Civil Engineering Reference
In-Depth Information
Table 5 Maximum values of the specific transmission heat loss related to the heat-transmitting
surface area in residential buildings (Regierung der Bundesrepublik Deutschland
2009
)
Line
Type of building
Maximum value of the specific
transmission heat loss (W/(m
2
K))
with A
N
B 350 m
2
1
Detached residential building
H
0
T
¼
0
:
40
with A
N
[ 350 m
2
H
0
T
¼
0
:
50
H
0
T
¼
0
:
45
2
Semi-detached residential building
H
0
T
¼
0
:
65
3
All other residential buildings
H
0
T
¼
0
:
65
4
Extensions and expansion of residential buildings
in accordance with Sect. 9 paragraph 5
Table 6 Maximum values of the average heat transfer coefficients of the heat-transmitting
surface area of commercial buildings (Regierung der Bundesrepublik Deutschland
2009
)
Line
Component
Maximum values of heat transfer coefficients,
related to the average of the relevant components
Zones with target
room temperatures
in the case of
heating C 19 C
(W
/(m
2
K))
Zones with target room
temperatures in the case
of heating from
12 to \ 19 C (W/(m
2
K))
1
Opaque exterior components,
if not contained in components
of Lines 3 and 4
U
¼
0
:
35
U
¼
0
:
50
2
Transparent exterior components,
if not contained in components
of Lines 3 and 4
U
¼
1
:
90
U
¼
2
:
80
3
Curtain wall
U
¼
1
:
90
U
¼
3
:
00
4
Glass roofs, light bands,
dome lights
U
¼
3
:
10
U
¼
3
:
10
Table 7 Tightening of maximum values of the specific transmission heat loss related to the heat-
transmitting surface area in residential buildings
Type
Area
A
N
*(m
2
)
En EV
2009
New buildings
till 31.12.2015
New buildings
from 1.1.2016
Free standing
A
N
B 350
0.4
0.38 (-5 %)
0.36 (-10 %)
A
N
[ 350
0.5
0.46 (-8 %)
0.42 (-16 %)
One side attached
A
N
B 350
0.45
0.4 (-11 %)
0.36 (-20 %)
Two side attached
A
N
B 350
0.65
0.45 (-30 %)
0.38 (-41 %)
Extensions and add-ons
(§9 Abs. 5)
0.65
0.65(0 %)
0.65(0 %)
Other residential
0.65
0.5 (-23 %)
0.45 (-30 %)
