JP3049440B2 - Roof construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a roofing method for a roof made of a steel sheet and a synthetic resin roof.

2. Description of the Related Art Conventionally, as shown in FIG. 1 and FIG. 2, for example, a split roof has a continuous trapezoidal tight frame c fixed to a receiving beam b placed on an inclined purlin material a. Frame c
Generally, it is configured by fixing via a hook e a steel sheet roof material d in which one or a plurality of trapezoidal mountain shapes are formed by bending. On the side of the roof roof material d along the roof slope, a rising section f for roofing is provided.
Is provided, and the rising portion f of the split roof material d adjacent to the rising portion f is overlapped and tightened by a tightening machine as shown in the figure. The split roof material d can be manufactured as long as several tens of meters in width and several tens of meters in the length direction of the roof gradient.

(Problem to be Solved by the Invention) When the entire roof is formed of a steel sheet roof material, the roof tends to be dark, and it is desired to provide a light at an appropriate place on the roof. It is thought that if the roof is made of a synthetic resin such as polycarbonate, which has good weather resistance and can be mechanically processed, as the roof material, the appearance of the entire roof will be smart without disturbing the wave shape of the roof. Can be

However, this synthetic resin folded plate such as polycarbonate,
Complicated bending is difficult, and it cannot be connected to the adjacent roofing material by steeling like a steel plate. In addition, from the point of efficiency of the roofing work, after roofing the steel sheet roof material over the entire roof except for the lighting spot, if the synthetic resin folded plate is to be roofed, the tightening work will be continued. Although it is preferable because it can be performed, it is not easy to lay underneath the steel sheet folded roof material on the upstream side, which is tightened to prevent the roof from leaking, and roof the synthetic resin folded sheet on the downstream side.

SUMMARY OF THE INVENTION An object of the present invention is to propose a simple construction method in which a synthetic resin folded plate is watertight so as not to leak into a proper place on a split roof and is laid.

(Means for Solving the Problems) According to the present invention, in the method of roofing a steel sheet roofing material on the upstream side of the sloping roof and successively roofing the synthetic resin folded sheet roofing material on the downstream side thereof, A packing is formed by tightening the crest on the downstream side of the roofing material with a waterproof member interposed therebetween, and forming the crest around the waterproofed crest into a substantially trapezoidal shape continuous to the roof surface. Attachment, a strip-shaped waterproof layer was formed on the downstream roof surface of the steel sheet folded roof material in a direction intersecting with the roof gradient, and the upstream side of the synthetic resin folded sheet roof material was adhered on the waterproof layer. Then, the above object is achieved by fixing the peripheral side of the ridge of the synthetic resin folded sheet roof material to the steel sheet folded roof material with a bolt via a waterproof seal.

(Operation) A tight frame is fixed on the receiving beam that constitutes the sloping roof, and the steel sheet roof material is sequentially placed on the tight frame from one side thereof to perform a tightening operation. In this case, the place where the synthetic resin folded plate roof material is provided for lighting is
When a steel plate split roofing material is not placed and a space is formed, and a crest on the upstream side of the space is tightened, a waterproof member is interposed in the crest. After the tightening operation is completed, a packing is attached around the waterproofed head, and a belt-shaped waterproof layer is formed on the roof surface of the steel sheet roof material near the packing so as to intersect with the roof slope. The synthetic resin folded plate roof material is adhered to the layers.

The downstream side of the synthetic resin folded sheet roof material is superimposed on the succeeding steel sheet folded roof material, and a waterproof layer similar to the above waterproof layer is formed between the overlapping portions. From above, fix the band-shaped bracket to the steel sheet roof material with bolts.

Thus, although the synthetic resin folded sheet roof material is laid on the steel sheet folded roof material on the upstream side, rainwater flowing along the roof gradient leaks into the roof, or the synthetic resin folded sheet roof material is not used. The roofing material hardly hinders the flow of rainwater, and the strength against the negative pressure generated on the roof is firmly maintained by fixing the synthetic resin folded plate roofing material with the band-shaped bracket.

On the peripheral surface of the ridge extending in the roof gradient direction of the synthetic resin folded plate roof material, a longitudinal angle material is provided along the roof gradient direction, and the peripheral surface of the ridge is waterproof sealed. By fixing bolts to the roof surface of the steel sheet roofing material that is laid in parallel with the synthetic resin roofing material through the material, rainwater enters the roof from the side of the synthetic resin folding roofing material. Intrusion is prevented.

If the synthetic resin folded plate roof material is long in the direction of the roof gradient,
The middle part flexes up and down and hinders drainage.However, by supporting the middle part of the synthetic resin folded plate roofing material on the intermediate support material stretched between the steel sheet folding roof materials adjacent on both sides thereof, Deflection can be prevented.

The above-mentioned bending of the synthetic resin folded sheet roofing material supports the lower surface of the synthetic resin folded sheet roofing material with an intermediate support member having a bent portion stretched between the tops of the steel sheet folded roofing material parallel to both sides thereof. Then, the metal fittings attached to the tops of the parallel steel sheet roof materials and the ridges of the synthetic resin roof material are prevented from being fixed to the rigid member, so that the roof joint that can withstand a large load can be performed.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. In FIG. 3, reference numeral (1) denotes a purlin with a slope, (2)
Shows a receiving beam fixed on the purlin (1) crossing over the purlin (1), and a tight frame (4) on the receiving beam (2) along the cross-sectional shape of the steel sheet roof material (3) Is mounted and fixed. The steel sheet roof material (3) is processed into a trapezoidal cross-sectional shape having a substantially U-shaped rising portion (5) on both sides as shown in FIG. 4, and the two sheets are paralleled along the roof gradient. The roof is tightened over the entire length of the rising portion (5) as shown in FIG. 5 using a tightening tool so as to wrap the suspension (7) provided on the top of the tight frame (4). Forming a head (6) over the entire length of the gradient.

By this tightening, the adjacent roof materials (3) are connected to each other and fixed to the receiving beam (2) via the suspension (7) and the tight frame (4), thereby forming an inclined roof.

The above construction method is no different from the conventional construction method of the roof.

In the case of the present invention, as shown in FIG. 6, in order to provide a synthetic resin folded plate roof material (8) made of an engineering plastic that can be molded such as polycarbonate or polyamide for lighting in the middle of the split roof, as shown in FIG. A part of the area (10) on the upstream side of the void (9) is tightened in a state in which a part of the steel plate roof material (3) is removed and a void (9) is provided. Before forming the part (6) with the shrinkage,
As shown in the drawing, a tape-shaped waterproof member (11) is interposed, and at the time of tightening, the waterproof member (11) is involved and tightened. When the rising portion (5) to be tightened is formed in a round shape as shown in FIG. 8, in addition to the tape-shaped waterproof member (11) for waterproofing a narrow space, a caulking agent waterproof member ( Preferably, 11a) is filled. As the tape-shaped waterproofing member (11), what is commonly called a sheet metal tape in which butyl rubber is applied to both sides of a cloth tape is effective.

The synthetic resin folded sheet roof material (8) is processed by molding to have at least two substantially trapezoidal ridges (8a) (8a) in cross section, and the height of the trapezoid is a steel plate. It is formed so as to have a height corresponding to the length from the bottom of the split roof material (3) to the split top (6). The synthetic resin folded sheet roof material (8) is laid so as to overlap with the steel sheet folded roof material (3) around the void (9), but in order to prevent rainwater from entering through a gap on the upstream side. 9, a soft rubber or other soft material having a substantially trapezoidal outer shape as shown in FIG. 9 and a space (12) into which the tip (6) fits. A packing (13) made of a material is attached by bonding or the like, and a strip-shaped waterproof layer (14) is formed on the roof surface near the packing (13) in a direction crossing the slope of the roof. The packing (13) closes a trapezoidal space created between the steel sheet roof material (3) and the synthetic resin folded sheet roof material (8), and the waterproof layer (14) is used as the steel sheet roof material. A narrow gap created between (3) and the synthetic resin folded plate roofing material (8) superposed thereon is closed. The waterproof layer (14) is made of a tape (15) of a resilient and thick foam which is adhered to both sides of a waterproof tape (16) having the same configuration as the above-mentioned sheet metal tape. The roof material (3) is provided on the roof surface in, for example, three stages.

The similar waterproof layer (14) is also provided in a portion where the steel sheet roof material (3) on the downstream side of the space (9) overlaps with the synthetic resin folded sheet roof material (8).

The upstream side and the downstream side of the synthetic resin folded sheet roof material (8) are bonded to the steel sheet folded roof material (3) through the waterproof layer (14) as shown in FIG. Seal the side of each ridge (8a) (8a) of the material (8) with a waterproof seal (1
7) The bolts (18) are used to fasten the folded steel roof material (3) on both sides parallel to the synthetic resin roof material (8). The same kind of tape as the waterproof tape (16) is used for the waterproof seal (17). In addition, in order to firmly tighten the entire side of the synthetic resin folded plate roof material (8), a long angle material (1) is formed on the upper surface of the side edge along the roof gradient direction.
Attach 9) and bolt (18) with the angle material (19)
It is preferable to fasten to the steel sheet roof material (3).
As shown in FIG. 10, the most upstream waterproof layer (1
The outside of 4) is filled with a caulking agent (20) so as not to generate a space for storing rainwater.

According to the above construction method, the synthetic resin folded sheet roof material (8) can be easily and watertightly spliced after roofing the steel sheet folded roof material (3). There was no water flowing into the room.

If the length of the synthetic resin folded plate roof material (8) is long in the direction of the roof gradient or is wide with, for example, three ridges, the intermediate portion thereof is bent up and down due to wind pressure and snow accumulation, and It is conceivable that the cross-sectional shape and the like of the resin folded plate roofing material (8) may change, and in order to prevent this, the overlapping portion of the synthetic resin folded plate roofing material (8) and the steel plate folding roofing material (3) From above, a band-shaped bracket (25) bent into substantially the same shape as the synthetic resin folded plate roof material (8) is fixed to the steel plate roof material (3) by bolts (26) via a waterproof seal (27). The strength of the roof against positive and negative pressures applied to the roof was increased. Further, in order to prevent the above-mentioned deformation, each ridge (8a) of the synthetic resin folded plate roof material (8) is fixed to a rigid member (21) crossing the upper part thereof, and furthermore, the synthetic resin folded plate is An intermediate support member (22) along the cross-sectional shape of the synthetic resin folded plate roof material (8) is stretched between the parallel steel plate split roof materials (3) (3) on both sides of the roof material (8), An intermediate portion of the synthetic resin folded plate roof material (8) is supported by the intermediate support material (22).

As shown in FIG. 11, the intermediate support member (22) has a shape similar to the tight frame (4).
a) is provided below a space (22b) for accommodating the tip (6) of the steel plate roof material (3) and is bent so as to continue to the horizontal fixing portion (22c), and is bent above the space (22b). An upright bolt (22d) is attached to the end (22a). The intermediate support member (22) is provided between the ridges (3a) and (3a) of the left and right steel plate split roof materials (3) parallel to the synthetic resin folded plate roof material (8) before the roofing. As shown in the figure, it is stretched and fastened with screws (23). When the synthetic resin folded plate roof material (8) is to be roofed, an insertion hole formed in the roof material is inserted into a bolt (22d) of the intermediate support material (22). Fixed.

When it is difficult to prevent the vertical bending of the synthetic resin folded sheet roof material (8) simply by supporting the middle of the synthetic resin folded sheet roof material (8) with the intermediate support material (22), as shown in FIG. A metal fitting (24) having a pair of legs (24a) for tightening both sides thereof is attached to the tops (6) (6) of the steel plate split roof material (3) (3) parallel to both sides of (8). Attach, fix the receiving bracket (24) and each ridge (8a) of the synthetic resin folded plate roof material (8) to a rigid member (21) such as an angle material, and firmly fix the synthetic resin folded plate roof material. (8) The vertical deflection is prevented.

In order to fix the ridges (8a) to the rigid member (21), the illustrated embodiment uses bolts (22d) of the intermediate support (22).

The pair of legs (24a) of the receiving metal fitting (24) is formed of an L-shaped member that tightens both sides of the constricted portion of the tip (6), and adjusts the distance between both legs (24a) to tighten and fix. Therefore, a bolt (24b) is attached to the metal fitting (24). The receiving fitting (24) may have a configuration as shown in FIG. 14 or FIG.

(Effects of the Invention) As described above, according to the method of the present invention, the tip of the steel sheet split roof material on the upstream side of the synthetic resin folded sheet roof material is tightened with the waterproof member interposed therebetween, and the surrounding area is surrounded by Attach packing, form a strip-shaped waterproof layer on the roof surface that overlaps with the synthetic resin folded sheet roof material of the steel sheet folded roof material in the direction crossing the roof gradient, and bond the synthetic resin folded sheet roof material on it Then, since the sides of the ridge of the synthetic resin folded sheet roof material were fixed to the steel sheet broken roof material with bolts via a waterproof seal, after the tightening work of the steel sheet folded roof material was completed at an appropriate place on the folded roof. In addition, the roofing material of the synthetic resin folded plate can be easily roofed, and there are effects such as good watertightness and good load resistance to the positive pressure and negative pressure of the roof.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a conventional example, and FIG.
FIG. 3 is a perspective view of a main part of the embodiment of the present invention, FIG. 4 is a cross-sectional view of a steel sheet split roof material, FIG. 5 is an enlarged cross-sectional view of a tightened portion, FIG. FIG. 7 is a plan view of the roof after the tightening operation, FIGS. 7 and 8 are enlarged cross-sectional views of the head, FIG. 9 is a perspective view of the packing, and FIG.
FIG. 11 is an enlarged sectional view of the X-ray portion, FIG. 11 is a front view of the intermediate support member,
12 is an enlarged cross-sectional view taken along the line XII-XII of FIG. 3, FIG. 13 is a cutaway side view showing an attached state of a rigid member, and FIGS. 14 and 15 are front views showing modified examples of the receiving bracket. FIG. 16 is a cross-sectional view taken along the line XVI-XVI of FIG. 3, and FIG. 17 is a cross-sectional view of the band-shaped bracket. (3)… Steel sheet roof material, (6)… Steel part (8)… Synthetic resin folded sheet roof material (8a)… Ridge part, (11) (11a)… Waterproof material (13) ... packing, (14) ... waterproof layer (17) ... waterproof seal, (18) ... bolt (19) ... angle material, (21) ... rigid member (22) ... intermediate support material, ( 25) Band-shaped bracket

Claims (8)

(57) [Claims] (1) In a construction method in which a steel sheet roof material is laid on the upstream side of the sloping roof, and a synthetic resin folded sheet roof material is continuously laid on the downstream side thereof, a downstream flute of the steel sheet roof material is provided. Formed by tightening with a waterproof member interposed, a packing is formed around the waterproofed crest to shape the crest into a substantially trapezoidal shape continuous to the roof surface, On the downstream roof surface, a belt-shaped waterproof layer is formed in a direction intersecting with the roof gradient, and the upstream side of the synthetic resin folded plate roof material is bonded on the waterproof layer, and then the synthetic resin folded plate roof is bonded. A roofing method for split roofs, characterized in that the side edges of the ridge are fixed to the split steel roof material with bolts via a waterproof seal. 2. The method according to claim 1, wherein the waterproof layer is a layer in which a double-sided adhesive tape is layered above and below a tape of independent foam resin. 3. The method according to claim 1, wherein the waterproof layer is formed in a plurality of steps in a direction crossing the roof slope and at intervals in the slope direction. 4. The roofing material according to claim 1, wherein said roofing material has at least two ridges extending in the direction of the slope of the roof. The angle material is provided, and the side surface of each ridge portion is fixed with bolts to the roof surface of the steel plate folded roof material laid in parallel with the synthetic resin folded plate roof via a waterproof seal material. 2. The method according to claim 1, wherein the roof is tipped. 5. The synthetic resin shingle roofing material has at least two ridges extending in the direction of the slope of the roof, and each ridge is fixed to a rigid member that crosses between the ridges at an upper portion thereof. 2. The method according to claim 1, wherein the roof is tipped. 6. The downstream side of the synthetic resin folded sheet roofing material is further overlapped with the upstream side of a separate steel sheet folding roofing material, and the overlapping portion of the steel sheet folding roofing material is connected to the roof surface. A strip-shaped waterproof layer is formed on the roof surface on the downstream side of the steel sheet folded roof material in a direction crossing the roof gradient, and the synthetic resin folded plate roof is formed on the waterproof layer. 2. The roof of claim 1, wherein a belt-like metal part obtained by polymerizing the material and bending the polymerized portion into substantially the same shape is fixed to the steel sheet roof material with a bolt through a waterproof seal. Joint method. 7. An intermediate support material extending along the cross-sectional shape of the synthetic resin folded sheet roof material between parallel steel sheet folded roof materials on both sides of the synthetic resin folded sheet roof material. 2. The method according to claim 1, wherein an intermediate portion of the synthetic resin folded plate roof material is supported. 8. A belt-shaped fitting in which each of the upstream and downstream overlapping portions where the synthetic resin folded sheet roof material and the steel sheet folded roof material overlap is bent into substantially the same shape as the synthetic resin folded sheet roof material. 2. The method according to claim 1, wherein the synthetic resin folded sheet roof material is pressed from above through a waterproof seal, and the waterproof seal and the steel sheet folded roof material are integrally fixed by bolts.