Abstract: An insulating element for use in building walls comprises two rigid slabs preferably of brick, and interposed insulating material preferably of expanded polyurethane. The interposed insulation projects out along the periphery of the slabs and is embedded in a complementary recessed part in the insulation of the adjacent element, leaving an interval between the slabs which is filled with mortar in order to unite the slabs. Adjacent elements are pressed against each other during installation in order to reciprocally compress the insulation along the separation plane. The slabs are fed continuously, on edge, in spaced relation, between superposed conveyor belts, thereby to form a tunnel into which the polyurethane is fed and fills by expansion. The slabs are then cut apart by grinding and the insulation is cut along the midline of the slot thus produced, after which the elements are packaged.

Abstract: An insulating element for use in building walls comprises two rigid slabs preferably of brick, and interposed insulating material preferably of expanded polyurethane. The interposed insulation projects out along the periphery of the slabs and is embedded in a complementary recessed part in the insulation of the adjacent element, leaving an interval between the slabs which is filled with mortar in order to unite the slabs. Adjacent elements are pressed against each other during installation in order to reciprocally compress the insulation along the separation plane. The slabs are fed continuously, on edge, in spaced relation, between superposed conveyor belts, thereby to form a tunnel into which the polyurethane is fed and fills by expansion. The slabs are then cut apart by grinding and the insulation is cut along the midline of the slot thus produced, after which the elements are packaged.