towards bigger buildings - emplempl.ee/wp...viljakainen_towards_bigger_buildings.pdf · 12.11.2012...

Towards bigger buildings

Estonian Wood Day

8th November 2012

12.11.2012 Mikko Viljakainen

Why bigger buildings?

12.11.2012 Titta Vuori,Modelark

Customer opinion

0

10

20

30

40

50

60

70

80

90

100

Vähintään tyytyväisiä Satisfaction rate %

FWR/TTY survey 2011: • 6 buildings from 1996 – 2003 • Flats 157 (24 % of all) • 118 answers (75 %)

• Owners 58% • Rentals 42%

-100000 -80000 -60000 -40000 -20000 0 20000 40000 60000 80000 100000

0

4

8

12

16

20

24

28

32

36

40

44

48

52

56

60

64

68

72

76

80

84

88

92

96

10

0

FlerbostadshusSmåhus

De flesta barn i Sverige föds till småhusboende….

…vi lever som familj i ett småhus…

…vi flyttar till flerbostadshus som första egna hem….

…vi rör oss så småningom mot flerbostadshuset när barnen flugit ut…..

Här finns nu en växande industribyggsektor som siktat in sig på den

bostadsmarknad som kommer att växa i framtiden….

Population breakdown by age in relation

with Housing

Lähde: Hans-Erik Johansson, Träbyggnadskansli

Vi minskar våra “ansvarsår”……

Personer födda mellan 1945 och 1954 tänker i första hand

förverkliga sig själva……… (Källa: Kairos Future)

ålder 20 40 60 80

År 1920

År 1960

År 2000

År 2040

70 50 30

Barndom

Befrielsetid

Frihetstid

Ansvarsår

Ålderdom

Block of flats are needed more because...


Vi skapar oss mer “frihetstid”……

Åren i livsfaser där man i hög grad lever singel och i

flerfamiljshus ökar………

ålder 20 40 60 80

År 1920

År 1960

År 2000

År 2040

70 50 30

Livstid och livsstil där boende i flerfamiljshus dominerar

Barndom

Befrielsetid

Frihetstid

Ansvarsår

Ålderdom

The population group, which typically

lives in block of flats, is growing.


7

0

2000

4000

6000

8000

10000

12000

14000

0

10

20

30

40

50

60

70

80

90

100

Puun osuusrunkorakenteissa %

Puun osuusulkoverhouksissa %

Markkinoidenkokonaisvolyymi(1000 m3)

The biggest potential is where

decisions are made professionally and

where the buildings are big

Source: Tilastokeskus, Rakentamisen tilastot. VTT

Market share of

wood in frames %

Market share of

wood in facades %

Total potential

(1000m3)

Wood construction serves the raw material

supply of the whole forest industry

4.11.2009

Wood constructions’ impact on national

economy What will happen to our economy, if we increase use of wood in construction

12.11.2012 Lähde: PTT, Puurakentamisen yhteiskunnalliset vaikutukset

-1,5 %

-1,0 %

-0,5 %

0,0 %

0,5 %

1,0 %

1,5 %

Välituotteidentuotanto Suomessa

Välituotteiden tuonti

Palkansaaja-korvaukset

Toiminta-ylijäämä,

netto Arvonlisäys Tuotos Työpanos

Perus Vahva

1 Internationally relevant reference buildings

2 Most advanced building

regulations

3 Top competence and know how

4 Proprietary solutions for new construction and

renovations

2009 Internationally competitive wood construction industry

Demand according the town plans (m2)

= about 7700 flats until 2015


New fire codes give significant new potential!

12.11.2012

1 2

3 4

Mikko Viljakainen


1997

B-s

2, d

0

D-s

2,

d0

• P2 fire class maximum 8 storeys

• Sprinkler system is required

• K210 or K230 fire protected structures

• A-class insulation materials

• Special requirements for eaves, wooden

facades (flame traps), emergengy exits,

balconies

2011

Block of flats up to 8 floors

Town houses up to 4 floors


1997

B-s

2, d

0

D-s

2,

d0

• P2 fire class maximum 4 storeys

• Fire protections of the structures K230

• A-class insulation materials

• No sprinkler system requirement

2011

Max. 4 storey concrete frame


1997 2011

• D-s2, d0 (wood) facades up to 4 floors

• Ground floor minimum B-s2, d0 (fire protected wood) .

• B-s2, d0 (fire retardant treated wood) facades up to 8 floors


B-s

2, d

0

D-s

2,

d0

Max. 7 storey concrete frame

12.11.2012 Mikko Viljakainen 1997 2011

• D-s2, d0 class (wood) extra floor

• B-s2, d0 (fire retardant treated wood)

facades up to 8 floors


B-s

2, d

0

D-s

2,

d0

12.11.2012 Titta Vuori, Modelark

Competence and

know how on

a new level!

New industrial construction methods

12.11.2012 Titta Vuori, Moderlark

Hybrid technology


CLT (Cross Laminated Timber )


Mikko Viljakainen

Post and beam technology


Volume elements 12.11.2012 Mikko Viljakainen

Renovation of old blocks of flats is

significant potential


Case example of new fire codes –

present situation


Weaknesses

•Weak technical condition and

energy performance

•No elevator

•Small flats have no balconies

•Dark ground floor with no

windows

•No ventilation of it is very weak

•Considered ugly, bad image of

the areas

Potential

•Good location with well

established infrastructure and

services

•Typical low density of milieu

allows additional building

volumes

•Bulky flats and rooms

•Durable and well performing

skeleton of the building BEFORE

Potential of wood


•Better energy performance

and surface for the building

with low CO2 emissions

•New visual appearance and

shape of the building – new

image

•Extra floor(s) and new roof

shape – income to finance

elevator and other renovation

works

•New balconies

•Hi-level prefabrication and

industrially controlled quality

of t he components.

•Very fast assembly to reduce

the harm for residents.

•Visual wood is favoured

material.

•Cost competitive.

AFTER


AFTER

BEFORE

Cost competitiveness – Exterior walls Source ISS Proko Oy, Index (Haahtela) 1/2011 HELSINKI KL79


0

50

100

150

200

250

300

Wood facadeand frame

Brick cladding Ceramic tiles Thin Steelplates withsteel frame

Plastering175mm

insulation

€/m2

Demolition works and design costa are not included. All structures ful fill the same energy perfomance

criteria (2010/2012) Includes VAT 23 %

Cost competitiveness – Extra floor Source ISS Proko Oy, Index (Haahtela) 1/2011 HELSINKI KL79


2200

2300

2400

2500

2600

2700

2800

2900

3000

3100

Wood facadeand frame

Volumetricwoodenelement

Thin Steelplates withsteel frame

Conventionalconcrate

frame

Ceramic tiles Brick cladding

€/m2

Includes VAT 23 %

CO2 Emissions of the construction works

and CO2 storage (kg/m2)


-60

-40

-20

0

20

40

60

Brick wallwith mineral

wood

Wood wallwith wood

fibreinsulation

Wood wallwith mineral

woolinsulation

Steel wallwith mineral

wool

CO2 storage

CO2 emissions of the construction works


Valokuva: Kimmo Lylykangas

Present

Plan

Oulu

Projects

Porvoo

Arkkit. yo. Tiina Hotakainen

Plan

Present

Present

Plan

Tampere

Arkkit. yo. Niina Murtonen

Present

Plan

Present

Riihimäki

Arkkit. Yo. Tomi Tulamo

Plan


Speed

6H2O + 6CO2 → C6H12O6 + 6O2


12.11.2012 Kuva Mika Huisman

12.11.2012 Jaakko Kalliokoski, Teija Soini

12.11.2012 Ari-Pekka Sinikoski

12.11.2012 M. Huisman

Thank

you!

towards bigger buildings - emplempl.ee/wp...viljakainen_towards_bigger_buildings.pdf · 12.11.2012...

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