FIELD: heat insulation.
SUBSTANCE: evacuated casing comprises nonsolid or porous organic or inorganic filling material set inside the shell made of at least one multilayer rectangular barrier sheet (1), which comprises at least one polymeric or inorganic central layer (2) which insulates the filler from atmospheric gases, and top (4) and bottom layer (3) made of welded polymeric materials.
EFFECT: enhanced quality of heat insulation.
7 cl, 4 dwg
