Building panel and wall structure formed therewith

Claim 1

A BUILDING WALL ASSEMBLY COMPRISING TWO PANEL ASSEMBLIES PROVIDING INNER AND OUTER WALLS AND A SPACE THEREBETWEEN, ONE OF SAID WALLS COMPRISING A PLURALITY OF IDENTICAL PANELS, EACH OF SAID IDENTICAL PANELS HAVING A GENERALLY PLANAR SHEET-LIKE MAJOR WALL PORTION AND MINOR WALL PORTIONS AT TWO OPPOSITE EDGES THEREOF, EACH OF SAID MINOR WALL PORTIONS HAVING AN ANGLED END PORTION EXTENDING FIRST INWARDLY OF SAID MINOR WALL PORTION, THEN PARALLEL TO SAID MAJOR WALL AND OUTWARDLY OF SAID MINOR WALL PORTION AND FINALLY TERMINATING IN A MARGINAL FLANGE PARALLEL TO SAID MINOR WALL PORTION AND DIRECTED TOWARD AN EXTENSION OF THE PLANE OF SAID MAJOR WALL PORTION, THE ANGLED END PORTION OF ONE OF SAID IDENTICAL PLANES HAVING A LONGER EXTENT PARALLEL TO THE MAJOR WALL PORTION THAN THE CORRESPONDING PARALLEL EXTENT OF THE OTHER ANGLED END PORTION ON THE SAME PANEL, WHEREBY ANGLED END PORTIONS OF ADJACENT PANELS CAN BE INTERENGAGED WITH THE PARALLEL EXTENTS IN ABUTTING RELATIONSHIP, THE OTHER OF SAID WALLS COMPRISING OTHER AND DIFFERENTLY SHAPED PANELS, EACH OF SAID OTHER PANELS HAVING INWARDLY OFFSET EDGE FLANGE INTEGRAL THEREWITH AND HAVING A FLANGE PORTION PARALLEL TO SAID MAJOR WALL PORTION, MEANS FASTENING SAID LAST MENTIONED FLANGE PORTION TO AN ANGLED END PORTION THROUGH THE EXTENT THEREOF PARALLEL TO SAID MAJOR WALL PORTION, AND OTHER FASTENING MEANS PASSING THROUGH THE ABUTTING PARALLEL EXTENTS OF INTERENGAGING ANGLE END PORTIONS.