JP7045053B2 - Building roof structure - Google Patents

Description

The present invention relates to an improvement in the rooftop structure of a building.

Waterproof panels are generally laid on the roof of a building. Moreover, on the rooftop of a building, especially in a high-rise building, a considerably strong wind is generated even in a normal time. And even in the event of a typhoon, it is necessary to prevent the laid waterproof panel from peeling off. Further, the panel itself is required to be inexpensive and easy to construct.

As a rooftop structure of a conventional building, for example, there is one disclosed in Japanese Patent Application Laid-Open No. 3-87467 (Patent Document 1). The outline thereof will be described with reference to FIG. 8. The panel 1a is provided with a heat insulating material 4 between the front surface material 2 and the back surface material 3. The joints 9 of the panel 1a have a complicated shape in which they are engaged with each other in a dovetail shape. Further, the joint cover attachments 5 are fixed with screws 7, and the joints 9 are filled with caulking material for the purpose of sealing, the panel 1a is spread and fixed to the floor surface of the building roof with the anchor bolts 8. The joint cover 6 is fitted to the joint cover attachment 5.

Further, as another conventional example, there is one disclosed in Japanese Patent Application Laid-Open No. 9-279713 (Patent Document 2). The outline thereof will be described with reference to FIG. 9. The surface material 2 of the panel 1b has an uneven surface so that the board 11 can be hung and the head of the anchor bolt 8 can be inserted. Further, in order to maintain the fixing force of the anchor bolt 8, the core material 13 is embedded in the heat insulating material 4 in the uneven surface portion. First, the joint plate 14 is fixed to the roof floor surface 10 with anchor bolts 15, then the panel 1b is spread along with the joint plate 14, the joints 9 are filled with a sealing material, and the panel 1b is attached with anchor bolts 8. Fixed to the roof floor surface 10. Next, the board 11 provided with the joint cover attachments 5 at both ends is fixed to the roof floor surface 10 with anchor bolts 12 so as to hang over the steps of the panel 1b, and the joint cover 6 is attached to the joint cover attachments. I try to fit it in 5.

Next, in the conventional example shown in FIG. 10, the corner panel 17 provided between the roof floor surface 10 and the vertical wall 16 has a small radius of curvature of approximately 90 degrees along the roof floor surface 10 to the vertical wall 16. It is bent. Then, as shown by the arrow A, the air can escape.

In each of the above-mentioned conventional examples, the shape of the portion forming the joint of the panel is complicated, and particularly in the conventional example shown in FIG. 8, the joint portion is the engagement between the female and the male. There is a problem that the mold for forming a panel is complicated and two types of molds are required, resulting in an expensive panel. In addition, when a panel with such a complicated shape is made into a standardized quadrilateral panel and laid on the roof floor, the joints where the corners of the four panels are butted against each other become complicated. It is virtually impossible to stylize into a quadrilateral panel. Therefore, there is a problem that the panel itself becomes large and difficult to mass-produce, resulting in an expensive panel.

In addition, in actual construction, the number of parts such as joint covers, joint cover attachments, a large number of anchor bolts, and filling of sealing materials increases, which increases the number of construction man-hours and makes the building rooftop structure expensive. be. Further, in the conventional example shown in FIG. 11, the joint plate 14 must be fixed first with the anchor bolt 15. Therefore, if the position of the joint plate 15 is incorrect, the concrete of the rooftop floor surface 10 is hung, the anchor bolt 15 is pulled out, the hung part is backfilled, and the anchor bolt is put back in the proper position. Work such as re-strike 15 is required, and there is a problem in terms of workability.

Next, in the conventional example shown in FIG. 10, when the wind in the direction of arrow B or C blows, a vortex as shown by the arrow is generated in the corner portion. Then, the corner portion D becomes a negative pressure. Due to this negative pressure, a force F acts on the corner panel 17 in the direction of peeling from the vertical wall 16. Since the corner panel 17 is bent at a substantially right angle with a small radius of curvature, the corner panel 17 provided along the vertical wall 16 tends to bend in the force F direction, and there is a high possibility that this portion will peel off. There is a problem. Then, once the corner panel 17 is peeled off, there is a problem that the entire corner panel 17 is peeled off, and finally the panel 1 of the rooftop floor surface 10 is also peeled off.

As a rooftop structure of a building using a panel that solves the problem of the panel, there is one disclosed in Japanese Patent Application Laid-Open No. 2001-0270117 (Patent Document 3). By simplifying the shape of the panel, it enables inexpensive and mass production, forms a pyramidal convex panel surface, and makes the rooftop surface on which the panel is laid uneven, and the wind is strong. By alleviating this, it is possible to prevent the corner panel from peeling off due to the wind, and the panel has a simple structure with a heat insulating layer made of foamed resin on the back surface of the skin made of hard resin, so it is an inexpensive panel. be able to. Furthermore, a large number of protrusions are formed on the back surface of the panel, and by forming many ventilation layers with the floor surface of the rooftop, water-containing air evaporating from the concrete on the floor surface of the building rooftop. It has an excellent effect of preventing the panel from swelling due to water vapor pressure.

However, the panel disclosed in Japanese Patent Application Laid-Open No. 2001-0270117 (Patent Document 3) has a problem that water leakage from joints between adjacent flanges and gaps between holding members cannot be sufficiently prevented, and further, due to an earthquake. It had the problem of being easily destroyed.

In order to solve this problem, in Patent Document 4 (Japanese Patent Laid-Open No. 2018-009435), a reinforcing material (glass fiber reinforced plastic) covering the entire adjacent flange portion of the laid panel is attached, and vibration absorption is performed on the reinforcing material (glass fiber reinforced plastic). It is disclosed that a material (hard urethane) is attached so as to cover the reinforcing material.

Japanese Unexamined Patent Publication No. 3-87467 Japanese Unexamined Patent Publication No. 9-279713 Japanese Unexamined Patent Publication No. 2001-0270117 Japanese Unexamined Patent Publication No. 2018-009435

However, the rooftop structure of the building disclosed in Patent Document 4 prevents water leakage and is not easily destroyed by an earthquake, but has a problem that an offensive odor is generated during construction and burdens the environment. The present inventor has found that. That is, the glass fiber reinforced resin is usually an unsaturated polyester resin reinforced with glass fibers, and the unsaturated polyester resin dissolves polyester obtained by a condensation reaction of maleic anhydride and glycol in a styrene monomer, methyl methacrylate, or the like. The present inventor has discovered that since the resin is heat-cured at the time of construction, styrene monomer and the like may disperse into the environment after construction and may cause damage to the environment due to a foul odor.

The present invention is easy to construct, can be mass-produced, uses an inexpensive panel, can sufficiently prevent water leakage from gaps between fixing members and holding members, is not easily destroyed by an earthquake, and generates an offensive odor. The challenge is to provide a rooftop structure for the building that does not impose a burden on the environment.

The rooftop structure of the building grasped from the description of claim 1 for solving the above problems is
It is a rooftop structure of a building with quadrilateral panels spread on the rooftop of the building.
Flat flanges with a constant width are formed on the four sides of the panel.
The inside of the flange portion is divided into one or more sections,
In the section, a cone-shaped convex panel surface formed by a ridge line raised at a predetermined inclination angle is formed.
The panel has a skin made of hard resin, a heat insulating layer made of foamed resin is provided on the back surface of the skin, and a large number of protrusions are formed on the back surface of the heat insulating layer. Forming a ventilation layer,
It is characterized in that a vibration-absorbing waterproof coating film that covers the entire adjacent flange portion of the panel is formed so as to be in contact with the flange portion .

Further , the rooftop structure of the building grasped from the first aspect is characterized in that the vibration-absorbing waterproof coating film is formed as a multi-layer structure in which two or more vibration-absorbing waterproof coating films are laminated.

Further , in the roof structure of the building grasped from the description of claim 1 , the material forming the vibration-absorbing waterproof coating film is urethane rubber, and each vibration-absorbing waterproof coating film is made of soft urethane rubber or It is characterized by being formed of hard urethane rubber .

Next, the rooftop structure of the building grasped from claim 2 is a drainage panel raised from the inner peripheral edge at an inclination angle steeper than the inclination angle of the panel surface along the inner peripheral edge of the flange portion. Form a surface,
A flat reinforcing flange portion is formed along the upper peripheral edge of the drainage panel surface.
When there are two or more sections, a flat reinforcing flange portion connected to the reinforcing flange portion is also formed between the facing peripheral edges of each section.
A slope rising from the reinforcing flange portion is formed inside each section at an inclination angle steeper than the inclination angle of the panel surface.
It is characterized in that the ridgeline is raised from the upper edge of the slope to form a cone-shaped convex panel surface.

Next, the means grasped from the description of claim 3 is to attach an insulating sheet covering the joints formed between the adjacent flange portions of the panel and the presser plate, and to cover the joints. It is characterized by forming the vibration-absorbing waterproof coating film.

Next, the means grasped from the description of claim 4 is characterized in that a heat-shielding paint is applied to the exposed surface of the laid panel and the exposed surface of the vibration-absorbing waterproof coating film. ..

Next, how the problem is solved by the means grasped from the description of each claim will be described. First, in the means grasped from the description of claim 1, the panel is stylized by laying a quadrilateral panel on the roof of a building, and a flat flange portion having a constant width is formed on the four sides of the panel. This makes it possible to simplify the shape of the panel and to press and fix the flanges of the adjacent panels that are butted against each other.

Further, the inside of the flange portion is divided into one or more sections, and a cone-shaped convex panel surface formed by a ridge line is formed on the inside of each section by raising it at a predetermined inclination angle, and the rooftop is laid with panels. The strength of the wind can be softened by making the surface of the surface uneven to increase the resistance. The panel has a simple structure in which a heat insulating layer made of foamed resin is provided on the back surface of the skin made of hard resin. Furthermore, a large number of protrusions are formed on the back surface of the heat insulating layer, and by forming many ventilation layers with the floor surface of the roof, water vapor evaporates from the concrete on the floor surface of the building roof. It is possible to release air and prevent the panel from swelling due to water vapor pressure.

Furthermore, by forming and pasting a vibration-absorbing waterproof coating film that covers the entire adjacent flanges of the paved panels over the entire roof structure of the building, it is possible to prevent gaps between the flanges and holding members when it rains. The water leakage is effectively prevented, and even in the event of a larger earthquake, the vibration-absorbing waterproof coating film absorbs the shaking of the earthquake, so that the panel can be effectively prevented from being destroyed. In Patent Document 4, a reinforcing material made of glass fiber reinforced resin is attached so as to cover the entire adjacent flange portion, and a vibration absorbing material made of hard urethane is attached thereto. Can exhibit seismic resistance and antistatic property only by forming a vibration-absorbing waterproof coating film. Furthermore, if a material that does not generate an offensive odor is selected as the material for forming the vibration-absorbing waterproof coating film, it is possible to construct the rooftop of a building that is environmentally friendly.

As a material for forming the vibration-absorbing waterproof coating film, urethane rubber, polymer cement (EVA, SBR, methacrylic resin), and acrylic rubber can be used. Among these, urethane rubber is preferable because it has excellent vibration water absorption and is easy to level.

Further , according to the means grasped from the description of claim 1 , by forming the vibration-absorbing waterproof coating film as a multilayer structure in which two or more vibration-absorbing waterproof coating films are laminated, vibration absorption of the multilayer structure is performed. Even if any of the waterproof coatings is damaged, water leakage is effectively prevented as a whole. For example, even if one of the vibration-absorbing waterproof coating films is cracked and the crack spreads widely and is damaged and the waterproofness is impaired, the crack does not spread to the other vibration-absorbing waterproof coating film. Vibration-absorbing waterproof The waterproofness of the entire coating film is ensured.
In the following description, an example of a two-layer structure in which a first vibration-absorbing waterproof coating film and a second vibration-absorbing waterproof coating film are superposed as a multi-layered structure will be described. It is not limited to layers.

Further , according to the means grasped from the description of claim 1 , urethane rubber is used as a material for forming the vibration-absorbing waterproof coating film, and the urethane rubber has a strange odor unlike the glass fiber reinforced resin. The rooftop structure of the building of the present invention is environmentally friendly because it does not occur. Further, since urethane rubber is excellent in vibration water absorption and leveling property, it is possible to form and attach a vibration-absorbing waterproof coating film having a smooth surface. The formed vibration-absorbing waterproof coating film effectively prevents water leakage from between flanges and gaps between holding members when it rains, and effectively develops vibration -absorbing property in the event of a large earthquake .

Next, according to the means grasped from the description of claim 2 , the drainage panel surface is raised from the inner peripheral edge at an inclination angle steeper than the inclination angle of the panel surface along the inner peripheral edge of the flange portion. By forming a recess, a recess surrounded by the drainage panel surface and the flange portion is formed, so that drainage is efficiently performed, and vibration-absorbing waterproof coating using a vibration-absorbing waterproof coating film, particularly urethane rubber described later, is used. A coating film can be easily formed.

Further, a flat reinforcing flange portion is formed along the upper peripheral edge of the drainage panel surface, and when there are two or more sections, a flat reinforcing flange portion connected to the reinforcing flange portion is also formed between the facing peripheral edges of each section. Since the reinforcing flange portion is formed, the strength of the entire panel is improved.
Further, on the inside of each section, a slope rising from the reinforcing flange portion at an inclination angle steeper than the inclination angle of the panel surface is formed, and the ridgeline is raised from the upper edge of the slope to form a cone-shaped convex shape. By forming the panel surface of the above, the slope and the reinforcing flange portion form a recess, so that the rainwater flowing from the panel surface is efficiently drained.

Next, according to the means grasped from the description of claim 3 , vibration absorption is absorbed by attaching an insulating sheet that covers the joints between the adjacent flange portions of the laid panel and the presser plate. When the property waterproof coating film is formed by using urethane rubber, it is possible to prevent the urethane stock solution from leaking from the gap between the panels or the gap where the anchor bolt is driven. In addition, leakage of rainwater can be prevented more reliably. As the insulating sheet, a vinyl chloride sheet or a rubber sheet can be used.

Next, according to the means grasped from the description of claim 4 , the heat-shielding paint is applied to the exposed surface of the laid panel and the exposed surface of the vibration-absorbing waterproof coating film on the rooftop structure of the building. By applying it over the entire surface, the heat-shielding paint absorbs ultraviolet rays, so that the durability of the rooftop structure of the building can be improved.

According to the present invention, which is grasped from the detailed description of the invention based on the description of claim 1, the panel is stylized by laying a quadrilateral panel on the roof of a building, and a constant width is set on the four sides of the panel. By forming a flat flange portion and simplifying the shape of the panel, mass production can be enabled and an inexpensive panel can be obtained. Further, the inside of the flange portion is divided into one or more sections, and in each section, a pyramidal convex panel surface formed by a ridge line is formed by raising the drainage panel surface at an inclination angle gentler than the inclination angle, and the panels are laid down. Since the surface of the rooftop can be made uneven to soften the strength of the wind, it is possible to prevent the corner panels from peeling off due to the wind, and thus to prevent the panels on the entire rooftop from peeling off. Since the panel has a simple structure in which a heat insulating layer made of foamed resin is provided on the back surface of the skin made of hard resin, it can be made into an inexpensive panel. Furthermore, a large number of protrusions are formed on the back surface of the panel, and by forming many ventilation layers with the floor surface of the rooftop, water-containing air evaporating from the concrete on the floor surface of the building rooftop. It is possible to prevent the panel from swelling due to water vapor pressure.

In addition, a vibration-absorbing waterproof coating film that covers the entire adjacent flanges of the paved panels is provided in contact with the flanges, so the vibration-absorbing waterproof coating film effectively prevents water leakage and causes a larger earthquake. Even if this occurs, the vibration-absorbing waterproof coating film absorbs the shaking of the earthquake, so that the panel can be prevented from being destroyed. The vibration-absorbing waterproof coating film has both water leakage prevention and earthquake resistance, and does not generate an offensive odor as compared with the roof structure of a building disclosed in Patent Document 4, and is a glass fiber reinforced resin. Since it is possible to form a thick vibration-absorbing waterproof coating film because it does not use, it is more excellent in earthquake resistance.
Since the reinforcing material using the glass fiber reinforced resin disclosed in Patent Document 4 has initial curing, the construction time can be shortened. On the other hand, the method of forming a vibration-absorbing waterproof coating film without forming and attaching a reinforcing material has a drawback that it takes a long time to construct. However, the present inventor paid attention to the effect of not generating an offensive odor and the greater effect of obtaining better earthquake resistance, and adopted a configuration in which only a vibration-absorbing waterproof coating film was formed. It was done.

According to the present invention, which is grasped from the detailed description of the invention based on the description of claim 1 , the vibration-absorbing waterproof coating film is formed as a multilayer structure in which two or more vibration-absorbing waterproof coating films are laminated. Therefore, even if the vibration-absorbing waterproof coating film of any of the layers is damaged, the effective prevention of water leakage and the absorption of the shaking of the earthquake are not lost as a whole.

According to the present invention, which is grasped from the detailed description of the invention based on the description of claim 1 , since urethane rubber is used as a material for forming a vibration-absorbing waterproof coating film, when it rains. In addition, prevention of water leakage from between flanges and gaps between holding members, and vibration absorption in the event of a large earthquake are effectively exhibited. Further, since urethane rubber is excellent in leveling property, the completed vibration-absorbing waterproof coating film is excellent in surface smoothness. Further, since the urethane rubber does not generate an offensive odor due to the volatilization of styrene monomer and the like, an environment-friendly rooftop of the building is provided. The urethane rubber includes soft urethane rubber and hard urethane rubber, and either of them can be appropriately selected and used. Unlike the glass fiber reinforced resin disclosed in Patent Document 4, urethane rubber has a drawback that it takes a long time to construct because initial curing does not occur. However, the present inventor pays attention to the fact that in addition to the effect of not generating an offensive odor obtained by using urethane rubber, a larger effect of obtaining better earthquake resistance can be obtained, and the urethane rubber vibrates. It adopts a structure that forms an absorbent waterproof coating film.

According to the present invention, which is grasped from the detailed description of the invention based on the description of claim 2 , a drainage panel surface having a steeper inclination angle than the panel surface is provided along the inner peripheral edge of the flange portion. As a result, a recess surrounded by the drainage panel surface and the flange portion is formed, so that drainage is efficiently performed, and a vibration-absorbing waterproof coating film, particularly a vibration-absorbing waterproof coating film using urethane rubber described later, is easily formed. Can be formed into.

Further, when a flat reinforcing flange portion is formed along the upper peripheral edge of the drainage panel surface and the inside of the reinforcing flange portion is divided into two or more sections, it is also between the facing peripheral edges of each section. Since the reinforcing flange portion connected to the reinforcing flange portion along the upper peripheral edge of the drainage panel surface is formed, the strength of the panel is improved and the rainwater flowing from the panel surface can be efficiently drained.

According to the present invention, which is grasped from the detailed description of the invention based on the description of claim 3 , an insulating sheet covering the joints formed between the flange portions of the laid panels and the presser plate is attached. Since it is worn, it is possible to prevent rainwater from leaking. In addition, since the panel body and the vibration-absorbing waterproof coating film are not directly adhered to the portion to which the insulating sheet is attached, the panel body can move freely without following the movement of the panel body in the event of an earthquake. Therefore, the vibration absorption is improved. If the reinforcing material uses a glass fiber reinforced resin, the glass fiber reinforced resin has initial curing even if a method of directly covering the joints with the glass fiber reinforced resin is adopted without using an insulating sheet. Therefore, there is little possibility that the resin will leak from the joints. On the other hand, if a vibration-absorbing waterproof coating film made of acrylic rubber or urethane rubber is directly formed on the joint using a liquid material for ease of construction, a vibration-absorbing waterproof coating film made of urethane rubber will be formed. When formed using undiluted solutions, these materials do not undergo initial curing and can lead to liquid leakage. In order to prevent this leakage, it is preferable to attach an insulating sheet.

Next, according to the present invention, which is grasped from the detailed description of the invention based on the description of claim 4 , the exposed surface of the paved panel and the vibration-absorbing waterproof coating film are exposed. By applying the heat-shielding paint to the surface, the heat-shielding paint absorbs ultraviolet rays, which prevents deterioration of the panel structure, improves durability, and doubles the usable period, which was about 5 years in the past. It's been about 10 years.

It is a top view of the panel which is an Example of this invention. It is a back view of the panel shown in FIG. It is a top view which shows an example of the rooftop structure of a building in a state where the panel of FIG. 1 is laid down and fixed to the floor surface of the rooftop of a building with anchor bolts. It is an embodiment of the present invention, and is a vertical sectional view showing a state in which an insulating sheet is attached to the bottom of a recess formed by a drainage panel surface and a flange portion. An example of the rooftop structure of a building in which the panel shown in FIG. 1 is laid down, fixed to the floor surface of the rooftop of the building with anchor bolts, and an insulating sheet covering the joints between the flanges and the presser plate is attached. It is a plan view which shows. It is a vertical cross-sectional view which is the recess formed by the drainage panel surface and the flange part, and shows an example of the state in which an insulating sheet and a one-layer vibration-absorbing waterproof coating film are attached. A recess formed by the drainage panel surface and the flange portion, which is a two-layer vibration-absorbing waterproof coating film composed of an insulating sheet, a first vibration-absorbing waterproof coating film, and a second vibration-absorbing waterproof coating film. It is a vertical sectional view which shows an example of the state which was formed. It is a figure which shows the conventional example. It is a figure which shows the other conventional example. It is a schematic diagram which shows the conventional corner structure.

Hereinafter, embodiments of the present invention will be described. First, in the embodiment of the present invention grasped from the description of claim 1, as shown in FIG. 3, the present invention has a rooftop structure of a building in which a quadrilateral panel 18 is laid on the rooftop floor surface 10 of the building. As shown in FIG. 1, flat flange portions 19 having a constant width are formed on the four sides of the panel 18. The inside of the flange portion 19 is divided into one or more sections, and a cone-shaped convex panel surface 20 formed by a ridge line 23 raised at a predetermined inclination angle is formed in the section. The number of compartments is preferably an even number from the viewpoint of symmetry, and 4 ⁿ (n is an integer) is more preferable in order to make all the compartments square.

In the panel 18, as shown in FIG. 4, a heat insulating layer 25 made of foamed resin is provided on the back surface of the skin 24 made of hard resin, and as shown in FIG. 4, the back surface of the panel 18 (the back surface of the heat insulating layer 25) is provided with a heat insulating layer 25. A protrusion 25a is formed, and many ventilation layers 25b are formed between the protrusion 25a and the floor surface 10 on the roof.

Further, as shown in FIG. 6, a vibration-absorbing waterproof coating film 38 is applied from one drainage panel surface 35a to the other drainage panel surface 5b so as to cover the entire adjacent flange portions 19a and 19b of the laid panels. It is formed and pasted over the entire rooftop structure of the building so as to cover the building. As the first vibration-absorbing waterproof coating film, it is necessary to select one that does not generate an offensive odor during construction, and urethane rubber is preferably used, for example.

Further , in the embodiment of the present invention grasped from the description of claim 1 , as shown in FIG. 7, the first vibration-absorbing waterproofing is performed so as to cover the entire adjacent flange portions 19a and 19b of the paved panel. The coating film 38a is formed so as to be in contact with the flange portion over the entire roof structure of the building from one drainage panel surface 35a to the other drainage panel surface 5b, and the second vibration-absorbing waterproof coating film 38b is first. It is formed so as to cover the vibration-absorbing waterproof coating film 38a. As the second vibration-absorbing waterproof coating film, it is necessary to select one that does not generate an offensive odor during construction, and urethane rubber is preferably used, for example.

The vibration-absorbing waterproof coating film made of urethane rubber is coated with a urethane stock solution containing a polyisocyanate component, a polyamine component, a polyol component, etc. so as to cover the bottom of the recess formed by the flange portion 19 and the drain panel surface 35. It can be formed by subjecting it to a polymerization reaction and curing it.

Further , in the embodiment of the present invention grasped from the description of claim 1 , since the material forming the vibration-absorbing waterproof coating film is urethane rubber, it is excellent in vibration absorption and surface smoothness. It is possible to form an environment-friendly vibration-absorbing waterproof coating film that does not generate an offensive odor during construction.

Next, in the embodiment of the present invention grasped from the description of claim 2 , as shown in FIGS. 1 and 4, the inclination of the inner peripheral edge 19c of the flange portion 19 is steeper than the inclination angle of the panel surface 20. It forms a drainage panel surface 35 that is raised at an angle.

Further, as shown in FIGS. 1 and 4, a flat reinforcing flange portion 36a is formed along the upper peripheral edge 35c of the drainage panel surface 35, and when there are two or more sections, the facing peripheral edges of the respective sections are formed. A flat reinforcing flange portion 36b connected to the reinforcing flange portion 36 is also formed between them.

Further, as shown in FIGS. 1 and 4, a slope 37 rising from the reinforcing flange portion 36 at an inclination angle steeper than the inclination angle of the panel surface 20 is formed inside each section, and the upper edge 37c of the slope 37 is formed. The ridge line 23 is raised from the surface to form a cone-shaped convex panel surface 20.

Next, in the embodiment of the present invention grasped from the description of claim 3 , as shown in FIGS. 4, 5, 6, and 7, the joints between the adjacent flange portions 19 of the paved panels 18 are formed. An insulating sheet 30 that covers the pressing plate 28 (28a, 28b) is attached to the top. Note that FIG. 5 is a plan view showing a state in which the insulating sheet 30 is attached only in the vertical direction, and finally, the edge sheet 30 is also attached in the horizontal direction, and the flange portion 19 at the corner of the panel is formed. In the orthogonal portion, the insulating sheet 30 attached in the vertical direction and the insulating sheet attached in the horizontal direction are attached in two layers. In addition, in the form shown in FIGS. 6 and 7, the case where the insulating sheet 30 is attached is shown, but in the present invention, the attachment of the insulating sheet 30 is omitted and the panel is next to the panel. A vibration-absorbing waterproof coating film can be directly formed so as to cover the entire matching flange portions 19a and 19b.

Next, in the embodiment of the present invention grasped from the description of claim 4 , a heat-shielding paint is applied to the exposed surface of the paved panel and the exposed surface of the vibration-absorbing waterproof coating film. Apply over the entire rooftop structure of (not shown).

Hereinafter, an embodiment of the present invention will be described. FIG. 1 is a front view of the panel 18, which is a substantially square shape. A flat flange portion 19 is formed on all four sides. The width of the flange portion 19 was 65 mm and the thickness was 2 mm. However, the dimensions can be changed as long as the object of the present invention of improving the strength of the outer peripheral edge is not impaired.

As shown in FIGS. 1, 4, 6, and 7, inside the flange portion 19, a drainage panel surface 35 that rises from the inner peripheral edge 19c along the peripheral edge 19a at an inclination angle capable of draining rainwater 35. As shown in FIGS. 4, 6, and 7, the drainage panel surface 35a, the drainage panel surface 35b facing the drainage panel surface 35a, and the flange portion 19 form a concave portion to cause rain. Even if it rains, it is easy to flow without accumulating rain. In addition, a vibration-absorbing waterproof coating film using urethane rubber can be easily formed.
4A, 6 and 7 are cross-sectional views of a recess formed by the drainage panel surface 35 and the flange portion 19.

As shown in FIG. 1, a flat reinforcing flange portion 36a is formed along the upper peripheral edge 35c of the drainage panel surface 35, the inside of the reinforcing flange portion 36a is divided into 16 sections, and between the facing peripheral edges of each section. Also, a flat reinforcing flange portion 36b is formed. Since the reinforcing flange portion 36 is provided, the strength of the panel 18 is improved.

Inside each of the 16 sections, a slope 37 rising from the reinforcing flange portion 36 is formed, and is formed by a ridge line 23 raised from the upper peripheral edge 37c of the slope 37 at an inclination angle looser than the inclination angle of the drainage panel surface 35. A pyramid-shaped convex panel surface 20 is formed (FIG. 1).
The surface of the panel surface 20 is uneven. Since the slope 37 facing the slope 37 and the reinforcing flange portion 36b form a recess, rainwater can be easily drained. Further, by making the panel surface 20 a quadrangular pyramid-shaped convex shape and providing unevenness on the panel surface 20, the unevenness of the entire rooftop on which the panel 18 is laid is increased, and the resistance to the wind blowing through the rooftop surface is increased. Therefore, the negative pressure applied to the corner panel can be reduced.

FIG. 2 is a back view of FIG. 1, and as shown in FIG. 4, a protrusion 25a is formed on the back surface of the panel 18, and many ventilation layers 25b are formed between the panel 18 and the floor surface 10 of the roof. By letting air containing water evaporating from the concrete on the floor surface 10 of the roof of the building, the swelling of the panel 18 due to the water vapor pressure is prevented. Further, a large protrusion 25c is provided (nine in this embodiment) so as to have strength against a load applied to the upper surface of the panel 18.

In the embodiment of the embodiment shown in FIGS. 4, 5, 6, and 7, the insulating sheet 30 that covers the joint formed by abutting the adjacent flange portions 19a and the flange portions 19b of the laid panels. Is pasted. However, the attachment of the insulating sheet 30 can be omitted.

In the embodiment of the embodiment shown in FIG. 6, a recess is formed by the drainage panel surfaces 35a and 35b facing the adjacent flange portions 19a and 19b, and the adjacent flange portions 19a and the flange portion 19b thrust at the bottom of the recess. An insulating sheet 30 is attached so as to cover the joints formed by being combined, and a vibration-absorbing waterproof coating film 38 is applied on the flange portion 19a from one drainage panel surface 35a to the other drainage panel surface 35b. , 19b is formed so as to cover the entire 19b and to be in contact with the flange portion . By attaching the insulating sheet 30, when the vibration-absorbing waterproof coating film is formed of urethane rubber, the urethane stock solution is prevented from leaking from the gap between the flange portion 19a and the flange portion 19b. Can be done.

In the embodiment of the embodiment shown in FIG. 7, a recess is formed by the drainage panel surfaces 35a and 35b facing the adjacent flange portions 19a and 19b, and the adjacent flange portions 19a and the flange portion 19b thrust at the bottom of the recess. An insulating sheet 30 is attached so as to cover the joints formed by the joints, and the first vibration-absorbing waterproof coating film 38a is applied thereto from one drainage panel surface 35a to the other drainage panel surface 35b. It is formed so as to cover the entire flange portions 19a and 19b. Further, a second vibration-absorbing waterproof coating film 38b is formed from one drainage panel surface 35a to the other drainage panel surface 35b so as to cover the first vibration-absorbing waterproof coating film 38a. , The total thickness of the first vibration-absorbing waterproof coating film 38a and the second vibration-absorbing waterproof coating film 38b is the same as the thickness of the one-layer vibration-absorbing waterproof coating film 38 shown in FIG. Is preferable.

In the embodiment shown in FIG. 3, the panel 18 is laid down, anchor bolts are driven into the corners of the panel 18, and the flange portions 19 are pressed by the anchor bolt head 27a and the pressing plate 28a to fix the four panels, and the panels are fixed. By driving anchor bolts into the middle part where the outer peripheral side surfaces of the above face each other, pressing the flange portion 19 with the anchor bolt head 27b and the holding plate 28b, and driving a total of eight anchor bolts into one panel. , Adjacent panels 18 are fixed.

Although not shown, the heat-shielding paint is applied to the exposed surface of the paved panel and the exposed surface of the vibration-absorbing waterproof coating film.

The operation of this embodiment configured as described above will be described below. As shown in FIG. 3, the quadrilateral panel 18 is laid on the roof floor surface 10 of the building, and the corners of the flat flange portions 19 of each other are fixed by one holding plate 28 to form the panel 18 in a simple shape. Can be shaped like this. Then, as shown in FIG. 1, the shape of the panel 18 is simplified by forming a flat flange portion 19 having a constant width on the four sides of the panel 18, and further, a specific inside of the flange portion 19 is specified. By forming the quadrangular pyramid-shaped convex panel surface 20 formed by the ridge line 23, the surface of the rooftop on which the panel 18 is laid becomes an uneven surface, increasing the resistance of the wind blowing on the rooftop and increasing the strength of the wind. It can relieve the ridge. The panel 18 can be stylized by having a simple structure in which a heat insulating layer 25 made of foamed resin is provided on the back surface of the skin 24 made of hard resin.

Since one or more pyramidal convex panel surfaces 20 formed by the ridge line 23 are formed inside the flange portion 19, the rooftop surface on which the panel 18 is laid becomes an uneven surface, and the wind blowing on the rooftop You can increase the resistance to soften the strength of the wind.

As shown in FIG. 1, since the convex panel surface 20 is formed inside each section formed inside the flange 19, rainwater does not collect on the panel surface 20. Further, a slope 37 is provided at the lower portion of the panel surface 20 so as to surround the convex portion formed by the panel surface 20, and a flat reinforcing flange portion 36 is provided at the lower portion of the slope 37. Since a recess is formed by the two facing slopes and the reinforcing flange portion 36, rainwater that has descended from the panel surface 20 flows down the slope 37, further flows through the recess, and flows into the drainage panel surface 35. , Efficient drainage is possible. Further, the strength of the panel 18 is improved by providing the reinforcing flange portion 36.

Since the panel surface 35a, the panel surface 35b, and the flange 19 facing each other form a recess and act as a drainage groove, rainwater flowing into the drainage panel surface 35 goes down the drainage panel surface 35 on the downhill and serves as a drainage groove. It flows into the recess and is drained to the outside. Further, when the vibration-absorbing waterproof coating film is formed of urethane rubber, the desired vibration-absorbing waterproof coating film is formed by pouring a urethane stock solution into the recesses to cover the bottom of the recesses and causing a polymerization reaction to solidify. Can be easily formed.

In the embodiment of the embodiment shown in FIG. 6, the vibration-absorbing waterproof coating film 38 is applied from the drainage panel surface 35a to the drainage panel surface 20b so as to cover the entire adjacent flange portions 19a and 19b and to be in contact with the flange portions 19 . By being installed over the entire rooftop structure of the building until it reaches, water leakage from the joints between the flanges and the gaps between the holding members is reliably prevented, and even in the event of a larger earthquake, vibration absorption and waterproofing are possible. Since the coating film 38 absorbs the shaking of the earthquake, it is possible to effectively prevent the destruction of individual panels and the entire rooftop structure of the building. As the material for forming the vibration-absorbing waterproof coating film, a material that does not generate an offensive odor should be selected, and for example, urethane rubber can be used. Further, as compared with the rooftop structure of the building disclosed in Patent Document 4, a vibration-absorbing waterproof coating film can be formed instead of the reinforcing material made of glass-reinforced fiber, so that the vibration-absorbing property is more excellent in earthquake resistance. A waterproof coating can be formed.

In the embodiment of the embodiment shown in FIG. 7, the roof of the building is covered from the drainage panel surface 35a to the drainage panel surface 35b so as to cover the entire adjacent flange portions 19a and 19b. Since the first vibration-absorbing waterproof coating 38a is covered with the second vibration-absorbing waterproof coating 38b over the entire structure and the roof structure of the building, the joints between the flanges and the holding member Even if a larger earthquake occurs, the first vibration-absorbing waterproof coating 38a and the second vibration-absorbing waterproof coating 38b absorb the shaking of the earthquake. Therefore, it is possible to effectively prevent the destruction of individual panels and the entire roof structure of the building. Further, since the vibration-absorbing waterproof coating film has a two-layer structure including the first vibration-absorbing waterproof coating film 38a and the second vibration-absorbing waterproof coating film 38b, either the first or the second. Even if the vibration-absorbing waterproof coating film is scratched and damaged, the waterproofness and earthquake resistance of the vibration-absorbing waterproof coating film as a whole are not impaired. As the material for forming the first and second vibration-absorbing waterproof coating films, a material that does not generate an offensive odor should be selected, and for example, urethane rubber can be used. Further, as compared with the rooftop structure of the building disclosed in Patent Document 4, since the first vibration-absorbing waterproof coating film can be formed instead of the reinforcing material made of glass-reinforced fiber, it is more excellent in earthquake resistance. A vibration-absorbing waterproof coating film can be formed.

In the embodiment of the embodiment shown in FIGS. 6 and 7, an insulating sheet covering the joint formed between the adjacent flange portions 19 and the flange portions 19 of the paved panel 18 and the presser plate is attached. Therefore, when forming a vibration-absorbing waterproof coating film, especially a vibration-absorbing waterproof coating film using urethane rubber, the urethane stock solution leaks from the gap between the panels or the gap where the anchor bolt is driven. Can be prevented. In addition, water leakage can be more reliably waterproofed.

Further, as shown in FIG. 3, a panel 18 formed into a substantially square shape is laid down, the panel 18 is raised from the flange portion 19, the upper surface of the roof is made uneven, the resistance of the wind blowing on the roof is increased, and the wind is increased. By weakening the strength (wind pressure) of the corner panel and increasing the rectifying effect of the corner panel and the bending strength in the peeling direction, the peeling of the corner panel can be prevented more reliably, and the rooftop can be stretched. It is also possible to prevent peeling of the entire panel 18 that has been formed.

Further, as shown in FIG. 3, by fixing the corners and sides of the panel with anchor bolts 27 and holding plates 28, the rooftop structure of the building using the panels can be easily constructed, and the completed rooftop structure can be easily constructed. The structure is stable for a long period of time.

Although not shown, the entire rooftop structure of the building is coated with a heat-shielding paint, which suppresses deterioration due to ultraviolet rays and greatly extends the usable life.

1a, 1b Conventional panel 2 Surface material 3 Back material 4 Insulation material 5 Joint cover fixture 6 Joint cover 7 Screw 8 Anchor bolt 9 Joint 10 Building roof floor 11 Board 12 Bolt 13 Core material 14 Joint plate 16 Vertical wall 17 Corner panel 18 Panel 19, 19a, 19b Flange 19c Inner peripheral edge of flange 20, 20a, 20b Panel surface 23 Pyramid ridge 24 Skin 25 Insulation layer 25a Protrusion 25c Large protrusion 25b Ventilation layer 27 Ankabolt 27a Ankabolt head 28, 28a, 28b Pressing plate 30 Insulation sheet 35, 35a, 35b Drain panel surface 35c Upper peripheral edge of drain panel surface 35 36, 36a, 36b Reinforcing flange 37 Slope 37c Upper edge of slope 38 Vibration absorbing waterproof coating 38a First vibration-absorbing waterproof coating 38b Second vibration-absorbing waterproof coating

Claims (4)

It is a rooftop structure of a building with quadrilateral panels spread on the rooftop of the building.
Flat flanges with a constant width are formed on the four sides of the panel.
The inside of the flange portion is divided into one or more sections,
In the section, a cone-shaped convex panel surface formed by a ridge line raised at a predetermined inclination angle is formed.
The panel has a skin made of hard resin, a heat insulating layer made of foamed resin is provided on the back surface of the skin, and a large number of protrusions are formed on the back surface of the heat insulating layer. Forming a ventilation layer,
A vibration-absorbing waterproof coating film that covers the entire adjacent flange portion of the panel is formed so as to be in contact with the flange portion.
The vibration-absorbing waterproof coating film is formed as a multilayer structure in which two or more vibration-absorbing waterproof coating films are laminated, and the material for forming the vibration-absorbing waterproof coating film is urethane rubber, and each vibration is further formed. The rooftop structure of a building characterized by the absorbent waterproof coating being formed of soft urethane rubber or hard urethane rubber .
Along the inner peripheral edge of the flange portion, a drainage panel surface raised from the inner peripheral edge at an inclination angle steeper than the inclination angle of the panel surface is formed.
A flat reinforcing flange portion is formed along the upper peripheral edge of the drainage panel surface.
When there are two or more sections, a flat reinforcing flange portion connected to the reinforcing flange portion is also formed between the facing peripheral edges of each section.
A slope rising from the reinforcing flange portion is formed inside each section at an inclination angle steeper than the inclination angle of the panel surface.
The rooftop structure of a building according to claim 1, wherein the ridgeline is raised from the upper edge of the slope to form a cone-shaped convex panel surface.
It is characterized in that an insulating sheet covering the joints formed between adjacent flanges of the laid panel and the presser plate is attached, and the vibration-absorbing waterproof coating film is formed on the insulating sheet. The rooftop structure of the building according to claim 1 or 2 .
The rooftop structure of a building according to any one of claims 1 to 3 , wherein a heat-shielding paint is applied to the exposed surface of the paved panel and the exposed surface of the vibration-absorbing waterproof coating film. ..

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