According to the article, Cob - A Natural Alternative (Anderson, 2009), cob is a natural material that has constructed houses in many countries for hundreds of years. Cob homes are still standing today. Cob building is an inexpensive and Earth friendly. Cob building uses a simple mixture of clay, sand and straw fiber to create a durable structure. It is a well-known worldwide. In the United States, cob has replaced timber to create houses. People want to find the natural materials used, and therefore, people are interested in the cob. Soil and sand are basics of green material. It is normally mingled by foot or animals. A blender of straw fiber can flexible and tough to set them to stick together.
The purpose of this research paper is to describe the significance of the cob house and why it should build to improve Thai environment. First, the paper will discuss the benefits of cob house. Second, it will focus on how cob houses protect from natural disasters. Finally, it will show why cob material will be able to build future home foundations.
2. Benefits of cob house
2.1 Benefits of the environmental
According to the article, Questions and Answers about Cob (Dea Tech Research Inc, 2008), cob houses are formation came from nature. Natural material does not produce toxins and natural materials can be reused. Cob is proper to create natural walls and the natural wall can keep up inside temperature. The nature wall can make cool in the summer. The properties of vapor spread can control moisture. It imbibes smell in the cob house and it is an efficient noise obstacle. The natural wall also can make warm in winter. Natural walls collect energy from sunlight, and it released warmth during the night. So that inside of building has temperature. The room has a system for regulating the temperature. Cob wall was created one or two feet dense to keep warm and suitable for holding solar energy. Cob buildings can warm in winter and cool down in summer.
2.2 Benefits of healthy living
Cheung (2010) wrote that cob does not use chemical substances in the production. Soil is not abandoning pollution into the atmosphere and it makes the atmosphere pure. The manufacture of negative ions form soil can help to remove electromagnetic effect so it can help to clear the nature wall and it will not attract dirt. All of advantages of soil can cause people to enjoy living with natural materials. People can decorate the nature walls by making color clay and it make from color sand with mother of pearl or straw that it is enduring and beautiful. Cob buildings prefer soil paint replace using normal coloring. Cob buildings can be suck steam and emits. When the atmospheres become dry, the temperature would change for season. Cheung (2010) said:
Recent research shows that good internal relative humidity (RH) control benefits the health of the people living inside. Clay materials in our home minimize condensation. Lower RH thereby deters fungal growth...