| 摘要 |
A SHEET METAL EXTERIOR SHEATING ELEMENT (1) PARTICULARLY SUITABLE AS A ROOFING TILE.THE DESIGN OF THE ELEMENT AND ITS METHOD OF INSTALLATION ENABLES IT TO BE MANUFACTURED FROM SUBSTANTIALLY THINNER SHEET METAL THAN ISTYPICALLY USED.THIS MAKES IT COMMERCIALLY VIABLE TO REPLICATE A PLURALITY OF WOODEN SHINGLES IN A SINGLE ''MULTIPLE'' TILE. THE TILE HAS INTER-ENGAGABLE CHANNELS (7,9) ON ITS OPPOSING LONGITUDINAL SIDES, ONE CHANNEL (7) BEING ON THE UNDERSIDE AND THE OTHER CHANNEL (9) ON THE UPPERSIDE OF THE TILE. A MOUNTING TAB (10) EXTENDS FROM ADJACENT THE UPPERSIDE CHANNELS SUBSTANTIALLY CO-PLANAR TO BODY OF THE TILE. THE CHANNELS ENABLE TWO TILES (1A,1B) TO BE JOINED IN AN OVERLAPPING SIDE BY SIDE RELATIONSHIP WITH THEIR CORRESPONDING CHANNEL SECTIONS ENGAGED. EACH TILE CAN BE FIXED TO BE SUPPORTING STRUCTURE (2,16) BY THEIR MOUNTING TABS (10). A THIRD TILE (1C) CAN THEN BE JOINED LONGITUDINALLY OF THE FIRST TWO TILES BY ENGAGING ITS UNDERSIDE CHANNEL (7) OVER AND ABOUT THEIR JOINED UPPERSIDE CHANNEL SECTIONS (9). IT CAN BE ALSO BE FIXED TO THE SUPPORTING STRUCTURE AND THE STEPS REPEATED TO SHEATH A DESIRED AREA.(FIG 1)
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