Wood in the City Wood in the City

Slovenia
Assist. Prof. Dr. Manja Kitek Kuzman, architect
University of Ljubljana
Department of Wood Science and Technology
www.lesena-gradnja.si
Promo_legno
International conference
30 september 2011 Trieste
30.
Wood
in
the
City
W d buildings
Wood
b ildi
iin Slovenia
Sl
i
Wooden Buildings
g in Slovenia
Rational use of wood in the context of sustainable forest management
Annual wood consumption
i selected
in
l t d countries
t i off the
th EU
(m3 per capita)
60%
Slovenia is 3th EU
country with high
forest cover
after Sweeden and
Finland
The EU average in 2005
F
Forest
structure
Österreich
Steiermark
Slowenien
3.960.000 ha
1.002.000
1.221.749 ha
47,2 %
61,1 %
63 %
Growing stock [m3/ha]
325
338
270
Prirastek [m3/ha]
9,3
9,8
6,6
Nutzung [m3/ha]
5,6
6,4
2,8
Nutzung [%]
60,2 %
65,3 %
43,7 %
Forest owners
170.548
44.027
cca 314.000
Durschnittliche
D
h i li h
Waldgröße
23,2 ha
22,8 ha
2,6 ha
Forest area
Forest %
The EU average in 2005
Surs: Holzcluster Steiermark GmbH, ProHolz Steiermark, 2010 The Slovenia Forest Service Report on Slovenian forest
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
2
71 native tree species in Slovenia
Norwayy spruce
p
((Picea abies),
),
silver fir (Abies alba),
scots pine (Pinus sylvestris),
larch ((Larix decidua),
)
oak (Quercus sp.),
sweet chestnut (Castanea sativa), and
beech (Fagus sylvatica)
are
among the most frequently used wood
species for building purposes in
Slovenia.
3
Wooden Building has been increased
in Slovenia since last years!
The highest number of prefabricated wooden houses is produced by Slovenian producers of
prefabicated houses Association, which operates under the Chamber of Commerce and Industry
of Slovenia Wood Processing and Furniture Association since 1999. The members are:
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
4
The prevailing systems of timber construction
In addition to the production of bigger companies, a non
negligible amount of wooden houses have appeared
lately constructed by the undertakings themselves and
lately,
through smaller tradesmen - carpentry workshops.
Examples: Panel system TF (prefabricated),
(prefabricated) timber frame,
frame solid timber,
timber massive panel
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
5
New projects: Family houses
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
6
Rihter hiše
Our research in future
The units will be
independent,
compact integrated
compact,
integrated,
and inter-connectable
into systems.
1. Modular housing units
Riko hiše| modular housing units Modeko,
d’Eva
Vir: CBD
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
7
2. Energy-plus house renovation
Eexpectations of the modern society are growing increasingly higher. Apart from a high
level of comfort, the focus has also shifted to easy-to-use, environmentally-friendly
building components that save energy and require minimum costs.
Thermal renovation
allows for significant
energy savings
Source: ProHolz
A comprehensive
renovation of the
housing stock
combined with a
f ti l
functional
rearrangement of
spaces.
Source: ZRMK
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
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Applying advanced technology
In the field of wood industry
Building-integrated
Building
integrated photovoltaics
Lumar IG, House Petkovšek| 2010
International Congress European Wood in the City, Trieste September 30th
Kager hiša, | 2011
M. K. Kuzman, University of Ljubljana Slovenia
9
3. An intelligent renovation of the housing
stock and an efficient upgrade
with the use of wood as the primary material by following the
principle of minimum costs for occupants thanks to newly
acquired commercial surfaces.
surfaces
D i
Design
Old:New
Flexibilty
Price
P
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
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3. Wood extensions
Riko hiše|Stockholm
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
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Obj t reconstruction
Object
t ti & timber
ti b extension
t i
Object | Hotel terme Čatež
Year 2011
Location | Slovenija, Čatež
Construction System
y
| Massive cross-laminated timber construction
Constructor | Hoja d.d., Structural engineering-CBD d.o.o.
promo_legno International Congress European Wood in the City, Trieste September 30th
11a
4. Multi-story wooden buildings built in 2011
Today, technical headway is opening up new possibilities constructing 4 or more floors with
the use of macro-panel systems.
Rih hiše
Rihter
hiš
Jelovica hiše
Picture: Multy –story buildings in Austria | proHolz
Rubner
Riko hiše
Smreka | Visitor center | Irska
Jelovica
Marles hiše
Ekoprodukt
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
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4. Multi-story wooden buildings in Slovenia
new possibilities constructing 4 + floors with the use of macro-panel systems
.... in the past
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
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5. Residential complex hausing
Picture: Residential complex in Ljubljani, singel panel 1965-1970 | Company: Jelovica
Picture: Residential complex | Company: Marles hiše
The development
Th
d
l
t from
f
the
th old
ld singlei l
panel to the new macro-panel wall
system in mid-90 dramatically
increased the speed of construction.
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
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5. Residential areas – non-profit construction
Multi-story wooden buildings
Modular system – different sizes of modular floor plans
adapt to new situations and ever-changing needs
first floor
second floor
....
Multifunktionaale Camp | Passsail, proHolz
Ground floor
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
15
The number of people opting
f a wooden
for
d building
b ildi
i
is
higher than 5 years ago!
.
What kind of building would
you choose?
Brick
Wood
Wooden building enable healthier
healthie
living as brick-concrete one
70%
60%
50%
40%
30%
20%
10%
0%
Fully u y
agree
A
Agree
N
Not even
Don't o t
agree
At all don't d
'
agree
Don't o t
know
2006
32%
30%
28%
5%
2%
4%
2011
60%
24%
10%
3%
2%
2%
Don’t konow
Source: The Slovenian public opinion survey on wooden
buildings 2006-2011 | University of Ljubljana (n=628)
Choosing the window material
Wood
promo_legno International Congress European Wood in the City, Trieste September 30th
Wood- Alu
Alu
PVC
16
Communities support the wood!
Would you be willing to invest more money in your municipality in order to provide
ffor an environment, which would have a ppositive impact
p on ppeople?“
p
►79% yes, 17% no, 4% don’t know
In your opinion, in what proportion
wood / wood produts could be installed
in new public buildings in your
community?
Kindergarden
29%
Settlements
71%
38%
New public buildings
54%
75%
0%
20%
Bi
Bric‐concrete lowenergy
t l
40%
8%
21%
60%
W dl
Wood lowenergy
80%
4%
100%
D 't k
Don't know
Source: The Slovenian public opinion survey on wooden buildings (2)2011 | University of Ljubljana
| selected municipalities as a potential investors|
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
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Green public procurement
Attention is placed on the environmental aspects of the product,
service or construction in all stages of a project and during the
entire
ti lif
life cycle
l off the
th subject
bj t off the
th procurement.
t Environmental
E i
t l
or “green” demands are expressed with technical specifications
defined in detail by the relevant performance and quality
standards.
The minimum amount of wood installed in newly
y constructed
public buildings;
▪ Proposal: 30% of wood compared to the entire volume of
material of the load-bearing
load bearing construction for buildings
buildings.
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
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Footprint indicator is becoming in Slovenia
desired and even required information
f
Partners in Cradle To Cradle Network
John, S. eet al. 2010: The caarbon footprint of m
multi-story timber buuilding
comparedd with conventional materials. WCTE 22010.
Year| 2010-2011
Built up area | 1.165 m2
Location | Slovenija
C t ti S
Construction
System
t | panell construction
t ti
Constructor | Lumar IG d.o.o
Plusenergy house Primus, Lumar IG Slovenia
Timber plus building
promo_legno International Congress European Wood in the City, Trieste September 30th
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International co-operations
▪ Publications
▪ Seminars 2009,, 2010,...
,
▪ Excursions
Building with wood - chellenge and
oppurtunities
t iti for
f Slovenia,
Sl
i Manja Kitek Kuzman et.al
with cooperation
2008 1st edition sold out in 2 months, 2009 2st edition
Wood in Slovenian Contemporary Architecture 2010
Chamber of Architecture and Spatial Planning of Slovenia
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
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www.lesena-gradnja.si
Web page
■ Biotechnical faculty, Department of wood science and
technology, University of Ljubljana
■ Faculty of Architecture, Ljubljana, University of Ljubljana
■ Faculty of civil engineering and geodesy
University of Ljubljana
■ Faculty of Civil Engineering, University of Maribor
■ Chamber of Architecture and Spatial Planning of Slovenia
■ Slovenian Chamber of Engineers IZS
■ Eco Found Slovenian Public Fund financing
■ Slovenia forest service
■ Chamber of Commerce and Industry of Slovenia
Wood Processing and Furniture Association
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
24
New monography
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia
International Congress European Wood in the City, Trieste September 30th
M. K. Kuzman, University of Ljubljana Slovenia