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depiction:

DAm 05 a Reinforced concrete flat roof, non-ventilated (terrace structure)

 Ceiling, roof: flat or pitched roof exposed to outside air – not back-ventilated – heat flow ascending (BG1) – IBO benchmarks 2012
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0,096 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)³
F
mass 692,5 kg/m²
PENRT 2419 MJ/m²
GWP total 130 kg CO2/m²
AP 0,415 kg SO2/m²
no. type layer d
cm		 λ
W/mK		 R
m²K/W		 ΔOI3
pts/m²
1 homogene Schichthomogene Schicht Normal concrete without reinforcement (2200 kg/m³) 5,00 1,650 0,03 ¹ 7
2 inhomogene Schichtinhomogene Schicht inhomogeneous (parts parallel to the eaves) 5,00      
    57,5 cm (92%) Fillings made of sand, gravel, grit (1800 kg/m³) 5,00 0,700 0,07 ¹ 1
    5 cm (8%) Lime cement mortar for stonework (1800 kg/m³) 5,00 1,050 0,05 ¹ 1
3 homogene Schichthomogene Schicht Rubber granulate mat 1,00 0,170 0,06 ¹ 17
4 homogene Schichthomogene Schicht Polymer bitumen sealing sheeting 0,78 0,230 0,03 ¹ 19
5 homogene Schichthomogene Schicht Dampfdruckausgleichsschicht (Polyethylene (PE) vapour brake) 0,16 0,500 0,00 ¹ 5
6 homogene Schichthomogene Schicht EPS-W 25 (23 kg/m³) 36,00 0,036 10,00 49
7 homogene Schichthomogene Schicht Aluminium bitumen sealing membrane 0,14 0,230 0,01 ¹ 5
8 homogene Schichthomogene Schicht Entspannungsschicht (Polyethylene (PE) sealing sheeting) 0,17 0,500 0,00 ¹ 6
9 homogene Schichthomogene Schicht Normal concrete with reinforcement 1 % (2300 kg/m³) 20,00 2,300 0,09 46
10 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%) = 10,445 / 10,444  
    building element 68,75   10,444 158
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