Sheet panel assembly and supporting members therefor

Claim 1

A SHEET PANEL WALL ASSEMBLY COMPRISING A PLURALITY OF SHEET PANELS, EACH PANEL HAVING EDGE FORMATIONS AT OPPOSITE SIDE EDGES OF THE PANEL, SAID EDGE FORMATIONS BEING COMPLEMENTARY IN THE FORMATION OF AN INTERLOCKING JOINT OF SUBSTANTIALLY TRIANGULAR-RIDGE OUTER FORMED BETWEEN ADJACENT PANELS IN THE ASSEMBLY, SAID OUTER FORM BEING THAT OF THE EDGE FORMATION OF ONE OF SAID ADJACENT PANELS AND HAVING AN OPEN APEX AT THE TERMINAL EDGE OF SAID FORMATION, THE OTHER OF THE ADJACENT PANELS HAVING A TONGUE FORMATION EXTENDING THROUGH SAID APEX INTO LOCKING ENGAEMENT THEREIN, EACH PANEL HAVING AT LEAST ONE SUBSTANTIALLY TRIANGULAR RIDGE FOLD IN IT AT INTERVALS BETWEEN SAID OPPOSITE SIDE EDGES, THE FOLDS OF THE PANEL SHEET AT THE BASE OF EACH RIDGE BEING ONLY SLIGHTLY SPACED SUFFICIENTLY TO PROVIDE FOR EXPANSION AND CONTRACTION OF THE PANEL UNDER NORMAL TEMPERATURE CHANGES WITHOUT CAUSING THE FLAT PANEL PORTIONS BETWEEN RIDGES AND BETWEEN THE SIDE EDGES AND ADJACENT RIDGES TO BUCKLE, SAID INTERMEDIATE RIDGES AND SAID EDGE FORMATION RIDGES EXTENDING TO THE SAME SIDE OF THE PANELS IN SAID ASSEMBLY PRESENTING A SUBSTANTIALLY CONTINUOUS FLAT SURFACE ON THE OTHER SIDE OF THE ASSEMBLY, SAID PLURALITY OF PANELS FORMING A WALL HAVING SELF SUPPORTING VERTICAL RIGIDITY IN THE DIRECTION OF SAID RIDGES, A FOOTING EXTRUSION MEMBER HAVING A VERTICAL GUIDE WEB PORTION EXTENDING DOWNWARDLY WITH A HORIZONTAL LEDGE EXTENDING OUTWARDLY AT THE BOTTOM THEREOF SUPPORTING THE BOTTOM EDGE OD SAID WALL, RETAINING CLIP MEANS HOLDING SAID WALL ON SAID LEDGE AND BIASED AGAINST SAID VERTICAL GUIDE WEB SO AS TO IMPART THE STRENGTH AND FORM OF SAID EXTRUSION MEMBER TO THE RIGIDITY OF THE PANEL WALL AT ITS LOWER EDGE, AN EAVE SUPPORT EXTRUSION MEMBER HAVING A VERTICAL GUIDE WEB PORTION EXTENDING UPWARDLY WITH A HORIZONTAL LEDGE EXTENDING OUTWARDLY AT THE TOP THEREOF AND SUPPORTED ON THE UPPER EDGE OF SAID WALL, AND RETAINING CLIP MEANS HOLDING SAID UPPER EDGE UNDER SAID LEDGE AT THE TOP OF SAID VERTICAL GUIDE WEB PORTION AND BIASED AGAINST SAID VERTICAL GUIDE WEB, SO AS TO IMPART THE STRENGTH AND FORM OF SAID EAVE SUPPORT EXTRUSION MEMBER TO THE RIGIDITY OF THE PANEL WALL AT ITS UPPER EDGE, WHEREBY A LIGHTWEIGHT, STRONG AND EASILY ASSEMBLED WALL MAY BE BUILT WITHOUT THE USE OF ANY TOOLS OR ADDITIONAL FRAMEWORK OR ATTACHMENTS, SUCH AS SCREWS, RIVETS, NAILS OR BOLTS.