| 摘要 |
A roofing material handling and sealing machine and method for installing partially-overlapping heat-sealable roll roofing material and the like. The machine consists of a frame having two spaced apart front wheels and one rear wheel, a heating element mounted to the frame and positioned on the underside thereof, and a lifting foot also mounted to the frame and positioned foward of the heating element. In operation, the two front wheels straddle the joint formed by the overlapping edge portions of two laid sheets of the roll roofing material, with the rear wheel pressing against the overlapping joint. The upper overlapping edge portion of the material is lifted by the lifting foot and the heating element is directed rearwardly so that when the machine is pulled along the overlapping joint, both contact surfaces on the overlapping edge portions of the material are heated to an extent sufficient to cause both contact surfaces to soften and thereby allow them to be sealably joined when the trailing rear wheel presses them together. The machine may be pulled manually along the overlapping joint or may be motorized by conventional methods.
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