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Build sustainably with straw: bales as house walls are cheap and insulate well

2022-12-16T18:48:36.944Z


Building sustainably with straw: bales as house walls are cheap and save a lot of energy Created: 12/16/2022, 7:30 p.m By: Jasmine Farah Is straw the building material of the future? The trend from the USA is also finding more and more followers in this country. This promotes climate protection and saves a lot of energy in these times - and hard cash. Sustainable, renewable and energy-saving:


Building sustainably with straw: bales as house walls are cheap and save a lot of energy

Created: 12/16/2022, 7:30 p.m

By: Jasmine Farah

Is straw the building material of the future?

The trend from the USA is also finding more and more followers in this country.

This promotes climate protection and saves a lot of energy in these times - and hard cash.

Sustainable, renewable and energy-saving: For some, the sight of a house with walls made of straw takes some getting used to.

While many today still rely on concrete, mortar and the like, the old, new trend from the USA will become more and more attractive here in the future.

Finally, straw bale houses have the advantage that they are sustainable and come from renewable raw materials.

Straw bales as house walls: sustainable and cheap

The straw that is produced from dry stalks and leaves of grain plants after harvesting is mostly used for animal feed or bedding.

Pressed into firm, compact bales, however, they can also be used as load-bearing walls.

According to the Fachverband Strohballenbau Deutschland e.

V., straw bales are even the building material of the future.

After all, in contrast to global cement production, significantly less carbon dioxide is emitted here.

A straw bale house is sustainable and inexpensive.

In these times it becomes more and more attractive.

© Venerala/Imago

For comparison: The latter causes four times as much as all international air traffic, as reported by the science magazine

Geo

.

Overall, it accounts for around eight percent of global CO₂ emissions.

In addition, carbon is bound in straw, which the grain plant has previously extracted from the air.

So as long as the straw bale house remains, the CO₂ stays in it and does not get into the atmosphere.

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Straw bale house has excellent thermal insulation

On the other hand, straw bales as a building material also offer the advantage that, according to the trade association, they insulate very well.

This is due to the straws lying close together, which protect against heat loss.

This means that in winter the heat stays inside and in summer it is nice and cool inside.

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This also saves money on insulating materials such as foam, mineral or glass fibers, which waste a lot of energy and valuable resources.

One village is already showing the way: in 2005 the first three-story house made of straw bales was built in the eco-village Sieben Linden in Saxony-Anhalt, followed in Switzerland in 2013 by the first straw bale hotel.

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Make the straw bale house weatherproof - with clay plaster

Other advantages are that the raw material is inexpensive and the raw material is completely untreated.

No chemicals or other substances are added to it.

With the added bonus that the straw bale house can later be composted or turned into biogas.

But what happens if a fire breaks out?

Aren't you literally trapped in a straw bale house?

This is not the case, the trade association reassures: "With compacted straw, i.e. straw bales, the straw bales are closed off from the supply of oxygen due to the pressing.

As a result, the material is considered to be normally flammable.” To be on the safe side, the walls are also plastered with non-combustible clay or lime on the inside and outside.

This makes the building weatherproof and completely protected against moisture and pests.

Source: merkur

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