Walls Many residential buildings, especially those built with the apartment system, are exposed to the problem of the spread of moisture and moths, and rainwater seeping into the building, and the walls are exposed to cracks and surfaces and damage to the paint, or to water seepage under the walls as a result of poor construction and poor finishing of the house and insulation of walls for commercial purposes or bad materials Used in construction, which weakens the structure of the house, and exposes Qantih to many health problems such as shortness of breath, asthma, orthopedic diseases in general, and many other problems.

Ways of wall insulation
Externally isolating the walls If the building is built in an area that is not densely populated, and is not surrounded by many buildings, it is sprayed with special tools and pumps with asphalt material, and the building is clad with stone or brick, as the asphalt layer forms an external insulation from the influence of moisture and rain problems, and the leakage of high heat inside the building . If the building is adjacent to several neighboring buildings, the walls are isolated in a special way by using rock wool to fill the voids in the wall, then the wool is compressed and pressed well to form a strong insulating layer.

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Thermal insulation of walls
Laying insulating strips in several stages, where the inner wall must be built with a thickness of between 20 to 25 centimeters, with a thermally insulated block, but attention must be paid to sealing the joints, if any, between the blocks so as not to allow heat to leak internally.

Laying polystyrene sheets of specific sizes, with the inner wall being 30 centimeters thick, and the block used for insulation with a thickness of 10 centimeters. Polystyrene panels can be replaced with rock wool. Laying insulating blocks of polystyrene sheets or rock wool with a thickness of 5 cm, provided that the wall is constructed with a thickness of 35 cm, and the inner and outer walls are the same size of 15 cm for each wall.

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Thermal outer insulation
It is done by placing a number of insulation layers before the final finishing stage, and this method is considered effective and one of the best and most successful methods, and it is called thermal plaster, and its characteristics are that it is economically inexpensive, suitable for modern and old buildings, and its results are effective in the long run, and some use special components that are developed Before painting the walls to reinforce the insulation of the walls, as the strength of the wall is enhanced inside and out.

Light foam concrete
Insulation is done in this way by mixing concrete components, which form a mixture that resembles foam foam, which are components of cement, sand, and chemicals that provide concrete with high porosity and lightness. Ordinary cement concrete.