JPH10131411A - Construction method for repairing slate roof, and repaired roof and roof member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lay a roofing member for repairing directly on an existing slate roof without a nailing strip at repairing a corrugated slate root. SOLUTION: A rigid foam layer 2 such as a rigid polyisocyzanate foam is laminated on its upper surface with an atmospheric corrosion resistant steel sheet 3 such as a hot dip aluminium-zinc alloy-coated steel sheet (a galvanium steel sheet) and on its under surface with an under surface member 4 such as a flat metal foil for insertion of a cylindrical projection to be a board shape body having proper bending stiffness, furthermore, a roofing member 1 is formed so that one end of the body is a fixing edge 5 and the opposite end is an engaging edge 6 engaged thereto. The roofing member 1 is laid directly on an existing slate roof 7 so that an end of a projection such as a hook bolt projecting from the roof 7 is inserted into the rigid foam 2, a flat portion 5e of the fixing edge 5 is driven by a drilling screw 9 to be fixed to a purlin member A, and the engaging edge 6 of the adjacent roofing member 1 is engaged and fixed to the fixing edge 5 of the fixed roofing member 1, which forms a repaired roof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing an existing corrugated slate roof which has been deteriorated and weakened, a structure of the repaired roof, and a roof material usable for the same.

[0002]

2. Description of the Related Art To repair a conventional corrugated slate roof, first, a plurality of piers (auxiliary materials) are arranged on the existing slate roof at a predetermined interval in a direction orthogonal to the slate wave, and this is replaced with the existing slate roof. Attach to the lower purlin with a drilling screw and then fix the drilling screw fixing position at the purlin fixing position of the relevant pier, install a new slate roof member (roof material for repair) on it, In general, this is performed by fixing to a crosspiece with a drilling screw or the like.

[0003]

However, in the above-mentioned rehabilitation method, the work of laying the pier, the time of inking, and the time of fixing the roofing material to the pier are required. It was not the way. On the other hand, a renovation method of directly laying a new slate roof member on the existing slate roof is also conceivable, but if the waveform pitch of the old and new is shifted, the new slate roof part corresponding to the valley of the existing slate roof will sink There was a possibility of causing uniform deformation.

[0004] Therefore, the present invention can lay a roofing material directly on an existing slate roof without using an auxiliary material such as a pier, so that the labor for repair work can be reduced, and the strength of the repaired roof can be sufficiently increased. The purpose of this project is to provide a new slate roof repair method that can be secured, the structure of the repaired roof, and roofing materials.

[0005]

[Means for Solving the Problems] To solve such problems,
The present invention forms a flat plate body with a flat back surface by laminating at least a hard foam layer capable of projecting into the back surface of the weather-resistant steel sheet,
This one end is formed with a fixing edge having a flat portion and an engaging portion via a draining portion, and a fitting edge which can be fitted and locked from the outside of the fixing edge at the opposite end. Prepare a roofing material having an extended configuration, lay one piece of roofing material on the existing slate roof, fix drilling screws etc. from the flat part of the fixing edge to the existing roof part The fitting edge of another roofing material is engaged with the fixing edge, and the adjacent roofing material is laid in a connected state, and the fixing edge is fixed in the same manner as described above. The present invention provides a slate roof repair method characterized by laying a desired number of roof materials directly on an existing roof. When laying the roofing material directly on the existing slate roof, it is preferable to cut off the protruding ends of the hook bolts and the like protruding on the slate roof, but when it enters the hard foam layer and the tip fits in the foam layer Does not necessarily need to be removed.

Further, the present invention is a roof in which a slate roof is modified, wherein at least a hard foam layer such as a hard polyisocyanurate foam into which projections can be inserted is laminated on the back surface of a weather-resistant steel sheet such as a gallium barium steel sheet. A flat body with a flat back surface is formed, and one end is formed with a fixing edge having a flat portion and an engagement portion through a drainage portion, and the other end is covered from outside the fitting edge. A plurality of roofing materials having a configuration in which fitting edge portions that can be fitted and extended are laid directly on an existing slate roof, and the roofing material is passed through a slate plate from a flat portion of the fixing edge portion. With a drilling screw that leads to
Provided is a renovated roof structure having a configuration in which an adjacent roofing material is configured such that a fixing edge portion and a fitting edge portion are fitted and locked to each other and connected to each other. In the above description, hook bolts and the like protruding on the existing slate roof can have their protruding ends cut off as necessary, but the protruding hook bolt ends protrude into the hard foam layer portion of the roof material. The flat backside of the roofing material can be installed directly on a slate roof.

Still further, the present invention provides a weather-resistant steel sheet having at least a rigid foam layer on which a protrusion can be inserted is laminated on the back surface to form a plate body having a flat back surface. An existing roof having a fixing edge portion having a flat portion and an engaging portion, and having a configuration in which a fitting edge portion capable of being fitted and locked from the outside of the fitting edge portion is extended at an opposite end. It also provides roofing material that can be laid directly on top. The roofing material has a flexural rigidity of about 3.
0 × 10 ⁵ kgcm ² or more (380 mm width, same hereafter)
Preferably,

According to the present invention, the roofing material can be efficiently and directly fixed on the existing slate roof using drilling screws or the like without installing a pier (auxiliary material). Since the roofing material can be laid regardless of the waveform and pitch of the roof, much labor can be saved and the work efficiency is extremely high as compared with the conventional repair method and roof structure. Due to the sufficient bending rigidity of the roofing material, even if the roofing material is fixed to the valley or sloping part of the existing slate roof, there is no risk of bending the roofing material or sinking the fixed part, ensuring sufficient roof strength And the renovated roof is simple and has good finish. The protruding ends of the hook bolts and the like protruding on the slate roof can be cut off, but can be inserted into the hard foam layer and stored. The roofing material can be stably and flatly constructed without obstruction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. A roofing material 1 according to the present invention is to be laid on an existing slate roof, and as shown in FIG. A plate-like body having a configuration in which a flat back surface member 4 is laminated on the back surface of the layer 2 so that a rod-like projection can protrude into the hard foam layer, and has such a rigidity that it is not deformed by driving of a drilling screw or the like. In addition, this one end portion is formed as a fixing edge portion 5, and the weather-resistant steel plate 3 portion at the opposite end is extended to be fitted and locked to the fixing edge portion 5. It has become.

The hard foam layer 2 is most preferably a hard polyisocyanurate foam, but may be a hard polyurethane foam, a polystyrene foam, or the like, which has appropriate cushioning and heat insulating properties, and is suitable for fixing members such as hook bolts. The protrusions are formed of a flexible foam resin having flexibility so that they can penetrate into the layer, and are brought into close contact with the back surface of the weather-resistant steel plate 3 (the entire surface including the back surface of the fixing edge 5 except for the fitting edge 6). The thickness of the layer is preferably about 5 mm or more so as to ensure sufficient rigidity and if the projection end of the hook bolt or the like fixing the existing slate is short, the projection end can be inserted into the layer and stored. Those having a thickness of 10 mm or more are particularly preferred.

The weather-resistant steel plate 3 is most preferably a galvanized steel plate or the like in terms of performance and cost. However, a hot-dip galvanized steel plate, a stainless steel plate, a fluororesin-coated steel plate, an aluminum plate, a zinc aluminum alloy Sheets and other aluminum alloy sheets can also be used. As shown in the figure, the shape is most preferably a corrugated shape from the viewpoint of rigidity, but it may be formed in a concavo-convex shape in which a flat surface is continuously stepped, or may be formed in a flat plate shape. The thickness is, for example, 0.2
Those having a thickness of 7 mm or more are preferable, and those having a thickness of 0.35 mm or more are particularly preferable.

The back material 4 is mainly made of a metal foil such as an aluminum foil or a paper material capable of maintaining a flat shape, and the main material is laminated with a plastic film as required for adhesiveness and water resistance. It is formed. In addition, although the back surface material 4 is not essential, it is preferable to laminate the hard foam layer 2 in order to further stabilize the thickness or to form the back surface as a flat surface. When the rigid foam layer 2 is made of styrofoam or the like, the back material 4 is preferably provided.

It is preferable that the roofing material 1 has a multilayer structure in terms of bending rigidity. The roofing material 1 has a configuration in which the weather-resistant steel sheet 3 and the hard foam layer 2 are laminated at least. And a multi-layer structure in which a back material 4 is laminated. The flexural rigidity of the roof 1 as a whole plate is about 3 × 1
0 ⁵ kgcm ² or more, preferably about 6 × 10 ⁵ kgcm
² or more is good.

The fixing edge portion 5 forms a rising portion 5a along one side end of the weather-resistant steel plate 3, and forms a locking portion 5b slightly projecting inward of the plate above the rising portion 5a. An upper surface portion 5c having a slightly wider width is formed from the locking portion 5b through an inclined surface, and a first drain groove 5d is formed in the upper surface portion 5c. A flat portion 5e (also serving as a second drain groove portion) is formed, and the outside of the flat portion 5e is raised, and then turned outward to form an edge portion 5f. On the lower side, a hard foam layer 2 is formed.

The fitting edge 6 is formed along the other end of the weather-resistant steel plate 3, and the fitting edge 6 is fitted to the fixing edge 5 from above the edge 5 f on the outside of the fitting portion 6 a. A folded edge portion 6b that can be locked to the locking portion 5b is formed. The rigid foamed layer 2 is not formed below the fitting edge 6 to ensure the fitting action.

The roofing material 1 is manufactured by, for example, roll forming. After forming the weather-resistant steel plate 3 into a predetermined corrugated shape, a hard polyisocyanurate resin or the like is sprayed on the weather-resistant steel plate 3 and laminated. A flat back material 4 may be further laminated on the resin layer, and the laminate may be heated to foam the hard polyisocyanurate resin to form the hard foam layer 2 having a predetermined thickness.

In the method of repairing a slate roof according to the present invention, first, a hook bolt or the like (hereinafter, referred to as a fixing member) 8 for fixing the existing slate roof 7 to the purlin member A is located above a nut protruding above the slate roof 7. 2 (FIG. 2)
(Dotted line portion) is cut off as needed. Note that if the projection end 8a of the fixing member 8 fits in the hard foam layer 2, the projection end 8a does not have to be cut off. Then
The roofing material 1 is placed one by one on the existing slate roof 7 with the length direction of the roofing material 1 facing the eaves ridge. At this time, the protruding end portion 8a of the fixing member 8 or the cut end portion where the protruding portion remains may be made to penetrate the back material 4 of the roofing material 1 and protrude into the hard foam layer 2 as shown in FIG. .

Further, after the position of the purlin member A has been marked out as required, as shown in FIG. 2, a drilling screw 9 (in the figure, waterproofness) is fixed to the flat portion 5e of the fixing edge 5 of the roofing material 1. Then, the fixing edge 5 of the roofing material 1 is fixed by driving through the existing slate roof 7 and screwing into the purlin member A. When the purlin is made of wood, it is needless to say that it may be fixed with nails instead of screws. At this time, since the roofing material 1 has a bending rigidity equal to or more than a predetermined value, even if the drilling screw 9 is located at a valley portion or an inclined portion of the existing slate roof 7, the fixing edge portion 5 into which the screw or the like is driven is fixed. The drilling screw 9 is not deformed, regardless of whether the screw-in place is located at the peak, the valley, or the middle of the existing slate roof 7.
Can be reliably driven and fixed. In addition, as shown in FIG. 5, not only the flat portion 5 e of the fixing edge portion 5 but also the driving of the drilling screw 9 into the intermediate portion (the portion having a wave shape in the figure) of the roofing material 1 can be performed based on the bending rigidity. It is possible.

Next, as shown in FIG. 2, the fitting edge 6 of the adjacent roof material 1 is fitted to the fixing edge 5 of the roof material 1 fixed as described above from the side of the edge 5f. After the edge 6b of the joining edge 6 is engaged and connected to the engaging portion 5b, the fixing edge 5 on the other side is fixed on the existing slate roof 7 in the same manner as the roof material 1 in which the fixing edge 5 is laid first. Fixed to. In this way, the desired number of roofing materials 1 can be sequentially connected and laid directly on the existing slate roof 7 one after another.

According to the construction method of the present invention, as shown in FIG. 2, each roof material 1 directly laid on the existing slate roof 7 is used.
Is fixed by a drilling screw 9 driven into the flat portion 5 e of the fixing edge 5, and the other end is covered with the fitting edge 6 on the fixing edge 5 of the adjacent roofing material 1. By fitting and locking, the renovated slate roof is connected and fixed as a whole. The renovated slate roof with this configuration is
It is excellent in terms of strength due to its high bending rigidity, and in the connection portion with the adjacent roofing material 1, the driving portion of the drilling screw 9 is completely covered with the fitting edge portion 6, so that it is preferable in appearance. In addition, corrosion of the drilling screw 9 can be prevented. Furthermore, a first drain groove 5d and a second drain groove are formed below the fitted edge 6 on the fixing edge 5, and an end edge 6b of the fitted edge 6 is a locking portion. Since the draining portion is configured to be locked from below with respect to 5b, intrusion of water can be reliably prevented.

FIG. 3 shows a preferred construction example of the eaves portion of the renovated slate roof. In other words, the eaves wrap 10 is fixed to the eaves of the existing slate roof 7 so as to wrap the leading edge, and the eaves end of the roofing material 1 is located closer to the ridge than the eaves end of the existing slate roof 7. A predetermined width portion at the tip of the eaves of the slate roof 7 is a portion where the roofing material 1 is not laid (a roof material non-laying portion), and the existing rain gutter 11 already attached to the eaves of the existing slate roof 7 before the repair is left as it is. It is configured. In this case, the width of the roofing material non-laid portion is increased or decreased by the inclination of the roofing material 1, but is set so that rainwater flowing down on the roofing material 1 does not climb over the existing rain gutter 11.

Here, the eaves wrap 10 is formed by bending a weather-resistant steel plate, and the existing slate roof 7 and the roof material 1 are formed.
Between the front slate roof 7 and an eaves front surface 7a of an existing slate roof 7 by bending the edge of the front surface side 10a into an appropriate length inside the end of the roof material 1.
The end surface side portion 10b and the back surface side portion 10c are formed so as to extend from a to the end surface 7b and the back surface 7c, and both the front side end portion and the back surface side end portion are folded back to the front side to form a folded portion. The eaves wrap 10 is fixed to the existing slate roof 7 by driving a drilling screw 9 into an appropriate position on the front side 10a. Also, the front side 10a
It is preferable to attach a waterproof sheet 12 made of an aluminum material or the like so as to cover the screw head of the drilling screw 9 at the place where the screw is driven.

According to the above-mentioned eaves structure, even if a steel plate such as a gallivalium steel plate having a smaller resistance to rainwater flow than a slate roof is used as the weather-resistant steel plate 3 of the roof material 1, the roof material 1 must be covered. The rainwater that has flowed down falls on the front side 10a of the eaves wrap 10, and falls on the existing rain gutter 11 along the front side 10a, so there is no need to replace the existing rain gutter 11. Further, the eaves wrapping 10 hides the eaves tip, so that the appearance is preferable. Further, since the roofing material 1 is retracted from the eaves tip to the back, there is no pressure on the person looking up.
In the figure, the back of the eaves of the roofing material 1
The notch 13 is provided so that the drilling screw 9 for fixing the notch does not abut, but the notch 13 does not necessarily have to be formed.

FIG. 4 shows a preferred construction example of the ridge portion of the above-mentioned renovated slate roof. The roofing materials 1 and 1 on both sides of the ridge are not connected and are arranged with their tops open,
Drilling screws 9 are fixed to the purlin member A by driving a drilling screw 9 into the ridge portion of each roofing material 1, 1, and the roofing materials 1, 1 are covered so as to cover these screwed-in portions and cover the gaps.
The ridge covering material 14 is attached over the ridge end surface. The ridge covering material 14 is formed by bending a weather-resistant steel plate. A long weather-resistant steel plate is formed along the ridge in a curved shape along the slope of the ridge, and is fixed in a fixed state. Both edge portions are slightly bent downward so as to urge the upper surfaces of the roofing materials 1 and 1 at the edges, and are appropriately spaced in the length direction on both side portions sandwiching the ridge portion. Drilling screws 9 are driven in and fixed to the roof materials 1, 1. A waterproof sheet 12 made of an aluminum material or the like is attached to the screw driving portion so as to cover the screw head of the drilling screw 9.

FIG. 5 shows a preferred construction example on the wife side of the renovated slate roof. The existing wife-side covered slate roof 20 laid so as to cover from the wife-side upper surface to the wife-side side surface of the main house is left as it is, and the roof material 1 laid at the wife-side end is provided with a drilling screw 9 at an intermediate portion (wave shape). Is fixed to the purlin member A, the screwed portion is covered, and the side surface 20b and the end surface 20c of the existing wife-side covered slate roof 20 are covered from the wife-side upper surface to the wife-side side surface. Is inserted between the existing wife side slate roof 20 and the purlin member A constituting the wife side surface.
5 is attached.

The wife-side covering material 15 is formed by bending a weather-resistant steel plate, and has an upper surface portion 15a and a side surface portion 15b that cover the wife-side upper surface and the wife-side side surface. In this state, the edge is slightly bent downward so as to urge the upper surface of the roofing material 1, and the side end covers the end face 20 c of the existing wife-side covered slate roof 20 and the existing wife-side slate roof 20. Is formed in an inverted U-shape so that it can be inserted between the wife side surface portion of the purlin and the wife side covering material 15.
Drilling screws 9 are driven into appropriate portions of the upper surface portion 15a and the side surface portion 15b to be fixed to the roofing material 1 and the purlin member A constituting the wife side surface. A waterproof sheet 12 made of aluminum or the like is attached so as to cover the head.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a roofing material according to the present invention.

FIG. 2 is a lateral cross-sectional view showing a configuration example of a renovated roof according to the present invention.

FIG. 3 is a longitudinal sectional view showing an example of the configuration of the eaves of the renovated roof according to the present invention.

FIG. 4 is a longitudinal sectional view showing a configuration example of a ridge portion of the renovated roof according to the present invention.

FIG. 5 is a lateral cross-sectional view showing a configuration example on the wife side of the renovated roof according to the present invention.

[Explanation of symbols]

 A Purlin member 1 Renovation roofing material 2 Hard foam layer 3 Weatherproof steel plate 4 Backing material 5 Fixing edge 6 Fitting edge 7 Existing slate roof 8 Fixing member 9 Drilling screw 10 Front wrap 11 Existing rain gutter 12 Waterproof sheet 13 Notch 14 Wing covering material 15 Wife side covering material

Continued on the front page (72) Inventor Hiroshi Sakata 200-7 Fukui-cho, Ashikaga-shi, Tochigi

Claims (5)

[Claims] At least one hard foam layer into which projections can penetrate is laminated on the back surface of a weather-resistant steel plate to form a plate body having a flat back surface. A roof material having a configuration in which a fixing edge portion having a portion and a fitting edge portion capable of being fitted and locked from the outside of the fixing edge portion on the opposite end is provided, is provided. A roofing material is laid on the slate roof of the above, and drilling screws etc. are fixed from the flat part of the fixing edge to the main house of the existing roof, and the fitting edge of another roofing material is covered on this fixing edge. The adjacent roofing material is laid in a connected state by fitting and locking, and the fixing edge is fixed in the same manner as described above, and thus a desired number of roofing materials are laid directly on the existing roof. Slate roof renovation method. 2. The slate roof repair method according to claim 1, wherein a protruding end portion of a hook bolt or the like protruding from the existing slate roof is cut off, and a roof material is laid directly on the slate roof. 3. A roof in which a slate roof has been renovated,
At least a rigid foam layer into which projections can be inserted is laminated on the back surface of the weather-resistant steel plate to form a plate body having a flat back surface, and a fixed portion having a flat portion and an engaging portion at one end portion through a drain portion. A plurality of roofing materials having a configuration in which a fitting edge portion capable of being fitted and locked from the outside of the fitting edge portion at the opposite end is formed on the existing slate roof. Laying directly, the roofing material is fixed with a drilling screw etc. from the flat part of the fixing edge to the main building through the slate plate, and the adjacent roofing material is engaged with the fixing edge and the fitting edge and engaged with each other. A renovated roof with a concatenated configuration. 4. The renovated roof according to claim 3, wherein a protruding end of a hook bolt or the like protruding from the existing slate roof projects into the hard foam layer portion of the roofing material. 5. A plate body having a flat back surface is formed by laminating at least a hard foam layer into which projections can penetrate on the back surface of the weather-resistant steel plate. It is possible to lay directly on an existing roof having a configuration in which a fixing edge having a portion is provided, and a fitting edge that can be fitted and locked is extended from the outside of the fitting edge to the opposite end. Roofing material.