An eco house is a house that has an impact on the environment as less or not at all harmful to the environment.
A first step in building a house “eco – friendly” is the choice of materials suitable for construction. Materials used in construction of a new home are classified to be green after a few very simple criteria: to be recycled, the process of obtaining their not pollute the environment and consume as little energy and, finally, the material itself is not a source direct pollution or high energy consuming.
Materials that can be used to build a new house and have little impact on the environment are wood, straw and a special created blend of clay, earth, sand, straw and water.
Many potentially toxic products are used in modern house building, and we spend 20 hours a day in a home, office or workshop and breathe an air which often is more polluted than that of big cities. Also, the environmental impact of construction methods can be negative. For example, during manufacturing of materials or the moment of demolition. Recycling millions of tons of concrete, steel and plastic results in each year from demolition is impossible. But there are materials that are harmless and recyclable.
An eco-friendly homes has:
– Bioclimatic architecture that saves energy and benefits the most of solar input.
– Non-polluting and recyclable materials. For example wood, vaiuga, insulating bricks, hemp, insulating wool plant as cellulose, flax, cork, paints without chemical solute.
It is indicated for our health and others inform us about ecological and healthy materials that existed before you began to renovate or to build a house.
Here are some examples of construction materials that harm the health and / or the environment:
Reinforced concrete – highly polluting manufacturing and energy-intensive, difficult to recycle
Glass wool – mineral fibers are highly irritating to the airways. After 2001 manufacturers have changed the composition and reduced bio persistent of inhaled fibers, which allowed the downgrade of them as possible carcinogens by International Agency for Research on Cancer. But controversy continues for any manipulation (cut, placement or disposal) have used a type P3 mask, goggles, gloves and clothing well closed at extremities. To manufacture this insulation you need a great deal of energy and is poorly recycled.
Polyurethane sealants in polystyrene – presented in the polyurethane foam cause allergies. Gas engine manufacturing by-products contribute to ozone depletion. It is not biodegradable.