Effect of the air channels in thermal insulating material on its thermal resistance

The article examines air channels formed as simple geometrical figures along the slab length to determine their influence on thermal insulation value of the slab. The channel designer in the slab is intended to help lessen the weight of the slab, with simultaneous preservation of the actual thermal parameters. The solution is aimed at the rigid as insulation materials, and its objective is to design a prefabricate for renovation of the external walls.