JPH08226203A - Roof repairing method - Google Patents

Abstract

PURPOSE: To improve strength entirely for a building on repairing the roof for the building by a method wherein reinforcing materials for reinforcing the existing building frame and the roof bed are arranged and fixed, extending from the roof bed to the building frame. CONSTITUTION: With an existing roof removed, reinforcing materials D are arranged in the form of diagonal bracing to sheathing roof boards 5 on the roof bed B and fixed continuously to a ridge beam, purlins and pole plates, and thereby strength can be improved for the building A and the roof bed B. Then, asphalt roofing β is laid all over the reinforcing materials D and a backing materials G1 on the lower tier is laid thereon, and a new roofing material F1 is mounted on the backing material and fixed to the roof bed B with fixtures α. Then, one end of a backing material G2 on the upper tier is mounted on the fixing piece 19 of the new roofing material F1 on the lower tier, and an insert edge 14 of a new roofing material F2 on the upper tier is fitted into a fitting groove 17 of the new roofing material F1 on the lower tier, and the new roofing material F2 on the upper tier is mounted on the backing material G2 on the upper tier. Such a process of work is repeated, starting from the eaves side and extending to the ridge side, and thereby a new roof E is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method for repairing an existing roof of a building or a structure with a new roof,
More specifically, a refurbished structure in which a new roof is formed after improving the strength of the building by arranging the existing rafters that have become old, the roofing basement such as field boards, and the reinforcing material that enhances the strength of the existing roofing material. It is about.

[0002]

2. Description of the Related Art Conventionally, as a roof repairing method of this type,
A method of removing all old roofs that have become old, and simply forming a new roof on the roof base of existing rafters, floor boards, etc.,
In general, a structure in which a new roofing material is attached directly onto an existing roofing material or through a roofing base such as a new rafter or a waterproof sheet such as a roofing is used.

[0003]

However, in such a refurbished structure, it is possible to replace an old roofing material that is old with a new roofing material, or to form a new roofing material on a damaged existing roofing material. Only the technical idea of concealing the existing roof is taken into consideration, and the technical idea of improving the strength of the existing roof substrate (field board) and skeleton (eaves girder, purlin, purlin, rafter, etc.) of an old building is taken into consideration at all. It wasn't included. For this reason,
The roof base and the structure of the building after the renovation are burdened, the strength is weak, especially the earthquake resistance is extremely poor, the new roof material is dropped due to the occurrence of an earthquake, typhoon, etc., the roof base and the structure are damaged,
Occasionally, damage such as the collapse of buildings occurred.

Further, when a new roof is formed on the existing roof, the roof has a double structure. Especially, when the roof material is a heavy tile, the weight of the entire roof increases and the existing roof is increased. The structure is burdened and weak in strength, and the roof may fall off due to the occurrence of earthquakes, typhoons, etc., and damage such as roof underlayment, structure damage, and building collapse may occur.

[0005]

In order to eliminate such drawbacks, the present invention is a reinforcing material for reinforcing the strength of an existing skeleton and roof base after removing an existing roof and before repairing with a new roof material. Is proposed from the roof basement to improve the strength of the entire building and to form a new roof material so as to cover the reinforcing material.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a roof repairing method according to the present invention will be described in detail below with reference to the drawings. Fig. 1 is a perspective view showing an example of a roof structure after being roofed by using the above-mentioned repairing method, and Fig. 2 is a sectional view thereof, in which an existing roof described below is removed and a new roof is then roofed. Is. That is, in the figure, A is the frame of the existing building, B is the roof base of the existing building, D is a reinforcing material, E is a new roof, α is a fixture such as a nail,
β is a new asphalt roofing and γ is a void.

FIGS. 3 and 4 show an example of an existing roof C having a tiled roof structure as shown in the drawings. That is,
As the structure of the existing roof C, as shown in the perspective view of FIG. 3 (a) and the sectional view of FIG. 3 (b), the rafters 1 forming the skeleton A, the base plate 5 forming the roof base B, mainly Alfalto roofing 6 for waterproofing, roof tile 7, which is a mounting guide,
The roof tile 8 and the fixture α are used.

To explain further, the existing roof C is provided with an asphalt roofing 6 on a field board 5 laid and fixed on the rafter 1, and further, an asphalt roofing 6 is arranged thereon at an interval according to the working width of the roof tile 8 7 is attached, and the roof tile 8 is mounted thereon by a fixture α such as a nail, a dragonfly (a copper wire is wound around the nail head), or a copper wire.

4 (a) to 4 (c) show a tiled roof structure called a earth-roofing structure, which is a solid roof structure as shown in FIG. 4 (b) and a thatched roof structure as shown in FIG. 4 (c). It is an existing roof C that is made of a structure and is filled with a thatched soil 9 containing clay, plaster, mortar, concrete or the like as a main component between the base plate 5 and the roof tile 8 to prevent the roof tile 8 from rattling. In addition, 10 is a retaining rod.

In the present invention, these existing roofs C are first removed, and at least the roof tile 8 and the roof tiles 7 and the fixture α are removed for the roof with a roof structure, and the roof tile 8 for the roof with a roof structure. The thatched soil 9 and the retaining rod 10 are removed, and the asphalt roofing 6 is
It may not be removed.

Further, the roof 8 constitutes the existing roof C.
In addition to (main roof tiles, ceramic roof tiles, clay roof tiles, slate roof tiles, concrete roof tiles, etc.), various metal roofing materials, new roof tile materials, asphalt singles, etc. are similarly removed.

FIG. 5A is a perspective view showing a typical example of the reinforcing material D, which is made of, for example, a narrow and long thin plate-shaped steel material, wood, synthetic resin material, or a composite material thereof. Yes,
As shown in FIG. 5 (b), after removing the existing roof C,
The strength of the skeleton A of the existing building and the strength of the roof substrate B are improved by laying and fixing them in a braced manner from the top of the base plate 5 to the skeleton A with fixtures α such as nails and screw screws.

As shown in FIGS. 6 (a) to 6 (c), the reinforcing material D is laid so as to connect the purlin 2, the purlin 3, the eaves girder 4 and the rafter 1 which compose the skeleton A. It is preferable to fix these skeletons A to each other as shown. That is, FIG. 6A is an example in which one purlin D is used to connect the purlin 2, the purlin 3 and the eaves girder 4, and the rafter 1 located below the reinforcement D is also fixed.

FIGS. 6 (b) and 6 (c) show between the purlin 2 and the main building 3,
Further, the main building 3 and the eaves girder 4 are connected to each other by different reinforcing materials D, and by connecting the members constituting the building body A with the reinforcing material D, the strength of the building body A of the building is dramatically improved. To improve. Depending on the roof area of the building, the length of the reinforcing material D and the pitch of the laying may depend on the main building 3
There may be more than one, and they are arbitrarily selected according to the site. Further, in FIG. 6, the base plate 5 is shown by a chain double-dashed line for convenience.

After laying the reinforcing material D, a new waterproofing asphalt roofing β is arranged as required as shown in FIGS. 1 and 2, and then a new roof E is formed. The new roof E is a new roof material F shown in FIG. 7, and FIG.
The backing material G shown in FIG.

The new roofing material F is a step-like roofing material as shown in FIG. 7, which is light in weight and does not burden the skeleton A. That is, the new roofing material F is formed of a metal plate (color steel plate, copper plate, aluminum plate, titanium plate, stainless steel plate, sandwich steel plate, clad steel plate, etc.) by roll molding, press molding, extrusion molding or the like.

To explain further, the new roofing material F is in the form of a long plate, and one end portion in the width direction thereof is bent toward the lower side of the decorative surface 11, that is, the rear surface 12 side in a substantially U-shape and the stepped decorative surface 13 is formed.
The male connecting portion 16 is formed with the insertion edge 14 and the decorative edge 11, and the stepped decorative surface 13 and the insertion edge 14 form a substantially U-shaped hooking groove 15.

Further, at the other end of the decorative surface 11, the insertion edge 14 which is bent to the upper side of the decorative surface 11 and has a substantially U-shaped cross section is formed.
A fitting groove 17 that fits with, a fitting edge 18 in which the tip of the fitting groove 17 is folded back in a U shape, and a tip of the fitting edge 18 is bent downward and is substantially parallel to the decorative surface 11 and outward. The female connecting portion 20 is formed by forming a fixing piece 19 which is bent and extended in an L shape.

Furthermore, a connecting piece 21 is formed by bending both end edges of the decorative surface 11 in the longitudinal direction on the back surface 12 side in a goby shape. In FIG. 7, in order to strengthen the strength in the longitudinal direction and prevent rainwater and the like from the outside from entering the inside due to the capillary phenomenon, concave grooves 22 are formed in the fitting groove 17 and the insertion edge 14, respectively. There is.

The backing material G is a long plate-like material as shown in FIG. Further, by stacking a large number of backing materials G on the roof base material B and laying them, a new roof material F
The new roof material F is prevented from being deformed even when a load is applied such as work on the roof or snow, and it also functions as a heat insulating layer, a humidity control layer, a fireproof layer, and a soundproof layer.

As the material of the backing material G, a sheathing board, a sheathing insulation boat, a plastic foam (urethane foam, nurate foam, phenol foam, etc.) particle board, a wood composite board,
Wood wool cement board, composite panel (control panel),
It is made of gypsum board, ALC board, or the like.

Explaining further, the backing material G abuts the end surfaces in the horizontal direction, and as shown in FIG. 2, the long side surface is superposed on the lower backing material G ₁ in the eaves-to-ridge direction.
It has a stepped shape and is fixed so as to form a triangular void γ with the roof base B. The void γ can function as a flow passage for fresh air and the like, and further promotes the functions of the backing material G, such as the heat insulating material, the soundproofing material, and the humidity control material, and also prevents dew condensation to prevent the body A and the roof substrate B, which contributes to the prevention of corrosion of the new roof material F and the like.

FIG. 9 shows a joint material H for connecting the new roofing materials F to each other in the longitudinal direction, which is made of the same kind of material as the new roofing material F by an equivalent forming method. It is formed from two members, a floor sheet I and a fitting plate J.

That is, as shown in FIG. 9 (b), the floor sheet I is in contact with the back surface 12 of the new roofing material F, and the floor sheet 23 for mounting the fitting plate J and the lower side of the floor sheet 23. Is formed by a bent portion 24 bent to the back surface side, and a rain return portion 25 formed by bending the upper side of the stitch portion 23 to the front surface side as necessary, and as shown in FIG. As shown in FIG. 9D, which is an end view taken along the line EE, in the width direction, both side edges are folded back to the front side, and the tips are folded back to form a vase-like locking portion 26, and the locking portion 26. And an extended tongue piece 28 formed by folding back the tip of the extended portion 27 to the surface side.

It should be noted that this end face shape can be made substantially the same not only in the mat line portion 23 but also in the recess portion 24 to the rain return portion 25. That is, the floor sheet I can be continuously formed by roll forming or the like, and the production can be performed at a reduced cost. Further, in FIG. 9, in order to strengthen the connection in the vertical direction, a substantially central portion of the mouth 24 is extended to form a tongue piece 24a.

As shown in FIG. 9 (c), the fitting plate J has a cross-sectional shape in which the left and right sides of the bottom surface 29 are folded back to form the locking tongue pieces 30 to form a mating bag shape. As shown in d), the connecting pieces 21 provided on both side edges of the decorative surface 11 of the new roofing material F are fitted and locked. Note that FIG.
In (d), the new roofing material F is shown by a dotted line. To explain further, the fitting plate J is shown in FIG.
As shown in (d), both ends are locked by the locking portions 26 to be integrated.

Next, a construction method of the roof repairing method according to the present invention will be described. First, the existing roof C as shown in FIGS. 3 and 4 is removed. Next, as shown in FIG. 6 (a), the reinforcing materials D are arranged in a bracing manner at an appropriate pitch from the top of the base plate 5 of the roof substrate B, and the reinforcing materials D are used as purlins 2, purlins 3, and eaves girders 4. Each of them is connected and fixed to the frame A and the roof base B
Improve the strength of.

Then, as shown in FIG. 1, a new asphalt roofing β is laid on the entire surface of the reinforcing material D, if necessary. Next, as shown in FIG. 2, the lower backing material G ₁
Is laid on the new asphalt roofing β, and the new roof material F on the lower line is placed on the backing material G ₁ located on the lower line.
₁ is loaded and fixed to the roof substrate B through the backing material G ₁ with a fixing tool α such as a nail on the fixing piece 19 of the new roofing material F ₁ .

[0029] Then while loading one end of the backing material G ₂ of the upper on the lower part of the new roofing material F ₁ of the fixing piece 19, upper new roof in the fitting groove 17 of the lower new roofing material F ₁ Material F ₂
The insertion edge 14 is fitted and locked, and the new roof material F ₂ on the upper stage is loaded on the backing material G ₂ on the upper stage. The new roof E is formed by successively performing these operations from the eaves direction to the ridge direction.

[0030]

[Other Embodiments] The above description is one embodiment of the roof repairing method according to the present invention, and the repairing method as shown in FIGS. 10 to 16 may be used, or members for repairing may be used.

That is, FIG. 10 (a) shows an example in which a plurality of reinforcing materials D are arranged at an appropriate pitch so as to be orthogonal to the rafter 1, and FIG. 10 (b) shows the reinforcing material D in a short and narrow shape. The rafters are arranged on the whole or a part of the roof substrate B at an appropriate pitch or a random pitch, and different rafters 1
The construction method is fixed to.

FIG. 11 (a) shows a reinforcing material D in the shape of a rectangular board, which is a construction method for reinforcing the entire surface of the roof base B in particular. FIG. 11B shows a construction method in which the reinforcing material D is a mesh lath material.

In FIG. 12 (a), the reinforcing material D is formed in a frame shape in advance, and the reinforcing material D is arranged and fixed on the roof substrate B.
In addition to the square shape of the frame as shown in the figure,
It can be arbitrarily formed into a triangular shape, a circular shape, a polygonal shape, a radial shape, etc. (not shown). FIG. 12B shows a construction method in which a new asphalt roofing β is laid on the base plate 5 which is the roof base B, and the reinforcing material D is arranged and fixed thereafter.

In FIG. 13, the reinforcing material D is formed in a substantially U shape as shown in FIG. 13 (a), and the tip 31 is formed in a needle shape, as shown in FIG. 13 (b). This is an example of a construction method in which a reinforcing member D is used, in which the tip 31 portion is directly driven into the frame A and the roof base B and used without using the separate fixing tool α.

Further, the reinforcing material D uses a turnbuckle, and after the reinforcing material D is disposed on the roof base material B, the bolt portions 32 are fastened and firmly tightened to form the frame A and the roof base material B. The strength is greatly improved.

14 (a) to 14 (f) are cross-sectional views showing a modified example of the new roof material F. Particularly, FIGS. 14 (e) and 14 (f) show the suspension K (for fixing the new roof material F). (Indicated by a dotted line).

Further, FIGS. 15 (a) to 15 (d) show a backing material G.
15 (a) and 15 (b) are examples in which a notch 33 and a convex portion 34 serving as overlapping guides are formed to facilitate construction, and FIG. 15 (c) shows a hollow hole 35 inside. Is an example of a backing material G having excellent fire protection performance, in which the outer periphery of the backing material G is covered with a fireproof coating 36.

FIG. 16 (a) is an explanatory view showing another example of the joint material H, and a floor sheet I as shown in FIG. 16 (b),
In the example of the joint material H, which is composed of a fitting plate J as shown in FIG. 6C and a packing body L as shown in FIG. is there.

[0039]

As described above, according to the roof repairing method of the present invention, the conventional drawbacks can be solved and the existing structure
Since the existing roof substrate and the reinforcing material that reinforces the strength of the existing roof member are arranged and fixed from the roof substrate to the skeleton, the strength of the entire building is improved and the structure is strong against earthquakes. Since the existing roofing materials are dismantled and removed, the roof as a whole will be lighter, and the existing building structure will not be burdened. The new roofing material is fixed directly to the existing roofing base and does not easily fall off. There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a typical example of a roof repairing method according to the present invention.

FIG. 2 is an explanatory view showing a typical example of a roof repairing method according to the present invention.

FIG. 3 is an explanatory diagram showing an example of an existing roof before repair.

FIG. 4 is an explanatory diagram showing an example of an existing roof before repair.

FIG. 5 is an explanatory diagram showing an example of a reinforcing material and a method of constructing the reinforcing material.

FIG. 6 is an explanatory view showing an example of a reinforcing material and a construction method thereof.

FIG. 7 is an explanatory diagram showing an example of a new roofing material.

FIG. 8 is an explanatory diagram showing an example of a backing material.

FIG. 9 is an explanatory diagram showing an example of a joint material.

FIG. 10 is an explanatory view showing another example of the roof repairing method according to the present invention.

FIG. 11 is an explanatory view showing another example of the roof repairing method according to the present invention.

FIG. 12 is an explanatory view showing another example of the roof repairing method according to the present invention.

FIG. 13 is an explanatory view showing another example of the reinforcing material and a construction method thereof.

FIG. 14 is an explanatory view showing another example of the new roofing material.

FIG. 15 is an explanatory diagram showing another example of the backing material.

FIG. 16 is an explanatory diagram showing another example of the joint material.

[Explanation of symbols]

 A Frame B Roofing base C Existing roof D Reinforcement E New roof F New roofing material G Backing material H Joint material I Laying board J Fitting board K Suspender L Packing body α Fixing device β New asphalt roofing γ Void 1 Rafter 2 Purlin 3 Purlins 4 houses Girder 5 Field plate 6 Asphalt roofing 7 Roof tiles 8 Roof tiles 9 Roofing soil 10 Earth retaining bars 11 Decorative surface 12 Back surface 13 Stepped decorative surface 14 Insertion edge 15 Hooking groove 16 Male connection part 17 Fitting groove 18 Fitting Edge 19 Fixing piece 20 Female connecting part 21 Connecting piece 22 Recessed line 23 Lap part 24 Envelope part 24a Envelope tongue piece 25 Rain return part 26 Engagement part 27 Extension part 28 Extension tongue piece 29 Bottom surface 30 Engaging tongue piece 31 Tip 32 bolt part 33 notch 34 convex part 35 hollow hole 36 fireproof coating material

Claims (1)

[Claims] Claims: 1. Removing existing roofs of buildings and structures, arranging a reinforcing material for reinforcing the existing frame and roof bases on the existing roof base, and forming a new roof on the reinforcements. A roof renovation method characterized by.