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Building a Straw House

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This is the VOA Special English Development Report.Today we bring you a new take on an old tale. It's the story of the three little pigs and the big bad wolf that blew down one house made of straw and one made of sticks. The only house left standing was the one made of bricks. Now there is new evidence to suggest that houses built with bales of straw can be very strong. They are also environmentally friendly.

Pete Walker is a professor at the University of Bath in Britain. He and a team of researchers there have built a house made out of straw bale and hemp material.

During the next twelve months the team will study the effectiveness ofthese materials in home building. Professor Walker says there are many good reasons for using straw.

He says it is a renewable material that is readily available and does not cost much money. Professor Walker says straw takes in carbon dioxide as it grows. So it has no harmful effects on the environment. He says straw helps the environment in other ways. The straw bale walls are thick so the buildings require very little heating in the winter or very little cooling in the summer. The buildings require very little additional energy. Professor Walker says this reduces home operating costs. Italso reduces the effect on the environment. He says the current interest in straw bale houses is a direct response to the problem of climate change.

David Lanfear owns an eco-friendly home building service in the United States called Bale on Bale Construction. He says he laughed when some friendsfirst told him about houses built of straw.

But after doing his own research, he learned that building with straw bales makes a lot of sense. He has now helped to build more than ten straw bale houses and says the building material is becoming more widely accepted. To build the houses, he fills awood frame with tightly packed bales of straw. Next he coats the walls inside and out with layers of clay plaster. He says the common ideas about straw houses continue, including stories about the threat of fire.

Mister Lanfear says straw bale houses have done well when tested for fire resistance.And he says his builders use the same methods as traditional builders to keep out rain. He says: "We use what we call good shoes and a good hat, and that would be a solid foundation and a really good roof."

And that's the VOA Special English Development Report. Our reports are online at voaspecialenglish.com.

(Adapted from a radio program broadcast 05Oct2009)
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Education
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