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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

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

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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