JP2007009523A - Roof material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roof material capable of having the excellence in flying sparks resistance in the case of fire and having difficulty making impairment to also have an advantage over safety in the case of earthquake. <P>SOLUTION: A noncombustible back material 2 is integrally laminated on the back of a synthetic resin made-roof material body 1 to form the roof material A1. Since the back material 2 is noncombustible, it is excellent in flying sparks resistance, and even if the synthetic resin made-roof material body 1 is partially thermally melted by heat of flying sparks, since a melting resin is received by the noncombustible back material 2 to prevent it from falling or opening a hole, a sufficient fire-proofing function is exhibited. The roof material A1 integrally laminating the noncombustible back material 2 on the synthetic resin made-roof material body 1 has difficulty making a crack, and since there are few dangers of impairment in the case of earthquake disasters, it is advantageous also in terms of safety. The roof material body 1 has translucency, and when the noncombustible back material 2 is the translucent roof material having translucency or a large number of light permeable holes, a lighting roof can be constructed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a roofing material having excellent fire resistance.

  Conventionally, corrugated plates, folded plates, flat plates, dome-shaped toplights, etc., formed of polyvinyl chloride or polycarbonate have been used as roofing materials made of synthetic resin. However, these synthetic resin roofing materials have a problem that when a spark comes in the event of a fire, the heat melts and forms a hole, making it difficult to prevent fire.

  Therefore, when building a roof that passes the spark test specified in the Building Standards Act using the above synthetic resin roofing material, a glass plate or the like is placed under the roofing material to provide fire resistance. Such a method has been proposed (Patent Document 1).

However, the work of placing and fixing the glass plate on the lower side of the roofing material is cumbersome, so there is a problem that the workability is deteriorated, and the glass plate is easy to break during an earthquake, etc. was there.
JP-A-11-2005626

  The present invention was made to address the above problems, and can be constructed with the same simple work as that of a conventional synthetic resin roof material. The solution is to provide a roof material that is less likely to be damaged in the event of an earthquake disaster and that is advantageous in terms of safety.

  In order to solve the above-described problems, the roof material of the present invention is characterized in that a non-combustible back material is laminated and integrated on the back surface of a synthetic resin roof material body.

  The roofing material of the present invention may be a roofing material in which the roofing material main body has translucency and the incombustible back material has translucency or has a large number of light transmitting holes. Moreover, as a nonflammable back surface material, any of a metal mesh sheet, an expanded metal, a punching metal, a glass fiber sheet, a carbon fiber sheet, and a nonflammable paper may be sufficient. Furthermore, the roof material body is composed of a multilayer material composed of a top surface material, a bottom surface material, and a plurality of ribs connecting them, a mountain portion having a flat top portion and a valley portion having a flat bottom portion alternately coupled. It may be any one of a folded plate material, a corrugated plate material formed into a corrugated shape, and a flat or curved flat plate material.

  In the roof material of the present invention, since the non-combustible back material is laminated and integrated on the back surface of the synthetic resin roof material body, it is troublesome to individually attach the roof material body and the non-combustible back material to the roof structure material. In addition, the roof can be constructed by a simple mounting operation similar to that of a conventional synthetic resin roof material. Moreover, since the back material is non-flammable, the roof material of the present invention has excellent fire resistance, and even if the roof material body made of synthetic resin is partially melted by the heat of the sparks flying in the event of a fire, it melts. Since the resin is received by the non-combustible back material and does not drop or open a hole, sufficient fire prevention performance is exhibited. Further, a roof material obtained by laminating and integrating a non-combustible back material on a synthetic resin roof material main body is difficult to break, and has a low risk of being damaged in the event of an earthquake, etc., which is advantageous in terms of safety.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic sectional view of a roofing material according to an embodiment of the present invention, and FIG. 2 is a schematic sectional view of a roofing material according to another embodiment of the present invention.

  A roof material A1 shown in FIG. 1 is obtained by laminating and integrating a non-combustible back material 2 having no light transmission holes on the back surface of a synthetic resin roof material body 1. The roof material A2 shown in FIG. A nonflammable back surface material 20 having a large number of light transmission holes 20a is laminated and integrated on the back surface of the resin roof material body 1.

  The roofing material body 1 in these roofing materials A1 and A2 is a multi-layered material having a hollow structure comprising an upper surface material 1a, a lower surface material 1b, and a plurality of ribs 1c connecting them, and is made of polycarbonate resin, acrylic resin, polyester Extruded with resin, polyvinyl chloride resin, translucent synthetic resin such as reinforced resin containing glass fiber in these resins, and has total light transmittance of 20-95%. I have. In particular, the roof material body 1 made of polycarbonate resin is preferably used because it has high mechanical strength and good weather resistance.

  When the roofing material body 1 is a multilayer material as described above, it is possible to impart rigidity higher than that of a single-layer material with a smaller amount of resin than that of a single-layer material, and the advantage that the amount of resin melted by a spark during a fire can be reduced There is. Moreover, since the heat insulation effect is exhibited by the hollow portion 1d surrounded by the upper surface material 1a, the lower surface material 1b, and the rib 1c, there is also an advantage that the heat retaining ability in the room (particularly the attic) is improved.

  The specific dimensions of the multilayer material are not particularly limited, but in the case of a multilayer material made of polycarbonate resin, the thicknesses of the upper surface material 1a and the lower surface material 1b are each 0.1 mm or more, preferably 0.1 to 0.1 mm. 1.0 mm, the thickness of the rib 1c is 0.1 mm or more, preferably 0.1 to 1.0 mm, and the height of the rib 1c is 2 mm or more, preferably 2 to 50 mm (more preferably 10 to 40 mm). The interval between the ribs 1c is preferably set to 5 mm or more, and preferably 5 to 50 mm. With this setting, the roof material body 1 having both rigidity, heat insulation, and strength can be obtained.

  The roof material main body 1 may be a translucent multilayer material composed of the above-described translucent synthetic resin, or may be a multilayer material composed of a translucent reinforced resin in which glass fibers are added and mixed. Further, a light-shielding multilayer material made of a colored light-transmitting or light-shielding synthetic resin colored by adding or mixing a pigment or the like may be used. Translucent or colored translucent multi-layer materials have the advantage of having a daylighting function, while light-shielding multi-layer materials have the advantage of blocking radiant heat and constructing colorful roofs with various colors. , Both are preferable as the roofing material body 1.

  In the present invention, “translucency” and “colored translucency” are terms that mean that the total light transmittance is 20% or more, and “light shielding” means the total light transmittance. It is a term that means less than 20%.

  As the pigment to be contained in the multilayer material, various colored pigments are used in addition to white pigments such as titanium oxide and calcium carbonate, black pigments such as carbon black. When these pigments are contained in such a content that the total light transmittance of the multilayer material is less than 20%, the light-shielding roof material body 1 can be obtained, and the content that the total light transmittance is 20% or more. Since it can be set as the colored translucent roofing material main body 1 if it contains, it should just change content according to a use.

  When the roofing material body 1 is a light-transmitting multilayer material, a light-transmitting or light-blocking noncombustible back material 2 having no light transmitting holes is laminated and integrated as in the roofing material A1 shown in FIG. Or like the roof material A2 shown in FIG. 2, the nonflammable back surface material 20 which has many light transmission holes 20a is laminated | stacked and integrated.

  As the light-transmitting noncombustible back material 2 having no light transmitting holes, for example, a glass fiber sheet obtained by knitting a yarn or tape in which glass fibers are bundled and having no opening, A glass fiber sheet having an opening ratio of less than 5%, wherein the percentage of voids in the knitted or woven structure is less than 5%, or the yarn or tape is bonded by using a binder so as not to be unwound. Or the glass fiber sheet with a resin etc. which apply | coated the acrylic resin, the silicone resin, the fluororesin, etc. thinly to each said glass fiber sheet are used. Among these, the resin-coated glass fiber sheet coated with a silicone resin is excellent in non-flammability, does not generate gas, and does not unravel the sheet, and is excellent in lamination to the roofing material body 1. It is most preferable because it can be used as a material. For example, a thin metal plate such as aluminum, stainless steel, or steel is used as the light-blocking non-combustible back material 2 having no light transmission hole. Moreover, as the nonflammable back material 20 having a large number of light transmitting holes 20a, for example, the glass fiber sheet has an opening ratio of 5% or more, or a carbon fiber sheet knitted with carbon fibers, and the opening ratio is A mesh sheet knitted with fine metal wires such as stainless steel and steel, with an opening ratio of 5% or more, and a metal plate with a large number of cuts was stretched to form a large number of meshes. Expanded metal with an aperture ratio of 5% or more, punched metal with a number of apertures formed by punching a metal plate, with an aperture ratio of 5% or more, punching non-combustible paper Punching incombustible paper having a large number of apertures and having an aperture ratio of 5% or more is used. In the present invention, the “light transmission hole” is a broad concept term that includes, as described above, an opening, a mesh, a void having a large knitted or woven structure (a void having an opening ratio of 5% or more), and the like.

  The nonflammable back surface material 20 having the light transmitting holes 20a preferably has an opening ratio of 5 to 80%, and if it is smaller than 5%, the daylighting performance is lowered, so that it is difficult to construct the daylighting roof. On the other hand, when it becomes larger than 80%, the synthetic resin of the roof material main body 1 melted by the heat of sparks easily falls from the light transmission holes 20a of the non-combustible back material 20, so that a hole penetrating vertically is formed in the roof material A2. It becomes easy. A more preferable aperture ratio is 5 to 30%.

  The nonflammable back materials 2 and 20 may be laminated and integrated by adhering to the back surface of the roof material body 1 using an adhesive, or may be laminated by being fixed to the back surface of the roof material body with a fastener or the like. It may be integrated. Of the non-combustible back material 2 having no light transmitting holes, the glass fiber sheet, the carbon fiber sheet, the non-combustible paper, and the non-combustible back material 20 having the light transmitting holes are heat-softened on the back surface of the roof material main body 1 and bonded. By doing so, it may be laminated and integrated in a semi-embedded state.

  The roof material A1 in which a light-transmitting non-flammable back material 2 having no light transmitting holes is laminated and integrated on the back surface of a roof material body 1 made of a light-transmitting multilayer material is a molten resin of the roof material body 1 caused by flying fire. In addition to being able to reliably prevent the fall with the nonflammable back material 2, there is an advantage that a daylighting roof can be constructed because it has a daylighting function. Further, the roof material A1 in which the light-blocking non-combustible back material 2 having no light transmitting holes is laminated and integrated on the back surface of the roof material main body 1 made of a light-transmitting multilayer material is a molten resin made of the non-combustible back material 2. In addition to the fall prevention effect, there is an effect of blocking the radiant heat by the nonflammable back material 2, and there is an advantage that a roof in which the color (metal color) of the nonflammable back material 2 can be seen through the roof material body 1 can be constructed. And roof material A2 which laminated and integrated the nonflammable back surface material 20 which has many light transmission holes 20a in the back surface of the roof material main body 1 which consists of a translucent multilayer material is the molten resin by the nonflammable back surface material 20. In addition to the fall prevention effect, there is an advantage that a daylighting roof can be constructed because it has a daylighting function.

  On the other hand, when the roofing material body 1 is a light-shielding multilayer material colored with the above-described pigment or the like, it has a light-transmitting or light-shielding non-flammable back material 2 and a light transmitting hole 20a. Any of the nonflammable back materials 20 may be laminated and integrated. Such a roofing material has an advantage that a colorful roof can be constructed because the roofing material body 1 exhibits various colors depending on the pigment. In particular, the roofing material in which a white pigment is contained in the roofing material body 1 has an advantage of suppressing an increase in indoor temperature due to light reflection.

  FIG. 3 is a partial cross-sectional view showing an example of use of the roof material A2, wherein 3 is a roof material mounting frame provided vertically and horizontally on the roof, and 4 is a multi-layer material made of synthetic resin having translucency. is there. The roof material mounting frame 3 has a convex portion 3a at its upper end and support pieces 3b, 3b projecting from both lower ends of the convex portion 3a to both sides, and an L-shaped support piece projecting to both sides at its lower end. A frame made of a metal such as an aluminum alloy having 3c and 3c, and the edges of the adjacent roofing materials A2 and A2 are placed on the support pieces 3b and 3b via waterproof packings 5 and 5, respectively. Yes. The upper end edges of the roofing materials A2 and A2 are mounted with metal pressing plates 3d that hold the roofing materials A2 and A2 through the waterproof packings 5 and 5, and are fixed to the convex portions 3a with screws 3e. The other three edges of the roofing materials A2 and A2 are also attached to the roofing material mounting frame 3 in the same manner as described above. Under the respective roof materials A2 and A2, the multilayer materials 4 and 4 made of synthetic resin are arranged, and the edges thereof are placed and fixed on the L-shaped support pieces 3c and 3c of the roof material mounting frame 3. ing. This multilayer material 4 is the same as the roof material main body 1 of the roof material A2, and is a multilayer material having a light-transmitting structure of a hollow structure in which an upper surface material and a lower surface material are connected by a plurality of ribs.

  When the daylighting roof having the structure as described above is constructed using the roofing material A2, even if the roofing material main body 1 of the roofing material A2 is partially melted by the heat of the sparks, the non-combustible having the light transmitting holes 20a of the roofing material A2 The molten back material 20 prevents the molten resin from falling, and even if the molten resin falls from the light transmission hole 20a of the non-combustible back material 20, it is received by the lower multilayer material 4 and therefore falls down indoors. Never do. Further, since the molten resin falling from the light transmission hole 20a is considerably cooled before reaching the lower multilayer material 4, there is no fear that the lower multilayer material 4 is melted by the heat of the dropped resin.

  The roof material A1 is also attached to the roof material attachment frame 3 in the same manner as described above, and a daylighting or light-shielding roof is constructed. However, the nonflammable back surface material 2 of the roof material A1 has no light transmission hole 20a. Since the molten resin does not fall, the lower multilayer material 4 may be omitted.

  The roofing material A3 of the embodiment shown in FIG. 4 is the above-described light-transmitting synthetic resin, or a light-shielding synthetic resin colored by containing a pigment or the like, or a reinforced resin further containing glass fibers. The light-transmitting or light-shielding roof material main body 10 made of a flat plate formed using the above-described light-transmitting or light-shielding non-combustible back material 2 having no light transmitting holes is laminated and integrated. is there. The thickness of the roofing material body 10 made of a flat plate material is not particularly limited. For example, in the case of the roofing material body 10 made of polycarbonate resin, it is preferable that the thickness is about 1 to 15 mm in consideration of practical strength and the like. The roof material body 10 made of a flat plate material may be slightly curved.

  The roof material A4 of the embodiment shown in FIG. 5 is formed by laminating the non-combustible back material 20 having the above-described many light transmission holes 20a on the back surface of the light-transmissive or light-shielding roof material body 10 made of the above-described flat plate material. It is an integrated one.

  These roof materials A3 and A4 are also attached to the roof material attachment frame 3 or the like when the roof is constructed, similarly to the above-described roof materials A1 and A2. Even if the synthetic resin of the roofing material body 10 is partially melted by a fire at the time of a fire, the molten resin is prevented from falling by the noncombustible back materials 2 and 20 and penetrates the roofing materials A3 and A4. Since no holes are opened, sufficient fire prevention performance is exhibited.

  The roof material A5 of the embodiment shown in FIG. 6 is the above-described light-transmitting synthetic resin, or a light-shielding synthetic resin colored by containing a pigment or the like, or a reinforced resin further containing glass fibers. The light-transmitting or light-shielding roof material main body 11 made of a folding plate formed by using the above-mentioned light-transmitting or light-shielding non-combustible back material 2 having no light transmitting holes is laminated and integrated. It is. The roofing material main body 11 made of this folding plate material is formed by alternately connecting a flat crest at the top and a flat trough at the bottom, but has a sharp crest at the top and a sharp trough at the bottom. It may be alternately coupled. Although the dimension of each part of the roofing material main body 11 is not specifically limited, for example, in the case of the roofing material main body 11 made of polycarbonate resin, considering practical strength and the like, the thickness is 1.0 to 3.0 mm, the mountain part and the valley part Is preferably set to 50 to 200 mm, and the pitch interval between the peaks is set to 150 to 300 mm.

  The roof material A6 of the embodiment shown in FIG. 7 has the nonflammable back material 20 having the above-described many light transmission holes 20a on the back surface of the translucent or light-shielding roof material body 11 made of the above-mentioned folding plate material. It is an integrated stack.

  When constructing a roof using these roofing materials A5 and A6, as shown in FIG. 8, the roofing material A6 is placed on the tight frame 7 fixed to the roof purlin 6 and the adjacent roofing. What is necessary is just to fix and attach to the tight frame 7 with a fastener (not shown) in the state which accumulated and connected the edge part of material A6, A6. Although FIG. 8 shows a case where the roof is constructed using the roof material A6, it is needless to say that the roof material A5 is similarly attached to the tight frame 7 and the roof is constructed.

  When the roof is constructed using the roofing materials A5 and A6 in this manner, even if the synthetic resin of the roofing material main body 11 is partially melted due to a jumping fire at the time of a fire, the fall of the molten resin is a nonflammable back surface material. 2 and 20, and since no through-holes are opened in the roofing materials A5 and A6, sufficient fire prevention performance is exhibited. In addition, when constructing a roof using the roof material A6, by providing a non-combustible sheet, a resin sheet, etc. between the main building material 6 and the tight frame 7, the molten resin should be light of the non-combustible back material 20. Even if it falls from the transmission hole 20a, it is preferable to be received by the sheet.

  The roof material A7 of the embodiment shown in FIG. 9 is the above-described light-transmitting synthetic resin, or a light-shielding synthetic resin colored by adding a pigment or the like, or a reinforced resin further containing glass fibers. The light-transmitting or light-shielding nonflammable back material 2 having no light transmitting holes is laminated and integrated on the back surface of the light-transmitting or light-shielding roof material body 12 made of a corrugated sheet formed into a corrugated shape. Is. The dimensions of each part of the roofing material body 12 made of this corrugated sheet material are not particularly limited. For example, in the case of the roofing material body 12 made of polycarbonate resin, the thickness is 0.5 to 1.2 mm in consideration of practical strength and the like. It is preferable to set the wave height (the height of the peak) to 5 to 40 mm and the wavelength (the interval between the peak and peak) to 25 to 150 mm.

  The roof material A8 of the embodiment shown in FIG. 10 is formed by laminating the non-combustible back material 20 having the above-described many light transmission holes 20a on the back surface of the light-transmissive or light-shielding roof material body 11 made of the corrugated sheet material. It is an integrated one.

  When constructing a roof using these roofing materials A7, A8, the roofing material A7, A8 is placed on the main building, and the ends of the adjacent roofing materials are overlapped and connected to each other. It is sufficient to fix and attach to the purlin. When the roof is constructed using the roofing materials A7 and A8 in this way, even if the synthetic resin of the roofing material body 12 is partially melted due to a spark at the time of a fire, the fall of the molten resin is nonflammable backside material. 2 and 20, and since no through-holes are opened in the roofing materials A7 and A8, sufficient fire prevention performance is exhibited. In addition, when constructing a roof using the roof material A8, by providing a non-combustible sheet, a resin sheet, etc. between the main building material 6 and the roof material A8, the molten resin should be light of the non-combustible back material 20. It is preferable that the sheet is received by the sheet even if it falls from the transmission hole 20a.

It is a schematic sectional drawing of the roof material which concerns on one Embodiment of this invention. It is a schematic sectional drawing of the roof material which concerns on other embodiment of this invention. It is a fragmentary sectional view showing an example of use of the roofing material. It is a schematic sectional drawing of the roofing material which concerns on other embodiment of this invention. It is a schematic sectional drawing of the roofing material which concerns on other embodiment of this invention. It is a schematic sectional drawing of the roofing material which concerns on other embodiment of this invention. It is a schematic sectional drawing of the roofing material which concerns on other embodiment of this invention. It is a fragmentary sectional view showing an example of use of the roofing material. It is a schematic sectional drawing of the roofing material which concerns on other embodiment of this invention. It is a schematic sectional drawing of the roofing material which concerns on other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,10,11,12 Roof material main body 1a Upper surface material 1b Lower surface material 1c Rib 2 Nonflammable back surface material without light transmission hole 20 Nonflammable back surface material having many light transmission holes 20a Light transmission hole A1, A2, A3 A4, A5, A6, A7, A8 Roofing material

Claims (4)

  A roof material comprising a non-combustible back material laminated and integrated on the back surface of a synthetic resin roof material body.   The translucent roofing material according to claim 1, wherein the roofing material main body has translucency, and the incombustible back surface material has translucency or a large number of light transmitting holes.   The light-shielding roofing material according to claim 1, wherein the nonflammable back material is any one of a metal mesh sheet, an expanded metal, a punching metal, a glass fiber sheet, a carbon fiber sheet, and a nonflammable paper. A folding plate in which a roof material body is composed of a multilayer material composed of a top surface material, a bottom surface material, and a plurality of ribs connecting them, a mountain portion having a flat top portion, and a valley portion having a flat bottom portion. The roof material according to any one of claims 1 to 3, wherein the roof material is any one of a material, a corrugated sheet material formed into a corrugated shape, and a flat or curved flat plate material.

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