back Open print view Show page as PDF

depiction:

DAl 03 b Double T-beam steeply-pitched roof

 Ceiling, roof, 30°: flat or pitched roof exposed to outside air – back-ventilated – heat flow ascending (BG1) – IBO benchmarks 2012
login and edit copy of this building element
0,100 W/m²K
A++
A+
A
B
C
D
E
F
G
OI-Class (BG1)4
A+
mass 129,0 kg/m²
PENRT 795 MJ/m²
GWP total -39,7 kg CO2/m²
AP 0,190 kg SO2/m²
no. type layer d
cm		 λ
W/mK		 R
m²K/W		 ΔOI3
pts/m²
1 homogene Schichthomogene Schicht Clay roof tiles (2000 kg/m³) 2,50 ¹ ¹ ² 14
2 inhomogene Schichtinhomogene Schicht inhomogeneous (parts parallel to the eaves) 3,00      
    53,1 cm (85%) Vertical air layer, horizontal heat flow 25 < d <= 30 mm 3,00 ¹ ¹ ² 0
    9,4 cm (15%) Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 3,00 ¹ ¹ ² 0
3 inhomogene Schichtinhomogene Schicht inhomogeneous (parts normal to the eaves) 5,00      
    56,3 cm (90%) Vertical air layer, heat flow up 46 < d <= 50 mm 5,00 ¹ ¹ ² 0
    6,3 cm (10%) Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 5,00 ¹ ¹ ² 0
4 homogene Schichthomogene Schicht Dachauflegebahn PE, diffusionsoffen (Polyethylene (PE) roof underlay - open to diffusion) 0,10 0,500 0,00 ² 5
5 homogene Schichthomogene Schicht Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 2,40 0,120 0,20 0
6 inhomogene Schichtinhomogene Schicht inhomogeneous (parts normal to the eaves) 4,00      
    57,5 cm (92%) Cellulose horizontal cavity wall insulation (36 kg/m³) 4,00 0,041 0,98 1
    5 cm (8%) OSB boards (650 kg/m³) 4,00 0,130 0,31 1
7 inhomogene Schichtinhomogene Schicht inhomogeneous (parts normal to the eaves) 28,00      
    61,7 cm (99%) Cellulose horizontal cavity wall insulation (36 kg/m³) 28,00 0,041 6,83 6
    0,8 cm (1%) Plywood and veneer timber for interior use (625 kg/m³) 28,00 0,150 1,87 2
8 inhomogene Schichtinhomogene Schicht inhomogeneous (parts normal to the eaves) 4,00      
    57,5 cm (92%) Cellulose horizontal cavity wall insulation (36 kg/m³) 4,00 0,041 0,98 1
    5 cm (8%) OSB boards (650 kg/m³) 4,00 0,130 0,31 1
9 homogene Schichthomogene Schicht OSB boards (650 kg/m³) 1,80 0,130 0,14 4
10 inhomogene Schichtinhomogene Schicht inhomogeneous (parts parallel to the eaves) 5,00      
    56,3 cm (90%) Isolena Schafwolle, Optimal, 18 kg/m³ 5,00 0,043 1,16 1
    6,3 cm (10%) Timber (475 kg/m³ - e.g. spruce/fir) - rough, technically dried 5,00 0,120 0,42 0
11 homogene Schichthomogene Schicht Gypsum fibreboard (1125 kg/m³) 1,25 0,400 0,03 6
12 homogene Schichthomogene Schicht Gypsum fibreboard (1125 kg/m³) 1,25 0,400 0,03 6
    Rsi / Rse = 0,100 / 0,100  
    R' / R'' (max. relative error: 1,6%) = 10,169 / 9,856  
    building element 58,30   10,013 45
¹ not relevant
² layer is OI-relevant from BG1
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