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Free download - Vinnova

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STRATEGIES FOR THE FUTURE<br />

Wood<br />

Manufacturing<br />

– a high-tech<br />

sunrise industry<br />

Wood is beautiful, practical and strong,<br />

and it has more uses than people<br />

realize. In addition, it has such good<br />

environmental properties that<br />

using more wood instead of other<br />

materials would lower atmospheric<br />

carbon dioxide concentrations.<br />

A beautiful air control tower in Skellefteå, in the north of Sweden. The<br />

facade is made of glulam panel and is assembled in whole lengths.<br />

WE ARE NOT TALKING about a magic<br />

new material, but about ordinary wood,<br />

albeit subjected to high-tech processes<br />

in which its functional, aesthetic and environmental<br />

properties are improved in<br />

order to produce higher-value products.<br />

Nowadays wood research is conducted<br />

at most universities of technology,<br />

often in close cooperation with<br />

the timber industry and wood research<br />

institutes such as SP Trätek. VINNOVA<br />

has identified wood manufacturing as a<br />

fast-growing industry and contributes<br />

research funding to it. Two sectors that<br />

are considered to have growth potential<br />

are the interior industry and woodbased<br />

construction.<br />

Martinsons is a family firm that was<br />

founded in 1939. In those days it was just<br />

an ordinary sawmill.<br />

Laminated wood (glulam) was the first<br />

processed wood material. Nowadays it is<br />

often used for structural beams in many<br />

different types of buildings. Another<br />

processed product on the market is<br />

called solidwood. It consists of crossglued<br />

laminated timber that can be<br />

used for beams and other load-bearing<br />

structures. The technology ensures a<br />

strong, dimensionally stable and very<br />

light material. Solidwood can have a<br />

free span of up to 12 metres, but is only<br />

a quarter the weight of concrete.<br />

Martinsons, a company in the village<br />

of Bygdsiljum in northern Sweden, has<br />

conducted intensive research in order to<br />

develop the new products glulam and<br />

solidwood.<br />

– We have laid a good foundation for<br />

a successful business with excellent export<br />

opportunities, says Lars Martinson,<br />

the managing director.<br />

– The new products are important,<br />

but at the moment we are concentrating<br />

on developing effective and efficient<br />

system solutions. So we are designing<br />

standard modules that can be used in<br />

flexible applications. Building a wooden<br />

house should not be any more difficult<br />

than building one with Lego, says Lars<br />

Martinson. Martinson is very keen on<br />

the idea of building large apartment<br />

blocks of wood. A long-term research<br />

project has been started to produce finished<br />

modules with all the installations<br />

made at the factory. The buildings could<br />

then easily be assembled on the building-site.<br />

Five six-storey apartment blocks<br />

of wood with a total of 96 apartments<br />

have just been completed in Sundsvall,<br />

a seaside town in the north of Sweden.<br />

All those involved in the project were<br />

pleasantly surprised by the result.<br />

A SUNRISE INDUSTRY<br />

– We were worried that noise might be<br />

a problem in these buildings, says Lars<br />

Martinson. But our newly developed<br />

patented sound-absorption system<br />

works better than we expected.<br />

The residents agree that the buildings<br />

are quiet. The sounds that can be<br />

heard are soft and less invasive than in a<br />

building built of hard materials.<br />

Japan is the company’s largest export<br />

market at present. There is such great<br />

demand for glulam that a new production<br />

line has been built to meet it. One<br />

of the reasons why glulam is so popular<br />

nowadays is that it is both stronger<br />

and lighter than steel. The company’s<br />

Japanese customers have realized that<br />

wooden buildings offer a better chance<br />

of surviving an earthquake.<br />

V I N N O V A M A G A Z I N E | 1 7

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