Sven Wadman & Kevin Denham

Ekoprofilen

ekoprofilen@gmail.com

8 angles on sustainable building

Málaga, 13 September, 2018 Open Conference on Project Results

Jämtland Region, Sweden

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The Octagonal House - Fannbyn Jämtland

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From idea to implementation

Why?

Need for more sustainable solutions

Is it possible?

What products and services will be used?

Idea and developer: Sven Wadman

The project uses others’ knowledge and input during planning and development

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Wood as building material

900 years – Faroe Islands

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Solutions in the Octagonal House

An interior greenhouse for air purification

Smart ventilation with Termite inspired intake air.

Heat pump using exhaust air

Outer walls – IsoTimber 300mm wood modules with air channels

Organowood protection against rottening and fire

Cellulose fiber insulation for floor, roof and walls.

Energy production – solar electricity and heat from greenhouse and a pellets chimney

Closed cycle sewage system – waste back to plants

Patented solution for wind deviation

Minimal cold bridges

Egg tempera paint

Piece-of-cake construction!

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Energy SystemExhaust air from house feeded to greenhouse.

Plants purify air.

Air sent to heat exchanger.

Energy use reduced - less cold air needs to be warmed up in the winter, or warm air cooled down in the summer.

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Climate smart outer walls from IsoTimber

Wood and air in the walls

IsoTimber 300, U = 0,20 W/(m2 K)

IsoTimber wallsystem is made of wood and thousands of air channels.

IsoTimber is a material easily used for house renovation and expansion projects.

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http://www.jegrelius.se/wp-content/uploads/2014/04/Miljobedomning-IsoTimber.pdf

Traditional lightweight wall construction

IsoTimber wall element.

Simpler?

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Mounting IsoTimber wall

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http://www.jegrelius.se/wp-content/uploads/2014/04/Miljobedomning-Termotra.pdf

A cellulose loose fibre insulation produced in Sweden

Cellulose fibre insulation can return to the natural cycle since it is made of renewable material. Good material to add additional insulation in the future.

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Cellulosa loose fibre + boards

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http://www.avjord.se/

Paint in bags have a lower environmental impact thatn other paints like water-based latex paint.

Egg tempera paint ”Av jord”

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Reuse of old materialWood from the old timber house used for:

-Greenhouse frame

-Deck

The Octagonal house is built for EASY reuse in the future.

- Walls

- Insulation

- Wood

- Roof

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Laggarberg School, Timrå, 1975by Eco Cycle Architect Anders Nyquist

Photos from Anders Nyquist Arkitektkontor AB (next 3 slides)

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Reuse of old School from 1944

Reused:

- Doors

- Window (new energy saving glass)

- Only one new window

- Facade.

Added:

- Termite ventilation

- Heat exchanger,

- Energi storing roof

- New elevator

- New separating toilets

- New insulation of roof.

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Project smedia

Thank you!

Sven Wadman, env. eng. – founderKevin Denham, env. eng. – intern

More info:

Ekoprofilen.se