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 />
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