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depiction:

DAm 04 b Reinforced concrete flat roof, non-ventilated (with planting)

 Ceiling, roof: flat or pitched roof exposed to outside air – not back-ventilated – heat flow ascending (BG1) – IBO benchmarks 2012
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0,102 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)³
B
mass 958,7 kg/m²
PENRT 1460 MJ/m²
GWP total 8,80 kg CO2/m²
AP 0,316 kg SO2/m²
no. type layer d
cm		 λ
W/mK		 R
m²K/W		 ΔOI3
pts/m²
1 homogene Schichthomogene Schicht Pflanzensubstrat (Flooring material - sand and gravel (1700 kg/m³)) 20,00 2,000 0,10 ¹ 0
2 homogene Schichthomogene Schicht PP fleece 0,02 0,220 0,00 ¹ 0
3 homogene Schichthomogene Schicht Fillings made of sand, gravel, grit (1800 kg/m³) 5,00 0,700 0,07 ¹ 1
4 homogene Schichthomogene Schicht Rubber granulate mat 1,00 0,170 0,06 ¹ 17
5 homogene Schichthomogene Schicht Rubber, EPDM 0,17 0,250 0,01 ¹ 12
6 homogene Schichthomogene Schicht Insulation cork (130 kg/m³) 42,00 0,045 9,33 14
7 homogene Schichthomogene Schicht Dampfsperre PE (Polyethylene (PE) vapour brake) 0,02 0,500 0,00 ¹ 1
8 homogene Schichthomogene Schicht Normal concrete with reinforcement 1 % (2300 kg/m³) 20,00 2,300 0,09 46
9 homogene Schichthomogene Schicht Filler - gypsum filler 0,50 0,400 0,01 1
    Rsi / Rse = 0,100 / 0,040  
    R' / R'' (max. relative error: 0,0%) = 9,811 / 9,811  
    building element 88,71   9,811 92
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