 0,01 3
9 homogene Schichthomogene Schicht Wood wool panel WWH magnesite-bonded (550 kg/m³) 0,50 0,140 0,04 1
10 homogene Schichthomogene Schicht Rock wool MW(SW)-W (30 kg/m³) 14,00 0,042 3,33 12
11 homogene Schichthomogene Schicht Wood wool panel WWH magnesite-bonded (550 kg/m³) 0,50 0,140 0,04 1
    Rsi / Rse = 0,170 / 0,170  
    R' / R'' (max. relative error: 0,0%) = 6,361 / 6,361  
    building element 55,85   6,361 124
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