ProVillage


ECO-BUILDING – PART 5: THE PROS OF BUILDING WITH STRAW BALES

Why build with straw bales? It can be said with great certainty that tens of thousands of people have been aroused to building their homes or other constructions with straw bales around the world. Until now, it has come to our attention that all around the world there are projects going on involving straw bale building, and the number is surely to grow with the awareness of the pros of building with straw bales.

Below are a few points which speak for the methods of incorporating straw when building with straw bales.

Energy efficiency

thermo slimAs the costs for heating and cooling rise, energy efficiency is gaining more and more attention.  It is said that a well designed and built straw bale home can lower the heating costs by 70 % compared to a conventional home. It can be considered as a significant saving.

Aesthetics

People are generally attracted to the thick walls which resemble medieval architecture or adobe homes in Latin America. A straw bale house has a totally different feel to living it, than a conventional house. The material is versatile enough to make various kinds of forms into the general building and firstly one just has to get to know the method in which way the combination of straw and other materials behave.

Acoustics/noise suppression
acoustics 004 png
Straw bale homes are remarkably quiet. The thick walls muffle sounds and diminish echoes. The most important aspects to take into consideration when planning a straw bale home is to get the correct balance of sound insulation, natural light and energy design.

At some locations around the world the technique of building strawhouses has been implemented when building recording studios. And it can be thought that workshops where noise producing machinery are operated, the strawbale walls would make conditions more bareable.

Fire rating

Homes built with straw are extremely fire resistant. A straw bale home is three times (3x) more resistant to fire than conventional homes – this is due to the fact that there is not enough oxygen in the bales for a fire to burn lively, and since the bales are covered with a thick and earthy render. In this case, one should think of a 5 cm layer of plaster covering the bales.

Environmental aspects

Millions of tons of straw is produced and burned every year. Instead, the straw can be used to produce a healthy and pleasant living environment. It also said that the amount of volatile organic compounds is less than in many other conventional buildings

See: VOC’s – Volatile organic compounds (http://en.wikipedia.org/wiki/Volatile_organic_compound)

The ease of building

Everybody can learn to build with straw bales after a few guidelines are taken into consideration. When building with straw bales, the most difficult task would be the taking into consideration of the framing, electronics,  plumbing, etc…

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