slovenian contemporary architecture wooden buildings in

Assist. Prof. Dr. Manja Kitek Kuzman, architect

Department of Wood Science and Technology

University of Ljubljana, Slovenia

Wooden Buildings in Slovenia

Slovenia

23rd June 2014

Timber Passive House Technologies of

Slovenian Contemporary Architecture57th International Convention of Society of Wood Science

and Technology, June 23-27, 2014 – Zvolen, SLOVAKIA

Brick Wood Don’t konow

What kind of building would

you choose?

The number of people opting for a

wooden building is higher than 5 years ago!

University of Ljubljana| Department of Wood Science & Technology dr.Manja K. Kuzman 2

Examples: Panel system (prefabricated), wood frame, solid wood 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

through smaller tradesmen - carpentry workshops.


Wood in Slovenian Contemporary Buildings

.


According to the Slovene legislative framework, particularly to the Energy Act, the system of energy

performance certification is defined in Rules on the methodology of construction and issuance of

building energy certificates (2009).

Classifications of Energy-efficient buildings

Passive house


19th Century 20th Century 21th Century

Different timber passive house technologies

a) Panel construction, b) Timber-frame wall element with I-studs I-joists), c) Solid wood construction

Passive Houses require less than 15 kWh/(m²yr) for heating or cooling (relating to the living space)

The heating/cooling load is limited to a maximum of 10 W/m2

Primary energy use may not exceed 120 kWh/(m²a).

Passive Houses must be airtight with air change rates being limited to n50 = 0.6/h.

In warmer climates and/or during summer months, excessive temperatures may not occur more

than 10 % of the time.

Jelovica houses Lumar Riko houses

.

THE HOUSE RE _ Vrhnika

ARCHITECT.

SONO ARCHITECTS

ground floor

section

Perfection of means and confusion of

goals seem to characterize our age.

Albert Einstein

THE HOUSE IN ŠUJICA_Šujica

ARCHITECT.

ARHITEKTURA STARC

ground floor section

THE HOUSE JS_ Sv. Gregorij

ground floor

elevation

ARCHITECT.

ARHITEKTURA STARC

THE HOUSE RANT _ Škofja Loka

ARCHITECT.

3 BIRO

ground floor

elevation

ground floor

section

THE HOUSE MJ _ Škofja Loka

ARCHITECT.

KOMBINAT

APARTMENTS ORTENIA_Olimlje

ground floor

section

ARCHITECT.

SOBA

THE HOUSE MJ _ Škofja Loka

ARCHITECT.

KOMBINATground floor section

ARCHITECT.

ARREA

ground floor

elevation

ARCHITECT.

DANS ARHITEKTI

THE HOUSE NMII _ Ljubljana

ground floor section

THE HOUSING IN SMRJENJE _ Smrjenje

ARCHITECT.

3 BIRO

ground floor

THE HOUSING IN SMRJENJE _ Smrjenje

ARCHITECT.

3 BIRO

situaton

ARCHITECT.

3 BIROground floor First floor

THE HOUSE G _ Gabrje

Passive house in Slovenia

veryimportant

fairlyimportant

not veryimportant

not at allimportant

don't know

80

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How important is protecting the environment to you

personally? (n=900) Slovenian public opinion reserch, 2013


The number of passive houses in 31 countries of Europe.

PASSIVE

HOUSE

CONSORTIUM

Passive House Days 2014 also in Slovenia!

Slovenian government is

supporting energy efficiency activities.

Certificates

University of Ljubljana | Department of Wood Science & Technology dr.Manja K. Kuzman 16

Tabl

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sust

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Graphical representation of the

shares of individual categories

in different building

assessment methods.

In recent decades several methodologies have been developed to assess the quality of buildings:

Natura Optimo XLT


Certificate for Building sistem

Active house a product of Slovenian know-how

University of Ljubljana| Department of Wood Science & Technology

"We believe that knowledge can give us a

relatively secure future. This is especially

true for companies coming from a sector

that is as demanding as construction”.

Lukič, Lumar IG

18

Active house concept, this highly energy-efficient

structure makes best use of solar energy and offers

utmost living comfort.

The built-in smart home installations,

the ceiling-mounted heating and cooling system,

the rooftop photovoltaic installations and

solar collectors in combination with

skylights are only one part of the concept.

outside rainwater collector

.

Case study: The Active House


Location | Dragočajna, Year | 2013

Surface | 151 m2

Construction time | 1 year

Structural engineer | dr. Luka Pavlovčič, Lumar IG

Energy efficiency | plusenergy (PHPP 15 kWh/m2a)

U-value (W/(m2K)) | wall 0,1; roof 0,1; floor 0,12;

window 0,87: glass 0,6; frame 0,86

Construction system | timber frame

Construction company | Lumar IG d.o.o.

Price | best practice Zeleni svinčnik 2013, ZAPS

House technique | air to water heat pump, floor heating,

solar collector, photovoltaic power station, comfort

ventilation with heat recovery,rain water collector

Architect | Jernej Gartner, Brigita Babnik, Gregor

Košorok, KOŠOROKGARTNER ARHITEKTI


Key technologies

• Solar façade

• Pre-fabrication of facade modules

• Energy concept based on renewable energy sources (mainly solar thermal energy)

• New heating- and DHW supply system installed between the façade and existing wall

• Decentralized ventilation systems with heat recovery

• Control and remote maintenance via internet

High performance renovation of residental building1_ Residential area Dieselweg 4 _Graz,A

.


- Façade solutions

Pre-fabricated façade module

Exemplary floor plan of renovated building – showing new thermal

envelope, integrated balconies and new lift [Source: Hohensinn ZT GmbH]Cross section – new thermal envelope

Renovation concept

Winter Summer


One building side is closed.

[Gap-Solution GmbH]

Sequence of assembly of the façade modules [Kulmer Bau]

First module is the lowest one. It is mounted on steel-bearing

angles, which are fixed on the plinth. All other modules rest on the

previous one. Therefore all joints are horizontally designed.

Assembly of the lowest

module

Module dimension:

12 x 3 m

Dimension of modules is fixed

by the line of the intermediate

floor and the window lintel.

Sequence of pre-

fabrication procedure in

the fabrication hall

[Gap-Solution GmbH]

Concept of pre-fabrication


Plus-energy renovation of residental complex2_Johann Boehmstrasse_Kapfenberg,A

“We do not inherit the ground our parents,

we borrow the ground of our children”

Antoine de Saint-Exupéry

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slovenian contemporary architecture wooden buildings in

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