Civil Engineering Reference
In-Depth Information
Table 4
Design of the residential reference building (Regierung der Bundesrepublik Deutschland
2009
)
Line
Component/system
Reference design/value (measuring unit)
Parameter (for Lines 1.1 to 3)
U = 0.28 W/(m
2
K)
1.1
Outside wall, storey ceiling against external air
Heat transfer coefficient
U = 0.35 W/(m
2
K)
1.2
Exterior wall against ground, foundation slab, walls and
ceilings to unheated spaces (except those in accordance with Line 1.1)
Heat transfer coefficient
U = 0.20 W/(m
2
K)
1.3
Roof, top-floor ceiling, walls to long pane of roof
Heat transfer coefficient
U
w
= 1.30 W/(m
2
K)
1.4
Windows, French doors
Heat transfer coefficient
g
\
= 0.60
Overall level of energy
permeability of glazing
U
w
= 1.40 W/(m
2
K)
1.5
Skylights
Heat transfer coefficient
g
\
= 0.60
Overall energy transmittance
of the glazing
U
w
= 2.70 W/(m
2
K)
1.6
Dome lights
Heat transfer coefficient
g
\
= 0.64
Overall energy permeability
of the glazing
U = 1.80 W/(m
2
K)
1.7
Outside doors
Heat transfer coefficient
DU
WB
= 0.05 W/(m
2
K)
2
Components according to Lines 1.1 to 1.7
Heat bridge tolerance
3
Air tightness of building cladding
Rated value n
50
In the case of calculation according to
• DIN V 4108-6:2003-06: with leak, test
• DIN V 18599-2: 2007-02: according to Category I
4
Sunscreen device
No sun protection device
5
Healing system
• Heat: generation through condensing boiler (improved), domestic fuel oil, Set-up:
- for building with up to 2 flats within the thermal cladding
- for building with more than 2 flats outside of the thermal cladding
• Layout temperature 55/45 C, central distribution system within the heat-
transmitting surface area, inside lines, and assigned pipes, pumps laid out
(controlled, Dp constant), pipeline network hydraulically aligned, thermal
insulation of pipelines according to Appendix 5
• Heat transfer with free static heating surfaces, alignment to normal exterior
wall, thermostat valves with proportional range 1 K
(continued)
