Fitting-type folded-plate roofing material

Abstract

The present invention provides a fitting type with high crimp fastening force without loosening and disengagement at the crimp fastening junction due to pressure, which improves the mutual supporting force of the inner crimp side fitting part and the outer crimp side fitting part. Folded roofing material. The fitted-type folded-plate roofing material includes a base part in the center of the width direction of a rectangular metal plate, inclined side plate parts standing up from both sides in the width direction of the base part, and extending horizontally from the upper end parts of the inclined side plate parts. The horizontal part of the horizontal part, and the inner curling side fitting part and the outer curling side fitting part respectively erected on the free end part of the horizontal part, the cross section of the outer curling side fitting part is approximately mushroom-shaped, including the above-mentioned The end edge of the horizontal part stands up from the base side foot, the arched head provided on the upper end connected to it, and the side end side foot formed at the position extending from the arched head, the above-mentioned inner curl side The cross-section of the fitting part is approximately umbrella-shaped, including a foot standing up from the edge of the horizontal part and a mountain-shaped head connected to the upper end.

Description

technical field [0001] The present invention relates to a metal fitting-type folded panel roofing material, in particular to a roofing construction that can be easily and quickly connected the ends of adjoining roofing materials by seaming, is excellent in appearance, and has a curling edge. Fitting-type folded panel roofing material that has excellent strength against storms, etc. at the fastening joint. Background technique [0002] As a method of laying roofs for factories, warehouses, stores, etc., there has been known a construction method in which a roof support frame fixed to the roof base (beam) at constant intervals is installed on one side formed in the width direction. One metal flap roofing material formed by the inner curling side fitting part of the side edge part of the roof material, and the outer curling side fitting part (upper The other roof material adjacent to the above-mentioned one metal folded roof material formed by crimping) is seamed, and the meta...

AI Technical Summary

Problems solved by technology

[0004] However, in the roof panel of Patent Document 1, there is a problem that when upward pressure is generated on the main plate part due to blowing of wind, torque due to wind pressure or the like is applied to the inner bead side fitting. part (inverted L-shaped) and at least one of the outer hemming side fitting part, the hemming fastening joint part is easy to disengage, and when the operator walks on the roof and generates downward pressure, the above-mentioned hemming Edge fastening joints can also loosen or disengage

[0012] In the case of the prior art described above, the following disadvantages can be pointed out: in the boltless construction roof that is the object of the present invention, the roofing material tends to warp, that is, the roofing material warps easily due to wind pressure, or, Loosening and detachment of the hemming joints are easy to occur (Patent Document 1), and there is room for improvement in the hemming process (electric sealing process), the linearity of the ridge line, that is, the aesthetics of the roof paving appearance (Patent Document 1). Document 2), in addition, the shape accuracy of the inner / outer bead side fitting part is not good, the bending stiffness is small, and the joint force is low especially at the position where there is no support frame (fastening frame), etc.

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