THREE-LAYERED PANEL Russian patent published in 2008 - IPC E04C2/26 

FIELD: construction, particularly enveloping structures of light-weight buildings.

SUBSTANCE: three-layered wall panel comprises upper and lower facings adhered to each other through heater layer. The heater layer is made of rock wool with transversal fiber direction. The heater layer in length and width direction is composed of separate bars so that the bars are offset one from another along bar lengths. Reinforcing members are installed near supports between bar rows in direction of panel length. The reinforcing members extend for length l_a=(1/5-1/4)·l, where l is panel length. Upper and lower edges of reinforcing members have toothed profile. Teeth ends rest upon inner facing surfaces.

EFFECT: increased load-bearing ability.

3 cl, 6 dwg