COMPOSITE VERTICAL SLOTTED BUILDING STONE WITH GAS-LAYER HEAT INSULATION Russian patent published in 2001 - IPC

FIELD: building elements; composite building stones. SUBSTANCE: stone has membrane-walls and frames fixed by means of adhesive to membrane-walls in-between; outer dimensions of frames equal those of membrane-walls; in this way air-tight structure is obtained. Membrane-walls are covered with heat-reflecting screen whose emissivity factor ranges between 0.1 and 0.3 in vicinity of gas slits. Frames are of different thickness their thickness reducing from that closer to heat source to external frame. Membrane-walls except that closest to heat source are provided with through holes, the last ones communicating with outdoor air. Membrane-walls are made of solid building material whose coefficient of heat conductivity is from 0.7 to 0.07 W/m C. microventilation of stone prevents increment of moisture accumulation in membrane-walls and frames. EFFECT: improved resistance of composing stone heat transfers; reduced percentage of mean gravimetric humidity. 4 cl, 5 dwg