Stored heat. Like other dense materials, stores heat. In climates where it is necessary to store the heat gain for passive way, this mixture can balance the indoor climate. Save energy and reduce environmental pollution: No environmental pollution in relation to other frequently used materials. To prepare, transport and work this mixture requires only 1% of the energy required for the preparation, transport and processing of reinforced concrete or burnt bricks (to prepare 900 gr. Portland cement type is needed to burn 450 kg. Coal powder). Clay is one of the most abundant materials of the earth’s crust. The mixture is reusable: The clay does not react chemically at the molecular level as the cementitious mixtures, thus crude clay or mud can be reused indefinitely. The mud compared to other materials will never be a debris that contaminates the environment. Saves construction materials and transport costs: Generally the mud found in most product works digging the foundations can be used for construction. If this does not contain enough clay, it is added and contains much should be mixed with sand. It is therapeutic and healthy: Clay is used therapeutically to relieve rheumatic or pain beauty mask for its ability to prevent the growth of pathogens on the skin and help cell regeneration. It is proved that manipulating clay or mud is healthy for the skin and body tensions to download. Hand molded terminations walls: Building a house with raw clay step terminations is much like molding a piece of pottery, where the builder sculptor becomes a unique work. Suitable for self: Construction techniques in land may be performed by non-specialists. These techniques work are ideal for self that can be executed with simple and inexpensive tools, but at the same time are more laborious in execution. Preserve the wood and other materials: Keep dry wood elements and preserves when in direct contact with the clay, because of its low moisture balance from 0.4% to 6% by weight and its high capillarity. Insects and fungi can not destroy the wood in these conditions because the former require a minimum humidity of 14% to 16% and 20% more seconds to live (Möhler 1978, p.18). Also, the clay can preserve a small amount of straw in its mass.