JP4686020B2 - Roof repair method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roof repair method in which a new metal plate roofing material is installed and repaired without breaking and removing an old corrugated slate plate roofing material such as a factory.
[0002]
[Prior art]
When slate plate roofing materials such as large factories, warehouses, and gymnasiums become old, if they are removed and new roofing materials are installed, operation in the factory or use of warehouses, etc. becomes impossible during the construction period. Therefore, without removing the existing slate plate roofing material, a new roofing material is placed on top of it.
[0003]
In this case, a new metal plate roof material is overlaid on the existing slate plate roof material, and a long drill tapping screw is passed through the metal plate roof material and the slate plate roof material from above to support the slate plate roof material. When tightened and fixed to the main building, construction waste, garbage, dust, etc. fall into the building. Therefore, large-scale curing is required, such as setting up tents to prevent falling objects in factories in operation, warehouses in use, and gymnasiums. Moreover, drilling and tightening with a drill tapping screw may cause cracks, cracks, chips, etc. in the existing slate roofing material.
[0004]
In view of this, a roof repair method has been proposed in which a new metal plate roofing material can be installed without drilling holes in the existing slate plate roofing material (Japanese Patent Laid-Open No. 10-219936).
[0005]
In this construction method, a new metal plate roofing material is installed on an existing slate plate roofing material via a clamp metal fitting, and the upper portion of the metal plate roofing material 3 has a sectional box shape as shown in FIG. The clamp 11 is formed in the bottom surface 21 with a notch 22 opened at the front and rear edges, and the peak 11 of the existing slate plate roofing material 1 is formed. The notch 22 of the clamp fitting 2 is fitted between the nut washer 51 at the upper end of the existing hook bolt 5 that penetrates and is fixed to the purlin 6 and the mountain portion 11 of the slate plate roofing material 1 to clamp The metal fitting 2 is fixed around the tip axis of the hook bolt 5, the metal plate roof material 3 is overlaid on the fixed clamp metal fitting 2, and screwed to the clamp metal fitting 2 with a drill tapping screw 30 or the like. This method is advantageous in that no holes are made in the existing slate plate roofing material 1, so that inconvenience associated with the drilling does not occur.
[0006]
However, in this construction method, when the clamp fitting 2 is attached, when the clamp fitting is driven in such a manner that the notch 22 is inserted into the packing material 52 between the nut washer 51 and the peak portion 11 of the slate plate roofing material 1, Since there is a possibility that the slate plate roofing material 1 deteriorated by the impact may be cracked or cracked, the operator must drive it with care so as not to damage the slate plate. Further, after the metal plate roofing material 3 is installed, the load of the metal plate roofing material 3 is concentrated on the mountain portion 11 of the slate plate roofing material 1, so that the clamp fitting 2 is spaced at a relatively small pitch interval in order to disperse this load. Must be provided to support the metal plate roofing material 3.
[0007]
[Problems to be solved by the invention]
Therefore, the present invention ensures that the existing slate plate roofing material does not cause cracks, cracks, chips, etc., has good workability and good mounting stability, and ensures the durability of the slate plate roofing material after construction. It is an object to provide a repair method for an aging slate plate roof.
[0008]
The present invention is a roof repair method for installing a metal plate roof material covering an existing corrugated slate plate roof material in a substantially mountain shape crossing the mountain portion of the existing slate plate roof material, and the height is higher than the above mountain portion. A pedestal having a left and right leg ends that have a cross-sectional shape along the valley of the slate plate roof material, and a support portion that extends upward from the left and right sides of the pedestal and forms a seat at the upper end. In addition, using a clamp fitting provided with a through-hole at the top end of the pedestal portion, and supporting the clamp fitting across the mountain portion of the slate plate roofing material at the valley portions on both sides of the mountain portion at the left and right leg ends, The upper end of the existing hook bolt protruding from the peak is inserted into the through hole in the top end of the pedestal portion, and as a locking tool for locking the upper end of the hook bolt and the top end of the pedestal portion , it is ring-shaped on the inner periphery. Plural leaf spring claws project toward the center That the plate using a spring nut, the hook bolt above the clamp fitting the tip of the nail caused to engage with the screw shaft of the upper end of the hook bolt together with the plate spring nut to penetrate the upper end pressed against the above top end of the A long metal plate roof base material is installed on a clamp fitting fixed to a slate plate roofing material and straddling a plurality of mountain parts of the slate plate roofing material, and screwed to the seating surface of the clamping fitting. Then, a metal plate roof material is placed on the fixed base material, and the metal plate roof material is screwed and fixed to the base material.
[0009]
The clamp bracket supports the left and right leg ends in the valleys of the existing slate plate roofing material and locks it to the upper end of the existing hook bolt, so there is no risk of damaging the slate plate roofing material, And the mounting state is stable. In addition, the base material becomes a scaffold for the installation work of a new metal plate roof material, and the workability is good. Further, by using a leaf spring nut as a locking tool and using an existing hook bolt, the clamp fitting can be fixed to the existing slate plate roof material with ease of workability.
[0011]
As the clamp fitting, the support portion is formed by having a substantially W-shaped cross section with the pedestal portion at the center, the top end of the pedestal portion being a flat surface, and the left and right leg ends extending upward from the top end. A clamp fitting is used ( Claim 2 ). By making the clamp fitting W-shaped, the clamp fitting can be formed of a single metal plate.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 2, the existing corrugated slate plate roofing material 1 is placed on the purlin 6, the lower end engages with the purlin 6, and the upper end protrudes through the mountain portion 11 of the slate plate roofing material 1. The nut 50 is fixed to the purlin 6 by tightening the nut 50 through the nut washer 51 and the packing material 52 to the upper end of the hook bolt 5 to be engaged.
[0014]
The new metal plate roofing material 3 has a clamp metal fitting 2A fixed on the slate plate roofing material 1, and a base material 7 of the metal plate roofing material 3 is installed on the clamp metal fitting 2A. is there.
[0015]
As shown in FIGS. 1 and 2, the clamp fitting 2 </ b> A is a steel plate having a thickness of about 2.0 to 2.5 mm formed into a substantially W-shaped cross section, and the central pedestal portion 23 is a mountain of the slate plate roofing material 1. The cross section is mountain-shaped across the portion 11, the height is higher than the mountain portion 11, the top end 231 is a flat surface, and an elongated through hole 232 is formed on the top end surface. The left and right leg ends 24 of the clamp fitting 2 </ b> A are concave curved surfaces along the valley 12 of the slate plate roofing material 1. The leg end 24 extends upward from the top end 231 so as to be reversed, and the upper end is bent outward in the horizontal direction to form a support portion 25 having a seating surface 251 for supporting the base material 7. .
[0016]
As shown in FIG. 2, the clamp fitting 2 </ b> A is inserted into the through hole 232 (FIG. 1) of the top end 231 by inserting the upper end of the hook bolt 5 protruding upward from the peak portion 11 of the slate plate roofing material 1. It arrange | positions so that it may straddle, and is supported by the right and left trough part 12 of the peak part 11 with the left and right leg ends 24, and it fixes on the slate board roofing material 1 using the leaf | plate spring nut 8. FIG.
[0017]
The leaf spring nut 8 is made of a spring steel plate, and a plurality of claws 82 protrude obliquely upward toward the center from the inner periphery of the ring portion 81 as shown in FIG. The leaf spring nut 8 pushes up the claw 81 so that the tip of the existing hook bolt 5 is inserted into the center thereof, and the claw 82 is pressed with the ring portion 81 pressed against the top end 231 of the clamp fitting 2A through the washer 83. Is engaged with the screw shaft at the tip of the hook bolt 5. As a result, the left and right leg ends 24 of the clamp fitting 2 </ b> A come into pressure contact with the valley 12 of the slate plate roofing material 1 and are mounted and fixed on the slate plate roofing material 1. In this way, as shown in FIG. 1, the clamp fittings 2 </ b> A are arranged and fixed at linear positions in the direction orthogonal to the ridges 11 every several rows of the ridges 11 of the slate plate roofing material 1.
[0018]
The metal plate roof base material 7 is installed on the clamp fitting 2A arranged in this manner so as to pass over them. As shown in FIG. 1, the base material 7 is a long body having a substantially Z-shaped cross section, and an upper horizontal surface 71 is placed on the seating surface 251 of the support portion 25 of each clamp fitting 2A, and a drill tapping screw 9a is placed thereon. Is fixed onto the crank fitting 2A. In this way, a plurality of base materials 7 are arranged in parallel with each other at a predetermined interval in the longitudinal direction of the mountain portion 11.
[0019]
A newly installed metal plate roof material 3 is placed and fixed on the base material 7. As shown in FIGS. 1 and 2, the fixing is performed by screwing a drill tapping screw 9 b from above the peak portion 31 of the metal plate roof material 3 into the base material 7. In this case, a washer 91 having a lower end edge extending along the peak 31 is interposed between the head of the drill tapping screw 9 b and the peak 31.
[0020]
However, according to this roof repair method, a new metal plate roofing material 3 can be formed without making a hole in the existing slate plate roofing material 1 and without giving an impact to the slate plate roofing material 1 when mounting the clamp fitting 2A. Can be installed. In the clamp fitting 2A, since the left and right leg ends 24 are supported by the troughs 12 of the slate plate roofing material 1, the load is dispersed, and the troughs 12 are supported by the purlin 6, so that the troughs 12 It will not be damaged by such a load. In addition, the base material 7 serves as a working scaffold when the metal plate roofing material 3 is installed, and the base material 7 is installed linearly in a direction orthogonal to the mountain portion 11 of the slate plate roofing material 1. The screwing operation of the material 3 can be easily performed.
[0021]
4 and 5 show an embodiment of the present invention using a clamp fitting made of two members.
[0022]
The clamp fitting 2B is a mountain shape straddling the mountain portion 11 of the slate plate roofing material 1 and the top end 261 is a flat surface, and the left and right leg ends 27 have a curved shape along the valley portion 12 of the slate plate roofing material 1 and The support portion 28 is a separate body and has a substantially inverted hat shape in cross section. The left and right upper ends of the support portion 28 serve as a seating surface 281 that forms a horizontal plane. The width of the support portion 28 is smaller than that of the pedestal portion 26. A through hole 283 corresponding to the through hole 262 formed in the top end 261 of the pedestal portion 26 is formed in the flat bottom surface 282 of the support portion 28.
[0023]
When repairing the roof using the clamp fitting 2B, the tip of the existing hook bolt 5 is inserted into the through hole 262 of the top end 261 so as to straddle the mountain portion 11 of the slate plate roofing material 1 and The clamp metal fitting 2B is placed on the slate plate roofing material 1 while supporting the leg ends 27 of the slate plate.
[0024]
Next, the front end of the hook bolt 5 protruding from the top end 261 is inserted into the through hole 283 of the support portion 28, and the bottom surface 282 of the support portion 28 is superimposed on the top end 261 of the pedestal portion 26.
[0025]
Subsequently, the pedestal portion 26 is fixed to the slate plate roof material 1 integrally with the support portion 28 using the same leaf spring nut 8 as in the previous embodiment. Then, the long base material 7 is placed on the seating surface 282 of each clamp metal fitting 2B so as to be bridged over the plurality of clamp metal fittings 2B arranged and fixed at the linear position, and fixed with the drill tapping screw 9a.
[0026]
Finally, as in the previous embodiment, a new metal roof material 3 is screwed and fixed onto the base material 7 with a drill tapping screw 9b.
[0027]
According to the present embodiment, in addition to the same working effects as the previous embodiment, the clamp fitting 2B used in the present embodiment has a smaller width than the clamp fitting 2A used in the previous embodiment. Can be made lighter. Moreover, the space for storage and conveyance of the clamp metal fitting 2B before construction can be reduced by overlapping the pedestal portions 26 and the support portions 28 with each other.
[0028]
In addition, the clamp metal fitting 2B is good also as what integrated the base part 26 and the support part 28 by welding beforehand. Compared to the separate type, the one that is integrated has a larger space for overlapping, but requires less work to install on the slate roofing material.
[0029]
【The invention's effect】
According to the roof repair method of the present invention, since the existing slate plate roofing material is not drilled, there is no risk of damage to the slate plate roofing material due to the drilling, and the building can be used even during the construction period. .
[0030]
In addition, since the impact is not applied to the clamp fitting and the slate plate roof material when the clamp fitting is attached, the attachment work can be performed with peace of mind. In addition, since the load from the clamp member that supports the metal plate roof base material or the newly installed metal plate roof material acts in a distributed manner in the valleys of the slate plate roof material, the load load on the slate plate roof material can be reduced.
[0031]
In addition, since the base material of the metal plate roofing material is installed between the clamp fittings, this serves as a scaffold for the metal plate roofing material installation work, and the metal plate roofing material may be fixed to the base material extending linearly with a tapping screw. Therefore, the workability is far better than confirming the position of each clamp fitting covered with the metal plate roofing material and screwing and fixing it thereto.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a repair roof according to a first construction method of the present invention.
FIG. 2 is a front view of an essential part of a roof repaired by a first construction method.
FIG. 3 is a perspective view of a leaf spring nut used in the first construction method.
FIG. 4 is a perspective view of a clamp fitting used in the second method of the present invention.
FIG. 5 is a front view of an essential part of a roof repaired by the second construction method of the present invention.
6A is a front view of a main part of a roof repaired by a conventional construction method, and FIG. 6B is a bottom view of a clamp fitting used in the conventional construction method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Existing slate plate roofing material 11 Mountain part 12 Valley part 2,2A, 2B Clamp metal parts 23,26 Base part 231,261 Top end 232,262 Through hole 24,27 Leg end 25,28 Support part 251,281 Seat surface 3 New metal plate roofing material 5 Hook bolt 6 Purlin 7 Metal plate roof base material 8 Locking device (root spring nut)
9a, 9b Drill tapping screw

Claims (2)

In the roof repair method of installing a metal plate roof material covering this on the existing corrugated slate plate roof material, the height is higher than the above mountain portion in a substantially mountain shape crossing the mountain portion of the existing slate plate roof material, A pedestal having left and right leg ends that have a cross-sectional shape along the valley of the slate plate roof material, and a support that extends upward from the left and right sides of the pedestal and forms a seating surface at the upper end; Using the clamp fitting provided with a through-hole at the top end of the slate plate, the clamp fitting is supported on the valleys on both sides of the peak portion at the left and right leg ends across the peak portion of the slate plate roof material, and from the peak portion. A plurality of leaf springs in a ring shape on the inner periphery as a locking tool for inserting the upper end of the protruding existing hook bolt into the through hole in the top end of the pedestal portion and locking the upper end of the hook bolt and the top end of the pedestal portion Leaf spring with the claws projecting toward the center Used Tsu bets, the slate plate the clamp fitting the tip of the nail caused to engage with the screw shaft of the upper end of the hook bolt the plate spring nut to penetrate the upper end with pressed on the top end of the hook bolt Fixed to the roofing material, a long metal plate roof base material is installed on the clamp fitting fixed across the multiple peaks of the slate plate roofing material, and screwed to the seating surface of the clamping fitting and fixed. A roof repairing method comprising placing a metal plate roof material on the base material, and screwing and fixing the metal plate roof material to the base material. As the clamp fitting, the support portion is formed by having a substantially W-shaped cross section with the pedestal portion at the center, the top end of the pedestal portion being a flat surface, and the left and right leg ends extending upward from the top end. The roof repair method according to claim 1, wherein clamp metal fittings are used .

Images