1
21.08.2015
ESBG 2015
Dipl.- Ing. Architekt Dirk Scharmer, In de Masch 6, 21394 Südergellersen, www.architekt-scharmer.de
FASBA
THE GOOD REASON TO BUILD WITH
2
21.08.2015
ENVIRONMENTAL
BUILDING ASSESSMENT
Comparison of single family homes*:
straw vers. brick (same U-values ~0,15 W/m²K)
Fighting Climate change: Brick house is like the straw
plus 500.000km car driving
Reducing primary energy demand, non renewable,
brick house is like straw house plus 4.000 L oil
* Production, repairing
3
21.08.2015
ENVIRONMENTAL PRODUCT DECLARATION EPD
Aggregation of environmental impact and resource
demand for material production
4
21.08.2015
Phases A 1-3 A 4-5 B 1-7 C 1-4 D
Production erecting usage End-of-life Outside system
Ro
hst
off
bes
chaf
fun
g
Tran
spo
rt
Pro
du
ktio
n
Tran
spo
rt
Erri
chtu
ng
/ Ei
nb
au
Nu
tzu
ng
Inst
and
hal
tun
g
Inst
and
setz
un
g
Au
stau
sch
Mo
der
nis
ieru
ng
Ener
giev
erb
rau
chim
Bet
rieb
Was
serv
erb
rau
chim
Bet
rieb
Rü
ckb
au/
Ab
riss
Tran
spo
rt
Ab
fallv
erw
ertu
ng
Ents
org
un
g
Pote
nti
al f
ür
Wie
der
verw
ertu
ng
Rü
ckge
win
nu
ng
un
d
Rec
yclin
g
Module
DIN EN 15978
A1 A2 A3 A4 A5 B1 B2 B3 B4 B5 B6 B7 C1 C2 C3 C4 D
LIFECYCLE
EnEVProduction disposal/ Recycling
Production of insulation materials Primary energy demand non renewable
Estimate: How much times more is needed for polystyrol than
for straw (same U-Value)?
Possible answersA B C D
20x 10x 36x 2x
Correct answer: C. 36-times more for polystyrol.
0
20
40
60
80
100
120
140
160
180
200
195180
164
116
6253
11 5[kW
h/m
²] a
t U
=0
,15
W/m
²K
TYPE OF INSULATION
Production insulation material: Primary energy
demand, non renewable
For the production of 1m² Building Straw
with U-Value U=0,15 W/m²K 5 kWh
PENRE are needed. 36-times less then for
Polystyrol (180/5=36)
Production of wallsPrimary energy demand non renewable
Estimate:
How much times less is needed for the production of
a straw wall (with the same U-Value) as for a brick
wall?
Possible
answers
A B C D
100x 20x 5x 10x
Correct answer: C. 5 times less.
0
50
100
150
200
250
300
350
400
brick wall porebrick
wall
timber
frame,
mineral
fibre
timber
frame,
cellulose
timber
with
straw
351
229206
162
70
[kW
h/m
²] a
t U
=0
,15
W/m
²K
BUILDING METHOD
production of walls, different methods, Primary
energy, non renewable
The straw insulated
timber wall needs
5 times less energy
For production than a
two layer brick wall
Production of typical housesPrimary energy demand non renewable
Estimate: How much times less would straw house would need compared with a typical brick house (same U-Values)?
Possible
answers
A B C D
100x 20x 2x 10x
Correct Answer: C. Straw house would need 2 times less energy
-
10,0
20,0
30,0 24 2422
1816
12
[kW
h/(m
²∙a
)]
Building method
Production of typical houses
Primary energy demand non renewable
Strawhouse needs
only half the amount
of the brick house
Production of house, Global warming potential
Ausgangssituation:
Vergleich von sechs verschiedenen Einfamilienhausbauweisen:
Emissionen durch Herstellung.
Production of typical Brickhouse emitates 47t CO2 strawhouse
takes 19t CO2 out of the atmosphere.
Estimate: How far can you go with 5L-car(~120g C02/km) for
difference?
Possible answersA B C D
>500.000 ca. 100.000
-20.000
-10.000
-
10.000
20.000
30.000
40.000
50.000
Poroton Brick 2
Layers
Brick+
EPS
Timber
frame
mineral
wool
Timber
frame
cellulose
Timber
straw
47.924 43.973
38.837
1.504
-9.319
-19.476
[kg
CO
2-E
qu
iva
len
t]
Building method
Production of house, Global warming potential
The straw building stores 19t, the typical one
out brick emitates 47t. Difference: ca. 66t.
With a 120g-Auto you would have to drive
over 500.000km to emitate this amount.
-10.000
-
10.000
20.000
30.000
40.000
50.000
Poroton bricks
with EPS
Timber
frame
with
mineral
wool
bricks 2
layers
Timber
frame
cellulose
Timber
straw
less
PENRE
[kWh/a]
from A+
to PH
41.373 39.937
28.774 28.774
3.029 1.487
-285
DEMAND of PENRE [kWh/a] for additional
insulation from A+ to Passivhaus
Δ for A+ to Passivhaus in conventional
building is like 100 years heating
(renewable)
Production of claddingsPrimary energy demand, non renewable
Estimate:
Which cladding needs most, which one
fewest?
Correct Answer:
most: chipboard.
Fewest Timber boards
Auswahl:
Earth plaster
chipboard
Fliesen
Timber boards
Limeplaster gypsum
fibre boards
gypsum boards
0,0
5,0
10,0
15,0
20,0
25,0
30,0
OSB Tiles Gypsum
fibre board
Gypsum
board
Lime plaster
20mm
Earth
plaster
Timber
board
24mm
28 27
23
1512
118
[kW
h/m
²] c
ov
eri
ng
TYPE OF COVERING
Production of coverings: Primary
energy demand, non renewable
A chipboard need most.
A timber board need fewest
16
06.07.2015
THANK YOU!
In de Masch 6, D- 21394 Südergellersen
Tel.: +49 4131 727 804
www.architekt-scharmer.de
Top Related