1 the good reason to build with esbg 2015€¦ · 1 21.08.2015 esbg 2015 dipl.- ing. architekt dirk...
TRANSCRIPT
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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
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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
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21.08.2015
ENVIRONMENTAL PRODUCT DECLARATION EPD
Aggregation of environmental impact and resource
demand for material production
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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
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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.
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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)
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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.
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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
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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
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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
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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)
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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
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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
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06.07.2015
THANK YOU!
In de Masch 6, D- 21394 Südergellersen
Tel.: +49 4131 727 804
www.architekt-scharmer.de