JPH04250249A - roofing structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to roofing structures that are applied to various roofing materials (metal horizontal roofing, pressed roof tiles, roof tiles, natural slate, tiles, etc.) for buildings in, for example, cold regions with heavy snowfall. It is something.

0002

[Prior Art] Conventionally, in this type of roofing structure, for example, Japanese Patent Application Laid-Open No. 60-215963, Japanese Utility Model Application No. 58
Some devices have configurations such as those disclosed in Japanese Utility Model Application Publication No. 64733, Japanese Utility Model Application Publication No. 17820/1982, or Japanese Utility Model Application Publication No. 19614/1988.

[0003] For roofs that are used in special environments where the joints of roofing materials are flooded, such as when suga leaks occur in cold regions with heavy snowfall or during storms when rainwater is dammed up by the roof surface, For example, the inner layer material and asphalt-based waterproof paper are laid on the base materials including steel frames, wooden main buildings, ALC panels, concrete frames, etc., and the upper surfaces of these are covered with, for example, metal horizontal roofing, pressed tiles, etc.
The roof is covered with roofing materials such as roof tiles, natural slate, or tiles.

FIGS. 9 and 10 show an example of the structure of a roof in the conventional building described above. In the figures, 1 is a main building made of C-shaped steel as a base member, and 2 is a main building on which a predetermined interval is placed on the main building 1. These are multiple metal rafters arranged perpendicularly to each other.

[0005] Each of these rafters 2 is composed of a substantially inverted U-shaped channel member that opens downward, and has a cross-sectional shape with flanges 2a, 2a projecting outward from both lower ends thereof. The flange portions 2a, 2a are supported and fixed on the main building 1 by screws 3, 3.

[0006] The main building 1 between each of the rafters 2 and 2 is
An inner layer material 4 made of a heat insulating board or the like is laid on top, and both edges of this inner layer material 4 are placed on flanges 2a, 2a extending from the lower ends of the rafters 2, 2, respectively. It is designed to be placed.

In the figure, 50 is made of asphalt roofing or a material such as asphalt felt, which is laid on the lower side of the roofing materials 8 and 8 so as to cover the rafters 2 and the inner layer material 4, and is expected to have a secondary waterproofing function. This is an asphalt-based waterproof paper.

Further, 6 in the figure is a hanger as a holding member,
As shown in FIG. 11, it has a mounting hole 6a and a hanging part 6b bent into a hook shape, and is fixed to the upper surface of the rafter 2 by inserting a screw 7 into the mounting hole 6a. At the same time, the connecting edge portions 8a and 8b of the metal roofing materials 8 and 8, which are connected to each other in the direction of the eaves and laterally roofed, are hooked to the hooking portion 6b. ing.

However, in a roof of such a conventional structure, as shown in FIG. 10, at a portion A near the eaves of the roof, the connecting edges 8a, 8b of the roofing materials 8, 8 connected to each other in the direction of the eaves. Snow S accumulates on the ground, and this snow S melts to form a puddle W, which is likely to be flooded.

As described above, when the connecting edges 8a, 8b of the roofing materials 8, 8 are submerged in water due to melting snow, etc., the conventional method is to remove the water that has entered the inside (back side) of the roofing materials 8, 8. At present, the water is discharged from the eaves by receiving it with waterproof paper 50 and guiding it to the eaves by the slope of the roof.

[0011]

However, in the roof of the above conventional structure, not only does the waterproof paper 50 easily break, but also the connecting edge 8 of the roofing materials 8, 8
When the water that floods a and 8b enters the inside of the roofing materials 8 and 8, the waterproof paper 50 has a penetration point by the screw that fixes the hanger 6, so the penetration point becomes a defective part in terms of waterproofing. As shown in FIG. 10, through the penetration point,
There is a problem in that water tends to leak indoors from within the rafters 2 or between the outside of the rafters 2 and the inner layer material 4, and the secondary waterproofing function cannot be reliably exerted.

An object of the present invention is to provide a roofing structure that can reliably prevent water from leaking indoors even if the joints of the roofing material are submerged in water.

[0013]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a foundation member such as a main house, and a plurality of left and right pillars supported and fixed on the foundation member at predetermined intervals. Rafters having a substantially W-shaped cross section with grooves, inner layer materials laid between each of these rafters, and both left and right edges of the face plate portions laid on each of these inner layer materials and bent downward. water leakage prevention plates that are inserted into and engaged with the left and right grooves that open above each of the adjacent rafters, roofing materials laid to cover these water leakage prevention plates, and these roofing materials inside. A structure comprising a holding member such as a hanger fixed to the rafter so as to be held and fixed from above, and a gutter member opening upward and disposed on the base member so as to cover the lower outer peripheral surface of the rafter. That is.

[0014] Further, the present invention provides a base member such as a main building,
A plurality of inner layer materials laid on the base member and each having a groove at approximately the center of the upper surface thereof, each having an approximately W-shaped cross section with grooves on the left and right sides that are fitted and supported in the grooves of each of the inner layer materials. shaped rafters, and the left and right end edges of the face plate parts laid between each of these rafters are bent downward and inserted and engaged with the left and right grooves opening above each of the adjacent rafters. water leakage prevention boards, roofing material laid to cover these water leakage prevention boards,
A holding member such as a hanger fixed to the rafter so as to hold and fix the roofing material from the inside, and a gutter member opening upward and arranged in the groove of the inner layer material so as to cover the outer peripheral surface of the lower part of the rafter. The configuration includes the following.

[0015]

[Operation] That is, according to the configuration of the present invention described above, most of the water that has entered from the joints of the roofing material drips onto the water leakage prevention plate, is guided to the eaves side, and is discharged from the eaves side. .

[0016] Furthermore, since the side edges of the face plate portion of the water leakage prevention plate are inserted into and engaged with the left and right grooves opening above the rafters, and the outer peripheral surface of the lower part of the rafters is covered by the gutter member, Even if some of the water on the leakage prevention board that has entered through the connections of the roofing material drips into the rafters, the water will be caught by the gutter members, guided to the eaves side, and drained from the eaves side, and the water will be removed from the rafters. and the inner layer material.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below with reference to embodiments shown in FIGS. 1 to 8.

In the illustrated embodiment of the present invention, the same reference numerals are used to describe the parts that have the same structure as those of the conventional roofing structure shown in FIGS. 9 to 11.

FIGS. 1 to 3 show a first embodiment of the roofing structure according to the present invention. As shown in FIGS. Each of the plurality of rafters 2 is formed to have a substantially W-shaped cross section.

Further, inner layer materials 4 are laid between each of these rafters 2, 2, and each of these inner layer materials 4, 4
On the upper surface, flanges 2b, 2b, which are formed to protrude from the left and right edges of the upper end, are placed, and these flange parts 2
b, 2b are supported and fixed on the main building 1 by a pair of fixing fittings 30, 30 made of screws passing through the inner layer materials 4, 4, and these fixing fittings 3
The rafter 2 is pressed and held onto the main building 1 by tightening the rafter by 0.30.

Furthermore, a water leak prevention plate 5 is laid on the inner layer material 4 laid between each of the rafters 2, 2, and this water leak prevention plate 5 is made of a metal plate, resin, or paper coated with asphalt. It is made of a plate or the like that has been impregnated and hardened, and as shown in FIG. , has a form in which both left and right end edges 5b, 5b are bent downward at a right angle.

[0022]The left and right end edges 5b, 5b of the water leak prevention plate 5 are inserted into and engaged with the left and right grooves 21, 21, respectively, which open above the adjacent rafters 2, 2. At the same time, a roofing material 8 is laid so as to cover the tops of these water leakage prevention plates 5.

This roof material 8 is held and fixed from the inside by a hanger 6 as a holding member, and this hanger 6 is fixed to the central upper surface 2c of the rafter 2 via screws 7, as in the conventional case. .

By the way, the height position of the central upper surface 2c of the rafter 2 is the same as the height of the flange portions 2b, 2b formed overhanging on both the left and right upper end edges of the rafter 2, or the height of the water leakage prevention plate 5. It is set higher by the height of the vertical rib 51.

In the figure, reference numeral 10 denotes a bottomed gutter member with an open upper surface and disposed so as to cover the outer peripheral surface of the lower part of the rafter 2.

[0026] This gutter member 10 is attached to the fixing fittings 30, 3.
It is pressed and held onto the main building 1 by the rafters 2 which are tightened at zero.

FIG. 4 shows a second embodiment of the present invention, in which upper edges of the gutter member 10 covering the outer peripheral surface of the lower part of the rafter 2 are bent downward to extend left and right. It has a configuration in which flange portions 10a, 10a are formed, and these flange portions 10a, 10a are fixed by the aforementioned fixing fittings 30, 30.

Furthermore, FIG. 5 shows a third embodiment of the present invention, in which a plurality of inner layer materials 4 are laid on the main building 1, and a groove 41 is formed approximately at the center of the upper surface of the inner layer material 4. It has a structure in which a rafter 2 having a substantially W-shaped cross section is fitted into a groove 41.

A fixing band 31 having substantially the same cross-sectional shape as the rafter 2 as shown in FIG. 6 is applied from above to the rafter 2, and the flange 3 of this fixing band 31
1a, 31a are fixed to the main building 1 with fixing fittings 30, 30 such as screws that are penetrated through the inner layer materials 4, 4, so that the rafter 2 is pressed and held, and the gutter member 10 is fixed to the inner layer material by the rafter 2. It is pressed and held in the groove portion 41 of No. 4.

Furthermore, a claw portion 22 is cut out and formed on the central upper surface 2c of the rafter 2, and by fitting the hanger 6 into this claw portion 22, the use of the screw 7 is obviated. There is.

By the way, reference numeral 23 in the figure indicates a drainage port formed at a predetermined interval on the inner wall or bottom of the left and right grooves 21, 21 of the rafter 2, and rainwater flowing into the left and right grooves 21, 21 of the rafter 2 is drained. The water can be easily drained into the gutter member 10.

Furthermore, FIGS. 7 and 8 show a fourth embodiment of the present invention, which has the structure of the third embodiment.

[0033]

As is clear from the above description, the present invention provides a structure in which the side edges of the face plate portion of the water leakage prevention plate are inserted into and engaged with the left and right grooves opening above the rafters, and Because the outer circumferential surface is covered by the gutter member, even if some of the water on the leakage prevention plate that has entered from the connection of the roofing material drips into the rafters, the water will be caught by the gutter member and removed from the eaves. The water is channeled to the side and drains from the eaves side, not between the rafters and the top of the inner layer, which ensures that even if the roofing connections are flooded, water will not leak into the interior. It can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view showing a first embodiment of a roofing structure according to the present invention.

FIG. 2 is an enlarged cross-sectional view of the main part.

FIG. 3 is an explanatory diagram of a water leak prevention plate.

FIG. 4 is an enlarged sectional view of a main part showing a second embodiment of the present invention.

FIG. 5 is an enlarged sectional view of a main part showing a third embodiment of the present invention.

FIG. 6 is a perspective view similarly showing the fixing fitting.

FIG. 7 is an enlarged sectional view of a main part showing a fourth embodiment according to the present invention.

FIG. 8 is a perspective view similarly showing the fixing fitting.

FIG. 9 is a sectional view showing a conventional roofing structure.

FIG. 10 is a vertical sectional side view showing a conventional roofing structure in an enlarged manner.

FIG. 11 is a perspective view of a hanger used to hold roofing material.

[Explanation of symbols]

1... Base member (main building), 2... Rafter, 2b, 2b
...Flange part, 21, 21...Groove part, 4...Inner layer material, 5...Water leak prevention plate, 5a...Face plate part, 5b
, 5b... Both ends, 6... Holding member (hanger), 8...
... Roofing material, 8a, 8b... Connection edge, 10...
Gutter member, 10a, 10a...flange part, 30, 30
...Fixing metal fittings, 50...Waterproof paper.

Claims (7)

[Claims] Claim 1: A base member such as a main building, a plurality of rafters each having a substantially W-shaped cross section with grooves on the left and right sides supported and fixed on the base member at predetermined intervals, and a space between each of these rafters. inner layer material laid on each of the inner layer materials, and left and right grooves laid on each of these inner layer materials and opening above each of the adjacent rafters by bending both left and right edges of the face plate portion downward. The water leakage prevention plates inserted and engaged, the roofing material laid to cover these water leakage prevention plates, and the holding of hangers etc. fixed to the rafters to hold and fix these roofing materials from the inside. A roofing structure comprising: a member; and a gutter member that opens upward and is disposed on the base member so as to cover the outer peripheral surface of the lower part of the rafter. 2. The roofing structure according to claim 1, wherein the gutter member is pressed and held onto the base member by rafters. 3. The roofing structure according to claim 1, wherein the left and right upper end edges of the gutter member are bent downward to form flange portions extending left and right. Claim 4: A base member such as a main building, a plurality of inner layer materials laid on the base member and having a groove at approximately the center of the upper surface thereof, and a plurality of inner layer materials that are fitted and supported in the grooves of each of the inner layer materials. A fixed rafter having a substantially W-shaped cross section with grooves on the left and right sides is installed between each of these rafters, and the left and right edges of the face plate are bent downward to extend above each of the adjacent rafters. Leakage prevention plates inserted into and engaged with the left and right grooves opening into the left and right grooves, roofing materials laid to cover these leakage prevention plates, and roofing materials placed on the rafters so as to hold and fix these roofing materials from the inside. A roofing structure characterized by comprising a holding member such as a fixed hanger, and a gutter member opening upward and disposed in a groove of the inner layer material so as to cover the lower outer peripheral surface of the rafter. 5. The roofing structure according to claim 1, wherein drainage ports are provided at a predetermined interval in the left and right grooves of the rafters. 6. The roofing structure according to claim 1, wherein a plurality of vertical ribs are provided at appropriate intervals on the face plate portion of the water leakage prevention plate. 7. The roofing structure according to claim 1, wherein the gutter member is pressed and held in a groove portion of the inner layer material by a rafter.