CN111441538A - Roof finishing material and roof reconstruction method - Google Patents
Roof finishing material and roof reconstruction method Download PDFInfo
- Publication number
- CN111441538A CN111441538A CN201910143541.2A CN201910143541A CN111441538A CN 111441538 A CN111441538 A CN 111441538A CN 201910143541 A CN201910143541 A CN 201910143541A CN 111441538 A CN111441538 A CN 111441538A
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- roof
- finishing material
- roof finishing
- adhesive layer
- existing slate
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
- E04D1/28—Roofing elements comprising two or more layers, e.g. for insulation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0281—Repairing or restoring roofing or roof covering
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The present invention relates to a roof finishing material and a roof reconstruction method. The invention provides a roof finishing material with good construction performance, which can shorten construction time. Further, a roof finishing material and a construction method are provided which do not cause appearance defects when an existing slate roof is rebuilt. The roof finishing material is selected from an asphalt roof slab formed by impregnating and coating asphalt on a glass fiber base material and spreading and pressing mineral sand on the surface and a non-combustible roof slab formed by forming a mixed layer of an inorganic filling material and a resin material on both surfaces of the glass fiber base material and spreading and pressing the mineral sand on the surface, and has a substantially rectangular shape including an upper side, a lower side, a left side and a right side in a plan view, wherein the upper side and the lower side have a length of 900-1200 mm, and the left side and the right side have a length of 420-540 mm.
Description
Technical Field
The present invention relates to a roof finishing (potting) material laid on the surface of a sloping roof of a house and a method for rebuilding (modifying) a slate (スレート) roof using the same, and more particularly, to a roof finishing material having a characteristic shape and excellent in workability and a method for rebuilding an existing slate roof using the same.
Background
Roofing sheets (Roofing sheets) as roof finishing materials are widely used because they are lighter in weight than tile Roofing materials and metal Roofing materials and have good workability in construction sites. In particular, Asphalt shingles (Asphalt shingles) in which Asphalt is impregnated into a glass fiber base material and colored sand is pressure-bonded to the surface thereof, and incombustible shingles (incombtibiles) in which a mixed layer of an inorganic filler and a resin material is formed on a glass fiber base material have been used as roof finishing materials in japan and many other countries, including the united states, because they are excellent in water resistance and durability.
In the case of a wooden base, nailing and an adhesive are generally used in combination as a method for installing a roof panel (シングル). In the reconstruction of the existing flat slate roof, the same method is used in the laying construction method for the existing roof.
In recent years, as a problem, there have been proposed various proposals for improving workability of a roof slab by reducing a load on a constructor. For example, patent document 1 discloses an asphalt shingle having an adhesive layer (a body frame) and a release sheet. Further, patent document 2 discloses an asphalt roofing shingle including a nailing region for efficiently nailing nails.
Further, since colored sand covering the surface of a roof deck peels off year after year, patent document 3 discloses treating the sand with a drying oil to impart water repellency and improve the peeling property.
Further, in a roof obtained by roofing membrane repair (シングル cover a roof with straw き), discoloration to dark green may occur due to the generation of algae on the surface with the passage of time, and thus patent document 4 discloses a method for imparting anti-algae properties.
The adhesive layer disclosed in patent document 1 and the nailing region disclosed in patent document 2 contribute to improvement of workability, but further improvement is required to reduce the burden on the operator and improve workability. In addition, the method disclosed in patent document 3 cannot completely prevent the sand from peeling off, and there is a possibility that the sand may peel off due to weather over the year. Further, in the method disclosed in patent document 4, it is necessary to add a triazine-based algaecide.
On the other hand, as a roof material for a house of a single family, a flat slate is used because of a short construction period and a good design property, but discoloration and water leakage may occur due to deterioration with time, and an existing means for rebuilding a slate roof is required. One of them is a method for constructing a conventional slate roof with asphalt shingles or noncombustible shingles, and when the conventional shingles are used, there is a problem that disadvantages in appearance and irregularities are generated due to the difference in cover a roof with straw feet (or tile edges) (cover a roof with straw き feet) (action).
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2004-156367
Patent document 2: japanese Kokai publication No. 2009-503309
Patent document 3: japanese laid-open patent publication No. 2006-299632
Patent document 4: japanese patent laid-open publication No. 2004-162482
Disclosure of Invention
Problems to be solved by the invention
Accordingly, the present invention provides a roofing material which has improved workability by reducing the number of necessary components and nailing number per unit construction area by enlarging the shape of the existing roofing plate and has algae resistance by providing a resin layer carrying high molecular weight polyethylene particles on the surface of the roofing plate to shorten the time required for positioning, and which is free from sand peeling; further, a construction method is provided in which, when an existing slate roof (a Kolonia roof) is reconstructed, the appearance of unevenness generated by a laying construction method is not deteriorated.
When the product of the present invention is used in addition to the rebuilding, that is, when it is used in the new construction, the number of necessary products per unit construction area can be further reduced. Specifically, when the slate roof is reconstructed, the thickness is cover a roof with straw feet, 182mm and 5.5 pieces/m2In contrast, for example, the short side of 485mm can beThe cover a roof with straw feet were enlarged to 217mm, and the number of necessary items was reduced to 4.6 pieces/m2. Furthermore, if the short side is 540mm, the cover a roof with straw feet can be expanded to 254mm, so the number of necessary pieces can be reduced to 4.1 pieces/m2。
Means for solving the problems
In order to solve the above problems, a first aspect of the present invention is a roof finishing material selected from an asphalt roof panel in which asphalt is impregnated into a glass fiber base material and mineral sand is spread and pressure bonded to a surface of the asphalt roof panel, and a noncombustible roof panel in which a mixed layer of an inorganic filler and a resin material is formed on both surfaces of the glass fiber base material and mineral sand is spread and pressure bonded to a surface of the glass fiber base material, wherein the roof finishing material has a substantially rectangular shape including an upper side, a lower side, a left side, and a right side in a plan view, the upper side and the lower side have lengths of 900 to 1200mm, and the left side and the right side have lengths of 420 to 540 mm.
The second invention is a method for reconstructing an existing slate roof having cover a roof with straw feet of 182 ± 5mm, comprising: A) and a step of disposing the roof finishing material so that cover a roof with straw feet are 182 + -5 mm.
The present invention includes the following embodiments.
[1] The roof finishing material is selected from an asphalt roof slab formed by impregnating and coating asphalt on a glass fiber base material and spreading and pressing mineral sand on the surface and a non-combustible roof slab formed by forming a mixed layer of an inorganic filling material and a resin material on both surfaces of the glass fiber base material and spreading and pressing the mineral sand on the surface, and has a substantially rectangular shape including an upper side, a lower side, a left side and a right side in a plan view, wherein the upper side and the lower side have a length of 900-1200 mm, and the left side and the right side have a length of 420-540 mm.
[2] [1] the roof finishing material, wherein the roof finishing material has a cut at both left and right ends of the upper side, a cut between the center of the left and right sides to the upper end, and a cut at the center of the upper side.
[3] [1] the roof finishing material according to [1] or [2], wherein the roof finishing material is composed of a base portion which is a portion above a straight line extending in the left-right direction at a position spaced 177 to 230mm upward from the lower edge, and a tab (タブ) which is a portion below the straight line.
[4] The roof finishing material according to any one of [1] to [3], wherein an adhesive layer is provided on a surface of the roof finishing material at a position separated from a lower side upward (だけ) by a dimension exceeding 187mm, and an attachment prevention means for preventing attachment between the roof finishing materials when overlapping the roof finishing materials is provided at least in a region of a back surface corresponding to a region where the adhesive layer is provided.
[5] [3] the roof finishing material according to any one of the above aspects, wherein an adhesive layer is provided on at least a part of the back surface of the flap of the roof finishing material, and the adhesive layer is covered with a release film or a release paper.
[6] The roof finishing material according to any one of [1] to [5], wherein the asphalt shingle or the noncombustible shingle further comprises a resin layer on the surface side of the layer of mineral sand, and comprises a high molecular polyethylene powder supported on the surface side of the resin layer.
[7] [6] the roof finishing material, wherein the resin layer is a cured product of an ultraviolet-curable coating material.
[8] The existing slate roof reconstruction method is an cover a roof with straw-foot 182 +/-5 mm existing slate roof reconstruction method, and comprises the following steps: A) disposing the roof finishing material according to any one of [1] to [7] such that cover a roof with straw feet are 182 ± 5 mm.
[9] [8] the method for rebuilding a conventional slate roof, which comprises, after the step A): B) and (3) nailing the roof finishing material.
[10] [9] the method for rebuilding an existing slate roof, wherein a portion of the existing slate roof other than the 3 overlapped portions of the slate pieces is nailed.
[11] [9] the method for reconstructing an existing slate roof according to [9] or [10], wherein an adhesive layer is provided on a surface of the roof finishing material at a position spaced apart from the lower side upward by a dimension exceeding 187mm, and nailing is performed at a position above a region where the adhesive layer is provided.
[12] The method for rebuilding an existing slate roof according to any one of [8] to [11], comprising, before the step a): C) and (3) a step of attaching the lower cover a roof with straw material (lower cover a roof with straw material) to an existing slate roof.
ADVANTAGEOUS EFFECTS OF INVENTION
The roof finishing material of the present invention can reduce the number of components and the number of nails per unit construction area when used for rebuilding an existing slate roof, can shorten the construction time, and can avoid the occurrence of a poor uneven appearance when the existing slate roof rebuilding and laying construction method is adopted.
Drawings
Fig. 1 is a plan view of an example of the roof finishing material of the present invention.
Fig. 2 is a view showing the dimensions of the roof finishing material of fig. 1.
Fig. 3 is a cross-sectional view of an example of the roof finishing material of the present invention.
Fig. 4 is a cross-sectional view of another example of the roof finishing material of the present invention.
Fig. 5 is a plan view of another example of the roof finishing material of the present invention.
Fig. 6 is a cross-sectional view of another example of the roof finishing material of the present invention.
Fig. 7 is a plan view of another example of the roof finishing material of the present invention.
Fig. 8 is a plan view of another example of the roof finishing material of the present invention.
Fig. 9 is a plan view of another example of the roof finishing material of the present invention.
Fig. 10 is a plan view of another example of the roof finishing material of the present invention.
Fig. 11 is a plan view of a conventional roof finishing material.
Fig. 12 is a plan view showing a roof reforming method of the present invention.
Fig. 13 is a sectional view showing a roof reforming method of the present invention.
Fig. 14 is a sectional view of a modified roof using a conventional roof finishing material.
Fig. 15 is a photograph of the appearance of a roof modified using the roof finishing material of the present invention.
Fig. 16 is a photograph showing the appearance of a roof modified by using a conventional roof-finishing material.
Description of reference numerals
1 roof finishing Material
1' conventional roof finishing Material
11 upper side
12 lower edge
13 left side of
14 right side
15 incision
16. 17 cutting groove
18 straight line
19 base part
20 lobe
21 adhesive layer
22 sticking prevention means
23 Release film or paper
31 asphalt roof slab
32 glass fiber substrate
33 asphalt
34 impregnating and coating the glass fiber base material with asphalt
35 layer of mineral sand
36 layer of mineral particles
37 resin layer
38 high molecular polyethylene powder
41 incombustible roof slab
42 mixed layer of inorganic filler and resin material
51 existing slate roof
52 eave end
53 slate panels for constructing existing slate roofs
54 nailing position
55 nail
56 part cover a roof with straw material
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, the same or similar elements are denoted by the same reference numerals, and the drawings are changed in scale as appropriate for easier understanding. The present invention is not limited to the contents shown in the drawings.
The roof finishing material of the present invention is a roof finishing material selected from an asphalt roof panel in which asphalt is impregnated and coated on a glass fiber base material and mineral sand is spread and pressure bonded to a surface, and a noncombustible roof panel in which a mixed layer of an inorganic filler and a resin material is formed on both surfaces of a glass fiber base material and mineral sand is spread and pressure bonded to a surface, and is characterized in that the roof finishing material has a substantially rectangular shape including an upper side, a lower side, a left side and a right side in a plan view, the upper side and the lower side have lengths of 900 to 1200mm, and the left side and the right side have lengths of 420 to 540 mm.
Fig. 1 shows a plan view of an embodiment of a roof finishing material 1 according to the invention of the present application. Fig. 2 is a view showing the dimensions of the roof finishing material of fig. 1, and the numerals in fig. 2 indicate the dimensions in mm units.
Fig. 1 and 2 show (a) a front surface and (b) a rear surface. The rectangular shape in plan view has a top side 11 and a bottom side 12 each having a length of 1000mm and a left side 13 and a right side 14 each having a length of 485mm, and has notches 15 at both ends of the top side 11, a 20mm notch 16 for positioning between the center of the left side 13 and the right side 14 and the top end, and a 20mm notch 17 at the center of the top side 11. The notches 16 on the left and right sides 13, 14 are provided below the upper side at positions corresponding to the length of the cover a roof with straw feet. That is, when the cover a roof with straw feet are 182mm, the notch 16 is provided at a position 182mm below the upper edge. The roof finishing material 1 is composed of a base 19, which is a part above a straight line 18 extending in the left-right direction at a position spaced 177 to 230mm upward from the lower edge 12, and a tab 20, which is a part below the straight line 18. In the roof finishing material of fig. 1, the portion up to 195mm from the lower edge 12 is a tab 20, and the portion up to 290mm from the upper edge 11 is a base 19.
An adhesive layer 21 is provided on the surface of the roof finishing material 1 at a position spaced apart from the lower side upward by a dimension of only more than 187 mm. The adhesive layer 21 shown in fig. 1(a) is provided in 6 rectangular areas, the number of which may be several or 1, and the shape thereof is not particularly limited. The material forming the adhesive layer 21 is not particularly limited as long as it is a material having adhesiveness, and examples thereof include a modified asphalt-based adhesive, an acrylic-based adhesive, a butyl-based adhesive, and the like, and a modified asphalt-based adhesive is preferable. The binder is also referred to as a pre-cement. Nailing positions 54 are disposed above the adhesive layers 21. In fig. 1(a), 6 nailing positions 54a, 54b, 54c, 54d, 54e, 54f are shown, but it is not essential that nailing is performed at all nailing positions, for example, 54b and 54e in the case of fastening with 2 nails, 54a, 54c, 54d, 54f in the case of fastening with 4 nails, and fastening is performed to the substrate. On the back surface of the roof finishing material 1, at least in the region corresponding to the region where the adhesive layer is provided, attachment prevention means 22 for preventing attachment between the roof finishing materials when the roof finishing materials are overlapped with each other is provided. The sticking prevention means 22 is not limited as long as it has a function of preventing sticking between the roof finishing materials when the roof finishing materials are overlapped with each other, and is, for example, a release film or release paper, or a coating layer of a release agent such as silicone, and is preferably a release film or release paper. When a release film or release paper is used as the sticking prevention means 22, the release film or release paper is stuck to the back surface of the roof finishing material so that the release surface thereof is on the outside and cannot be removed. The position where the release film is attached is: where the release film or release paper covers the entire adhesive layer when overlapping between the roof finishing materials. The anti-sticking means (release film or release paper) 22 shown in fig. 1(a) is 1 strip, but the number and size thereof are not limited as long as the release film or release paper can cover the entire adhesive layer when the roof finishing materials are overlapped with each other.
In the roof finishing material of fig. 1, the adhesive layer is provided on the surface of the roof finishing material, but the adhesive layer may be provided on the back surface of the roof finishing material. When the adhesive layer is provided on the back surface of the roof finishing material, it is preferably provided on the back surface of the tab. In this case, the adhesive layer is provided on at least a portion of the back surface of the tab. That is, the adhesive layer may be provided on the entire back surface of the tab or may be provided on a part of the back surface of the tab. In the case where the adhesive layer is provided on a part of the back surface of the tab, the adhesive layer may be provided in a plurality of regions or may be provided in one region. Fig. 5 shows a plan view of a roof finishing material having an adhesive layer provided on substantially the entire back surface of a tab. Fig. 5(a) shows the front surface, and fig. 5(b) shows the rear surface. FIG. 6 shows a sectional view of line II-II in FIG. 5. In the case of the roof finishing material 1 shown in fig. 5, an adhesive layer 21 is provided on substantially the entire back surface of the tab 20. In order to prevent sticking between the roof finishing materials when they are overlapped, the adhesive layer 21 is preferably covered with a release film or a release paper 23. The area of the release film or paper 23 may be the same as the area of the adhesive layer 21 or may be slightly larger than the area of the adhesive layer 21. As the release film, a film formed by applying a release agent such as silicone to a thermoplastic resin or the like can be used, and as the release paper, a film formed by applying a release agent such as silicone to paper can be used.
The lower side may not be a straight line, but may be a non-straight line randomly having a flexibility of 3 to 20mm from the end. If the roof is non-linear, the arrangement of the adjacent roof finishing materials is not significantly deviated, and this is an appearance-preferred form.
Fig. 3 is a cross-sectional view of an example of the roof finishing material of the present invention, which is a cross-sectional view of a asphalt shingle in which asphalt is impregnated into a glass fiber substrate and mineral sand is spread and pressure-bonded on the surface, and is a cross-sectional view taken along line I-I in fig. 1. The asphalt shingle 31 has a layer 34 formed by impregnating and coating a glass fiber substrate 32 with asphalt 33 and a layer 35 of mineral sand on the surface side of the layer 34, and preferably further has a layer 36 of mineral particles on the back side of the layer 34, an adhesive layer 21 is provided on a part of the surface side of the layer 35, a resin layer 37 is provided on a region of the surface side of the layer 35 where the adhesive layer 21 is not provided, a high molecular polyethylene powder 38 is supported on the surface side of the resin layer 37, and an anti-sticking means (a release film) 22 is provided on a part of the back side of the layer 36 of mineral particles.
As the mineral sand, colored sand may be used. Examples of the mineral particles include natural slate sand made of clay slate, colored sand made of basalt, and the like. The mineral sand and the mineral powder particles can be the same or different in combination.
The resin layer 37 is a layer for preventing sand from peeling off and for rapidly positioning the roof finishing material during construction to reduce friction between the roof finishing materials, and can be formed by applying a resin such as an acrylic resin, a vinyl chloride resin, a polyurethane resin, an olefin resin, an epoxy resin, or a teflon (registered trademark) resin, preferably in a thickness of 2 to 20 μm, to the surface side of the mineral sand layer 35.
In order to further reduce the frictional resistance between the roof finishing materials, it is preferable to load the outermost surface with high molecular weight polyethylene powder. The high molecular weight polyethylene powder is a powder composed of polyethylene having an average molecular weight of 1500000 to 2500000, and the particle diameter (average particle diameter measured by the Coulter counter method) is not limited as long as the frictional resistance can be reduced, but is preferably 5 to 35 μm, more preferably 7 to 30 μm, and further preferably 8 to 15 μm. High molecular weight polyethylene powder is commercially available, and commercially available products can be used in the present invention. A commercially available product of high molecular weight polyethylene powder is "ミペロン" (registered trademark) available from Mitsui chemical Co., Ltd.
Fig. 4 is a cross-sectional view of another example of the roof finishing material of the present invention, which is a cross-sectional view of a noncombustible roof panel in which a mixed layer of an inorganic filler and a resin material is formed on both surfaces of a glass fiber substrate and mineral sand is scattered and pressure-bonded to the surface. The noncombustible roofing board 41 has a mixed layer 42 of an inorganic filler and a resin material on both surfaces of a glass fiber substrate 32, a layer 35 of mineral sand on the front surface side of the mixed layer 42 on the front surface side, and preferably further a layer 36 of mineral particles on the back surface side of the mixed layer 42 on the back surface side, an adhesive layer 21 provided on a part of the front surface side of the layer 35, a resin layer 37 provided on a region where the adhesive layer 21 is not provided on the front surface side of the layer 35, a high molecular polyethylene powder 38 supported on the front surface side of the resin layer 37, and an anti-sticking means (release film) 22 provided on a part of the back surface side of the layer 36 of mineral particles.
Examples of the inorganic filler constituting the mixed layer 42 include calcium carbonate, zinc oxide, magnesium hydroxide, and aluminum hydroxide. Examples of the resin material constituting the mixed layer 42 include modified asphalt, asphalt containing a synthetic rubber modifier, and the like.
The roof finishing material may have a shape other than the shape shown in fig. 1, and other examples of the shape of the roof finishing material are shown in fig. 7, 8, 9 and 10, in the drawings, W means the length of the upper side and the lower side, 900 to 1200mm, L means the length of the left side and the right side, 420 to 540mm, if the short side is smaller than 420mm, the nail cannot be driven into an optimum position, and the work efficiency cannot be improved, and on the contrary, if it exceeds 540mm, the handling becomes difficult, the work efficiency is not improved, and the finishing property of construction is also lowered.
Fig. 7(a) shows a simple rectangular shape. Fig. 7(b) has slits 16 on the left and right sides of the rectangle. In fig. 7(c), the upper left and right ends have cutouts 15 in addition to the left and right slits 16. In fig. 7(d), a notch 17 is provided in the center of the upper side, except for the left and right notches 16 and the notches 15 at the left and right ends of the upper side.
Fig. 8(a) shows an example without a tab. Fig. 8(b) shows an example with 1 tab 20. Fig. 8(c) shows an example with 3 tabs 20. Fig. 8(d) shows an example with 4 tabs 20.
Fig. 9(a) shows an example having left and right slits 16, upper left and right slits 15, and upper central slit 17, and no tab. Fig. 9(b) shows an example having left and right slits 16, upper left and right slits 15, and upper central slit 17, and 1 tab 20. Fig. 9(c) shows an example having left and right slits 16, upper left and right slits 15, and upper central slit 17, and 3 tabs 20. Fig. 9(d) shows an example having left and right slits 16, upper left and right slits 15, and upper central slit 17, and having 4 tabs 20.
Fig. 10(a) shows an example having 1 tab 20, which has left and right slits 16 and a central slit 17 at the top. Fig. 10(b) shows an example in which the slit 17 has left and right slits 16 and a center of the upper side, 1 tab 20, and the lower side is not straight. Fig. 10(c) shows an example in which the slit has left and right slits 16, a central slit 17 at the upper side, and slits 15 at the left and right ends at the upper side, and 1 tab 20 is provided, and the lower side is not straight.
Fig. 11 shows the shape of a conventional roof finishing material 1 ', W ' indicates the length of the upper and lower sides, 915mm, L ' indicates the length of the left and right sides, 305mm, fig. 11(a) shows a simple rectangular shape, fig. 11(b) shows an example having 1 flap, fig. 11(c) shows an example having 3 flaps, and fig. 11(d) shows an example having 4 flaps.
The method of the invention is a reconstruction method of the existing slate roof, which is a reconstruction method of the existing slate roof with cover a roof with straw feet of 182 +/-5 mm, and comprises the following steps:
A) and a step of disposing the roof finishing material so that cover a roof with straw feet are 182 + -5 mm.
The method of the present invention preferably further comprises, after the step a), a step B) of nailing the roof finishing material.
In the case of the nailing position, it is preferable to perform nailing at a portion other than the portion where 3 sheets overlap in the slate plate of the existing slate roof. That is, it is preferable to nail the existing slate roof at a portion where 2 slates are overlapped. When nailing is performed in 2 overlapped parts, nails are easily driven compared to 3 overlapped parts.
In addition, when the adhesive layer is provided on the surface of the roof finishing material at a position spaced apart from the lower side by a dimension of more than 187mm, it is preferable to perform nailing at a position above the region where the adhesive layer is provided.
The method of the present invention preferably further comprises, before the step a), a step C) of attaching the lower cover a roof with straw material to an existing slate roof.
The lower cover a roof with straw material is inserted between the existing slate roof and the roof finishing material of the present invention, whereby the waterproofness can be improved. As the lower cover a roof with straw material, for example, a nonwoven fabric impregnated with pitch can be used. The thickness of the lower cover a roof with straw material is not limited, but is preferably 0.6 to 2.0 mm. The lower cover a roof with straw material preferably has a back adhesive layer.
Fig. 12 is a plan view showing the roof rebuilding method of the present invention, and more specifically, shows an example in which a roof finishing material 1 of the present invention having an upper side and a lower side of 1000mm and left and right sides of 485mm is disposed on an existing slate roof having cover a roof with straw feet of 182mm so that cover a roof with straw feet become 182 mm. In the figure, a portion indicated by a broken line indicates an existing slate roof 51. The cover a roof with straw feet of the existing slate roof 51 are 182 mm. The roof finishing material 1 of the present invention is laid in order from the eaves end ( end) 52 of the existing slate roof 51 upward (i.e., toward the side of the girder). The roof finishing material 1 was laid so as to overlap the lower roof finishing material 1 with cover a roof with straw feet of 182mm in the vertical direction and half (i.e., 500mm) of the roof finishing material 1 in the horizontal direction. The cover a roof with straw feet can be made 182mm by fitting the upper end of the lower roof finishing material 1 to the cut groove 16 on the right side of the roof finishing material 1 superposed thereon. In order that the step height difference of the existing slate roof does not generate a raised portion after the rebuilding, it is preferable that the roof finishing material 1 is positioned so that the lower end of the slate plate 53 used in the existing slate roof 51 coincides with the lower end (i.e., the lower edge) of the roof finishing material 1 of the present invention. For fixing the roof finishing material 1, nailing is preferably performed. The nailing position 54 is preferably a portion where 2 slates of an existing slate roof overlap so that nails can be easily driven. In fig. 12, the portion denoted by D is a portion where 2 slates are overlapped, and the portion denoted by T is a portion where 3 slates are overlapped. The number of nails per 1 sheet of the roof finishing material is not limited, and in the case of 2 nails, it is preferable to perform nailing at positions shown in 54a and 54f of fig. 1, for example.
Fig. 13 is a sectional view taken along line II-II in fig. 12. In the figure, 53 is a slate plate constituting an existing slate roof, 56 is a lower cover a roof with straw material, 1 is a roof finishing material of the present invention, 55 is a nail, D is a portion where 2 slates are overlapped, and T is a portion where 3 slates are overlapped.
Fig. 14 is a sectional view of a modified roof using a conventional roof finishing material. In the conventional roof finishing material 1', the length of the left and right sides is 305mm, and the cover a roof with straw feet are 120 to 122 mm. The cover a roof with straw feet of the slate boards 53 of the existing slate roof are 182 mm. Since the cover a roof with straw foot of the conventional roof finishing material 1' does not match the cover a roof with straw foot of the slate plate 53 of the existing slate roof, a raised portion is generated at the portion indicated by the arrow.
Fig. 16 is a photograph showing the appearance of a roof modified by using a conventional roof-finishing material. It was found that the flatness of the roof finishing material was impaired and the appearance was poor at the raised portion caused by the difference between the conventional roof finishing material and the cover a roof with straw feet of the slate of the existing slate roof.
Fig. 15 is a photograph of the appearance of a roof modified using the roof finishing material of the present invention. The flatness of the roof finishing material is maintained and the appearance is good.
Examples
(example 1)
Asphalt was dip-coated on a soft base material made of glass fiber, colored sand was spread on the surface and back, after roll-bonding, a pregel portion and a release film were provided, and cut into the shape of fig. 2 using a die, thereby manufacturing an asphalt roof panel (roof finishing material) having the pregel portion on the surface, the release film on the back, and 1000mm upper and lower sides and 485mm left and right sides.
(example 2)
On the surface of the asphalt shingle of example 1, a urethane-based ultraviolet-curable coating material was applied to a portion other than the pre-adhesive agent (or portion) at a thickness of 20 μm using a spray coater, and the amount of the coating material was 5g/m2After high molecular weight polyethylene powder (ミペロン (registered trademark) manufactured by Mitsui chemical Co., Ltd.) having a particle size of 10 μm was dispersed, the resin was cured by ultraviolet irradiation to produce a roof finishing material having a resin layer.
Comparative example 1
A non-sagging asphalt shingle (roof finishing material) having a shape (W '915 mm and L' 305mm) shown in fig. 11(a) was produced by the same production method as in example 1.
(example 3)
The roof finishing material of example 1 was applied to an existing slate roof having cover a roof with straw feet and 182mm, a reconstruction was conducted so that cover a roof with straw feet became 182mm, and appearance defects (unevenness) of the modified roof were visually observed. A photograph of the appearance of the modified roof is shown in fig. 15. It is known that: when the roof finishing material of the present invention is used and the roof finishing material is constructed by the method of the present invention, the flatness of the roof finishing material is maintained and the appearance is good.
Comparative example 2
The roof finishing material of comparative example 1 was applied to an existing slate roof having cover a roof with straw feet and 182mm, a reconstruction was conducted so that cover a roof with straw feet became 122 to 124mm, and the appearance failure (unevenness) of the roof after the reconstruction was visually observed. A photograph of the appearance of the modified roof is shown in fig. 16. When the conventional roof finishing material was used, the raised portion caused by the difference in cover a roof with straw feet between the conventional roof finishing material and the slate plank of the conventional slate roof was observed, and it was found that: the planarity of the roof finishing material is impaired and the appearance is poor.
(example 4)
An existing slate roof having cover a roof with straw feet and 182mm in length was constructed with the roof finishing material of example 1 by using cover a roof with straw feet of 182mm by 2 construction technicians, and the time required for construction was measured to evaluate the workability. The results are shown in table 1. In table 1, the term "self-sealing" (セルフシール) means an adhesive material applied to a roof panel in advance in a factory.
(example 5)
The same procedure as in example 4 was repeated, except that the roof finishing material of example 2 was used in place of the roof finishing material of example 1. The results are shown in table 1.
Comparative example 3
An existing slate roof having cover a roof with straw feet and 182mm feet was worked with the roof finishing material of comparative example 1 by 2 working technicians setting cover a roof with straw feet at 140mm, and the time required for the working was measured to evaluate the workability. The results are shown in table 1. In table 1, the roof panel adhesive means an adhesive for roof panels applied to a construction site for bonding roof panels to each other.
[ TABLE 1]
TABLE 1
In the case of using the roof finishing material of example 1 or example 2, it was confirmed that the time required for construction can be shortened to about one third as compared with the case of using the roof finishing material of comparative example 1.
[ evaluation of Sand-flaking Property ]
The surface of the roof finishing material was evaluated for the sand-flaking property, and it was confirmed that the roof finishing material of example 2 did not have sand-flaking. On the other hand, the roof finishing material of comparative example 1 was exfoliated by the sand.
The evaluation of the sand-peeling property was carried out by rubbing the surface with a metal brush 34 times per minute in accordance with the standards of the japan society for waterproof materials and visually observing the presence or absence of the peeling of the sand.
[ evaluation of algae resistance ]
The evaluation of the algae-preventing property was carried out with reference to patent document 4, and it was confirmed that no algae were produced in example 2.
Industrial applicability
The roof finishing material of the present invention can be suitably utilized in the reconstruction of an existing slate roof. The existing slate roof rebuilding method of the present invention can be suitably utilized in the existing slate roof rebuilding.
Claims (12)
1. A roof finishing material is selected from a pitch roof panel formed by impregnating and coating a glass fiber base material with pitch and spreading and pressing mineral sand on the surface, and a noncombustible roof panel formed by forming a mixed layer of an inorganic filler and a resin material on both surfaces of the glass fiber base material and spreading and pressing the mineral sand on the surface, wherein the roof finishing material has a substantially rectangular shape including an upper side, a lower side, a left side and a right side in a plan view, the upper side and the lower side have a length of 900 to 1200mm, and the left side and the right side have a length of 420 to 540 mm.
2. The roof finishing material of claim 1, wherein the roof finishing material has a cut at left and right ends of the upper edge, a slot between the left and right sides from the center to the upper end, and a slot at the center of the upper edge.
3. The roof finishing material according to claim 1 or 2, wherein the roof finishing material comprises a base portion which is a portion above a straight line extending in the left-right direction at a position spaced 177 to 230mm upward from the lower edge and a tab which is a portion below the straight line.
4. The roof finishing material according to any one of claims 1 to 3, wherein an adhesive layer is provided on a surface of the roof finishing material at a position spaced apart from a lower side upward by a dimension of only more than 187mm, and an attachment prevention means for preventing attachment between the roof finishing materials when overlapping the roof finishing materials is provided at least at a region of a back surface corresponding to a region where the adhesive layer is provided.
5. The roof finishing material according to claim 3, wherein an adhesive layer is provided on at least a part of the back surface of the flap of the roof finishing material, and the adhesive layer is covered with a release film or a release paper.
6. The roof finishing material according to any one of claims 1 to 5, wherein the asphalt shingle or the noncombustible shingle further comprises a resin layer on a surface side of the layer of mineral sand, and comprises a high molecular polyethylene powder supported on the surface side of the resin layer.
7. The roof finishing material according to claim 6, wherein the resin layer is a cured product of an ultraviolet curable coating material.
8. The existing slate roof reconstruction method is an cover a roof with straw-foot 182 +/-5 mm existing slate roof reconstruction method, and comprises the following steps:
A) a process of arranging the roof finishing material according to any one of claims 1 to 7 so that cover a roof with straw feet are 182 ± 5 mm.
9. The method for rebuilding an existing slate roof according to claim 8, comprising, after the step a):
B) and (3) nailing the roof finishing material.
10. A method of rebuilding an existing slate roof of claim 9, wherein a portion of the existing slate roof other than the 3 overlapping portions of the slate boards is nailed.
11. A method of rebuilding an existing slate roof according to claim 9 or 10, wherein an adhesive layer is provided on a surface of the roof finishing material at a position spaced apart only by a dimension exceeding 187mm from below upward, and nailing is performed at a position above a region where the adhesive layer is provided.
12. A method of rebuilding an existing slate roof according to any one of claims 8 to 11, comprising, prior to step a):
C) and a step of attaching the lower cover a roof with straw material to an existing slate roof.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-006146 | 2019-01-17 | ||
| JP2019006146A JP6843163B2 (en) | 2019-01-17 | 2019-01-17 | Roof finishing materials and roof renovation methods |
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| Publication Number | Publication Date |
|---|---|
| CN111441538A true CN111441538A (en) | 2020-07-24 |
| CN111441538B CN111441538B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910143541.2A Active CN111441538B (en) | 2019-01-17 | 2019-02-27 | Roof finishing material and roof reconstruction method |
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| Country | Link |
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| JP (1) | JP6843163B2 (en) |
| CN (1) | CN111441538B (en) |
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| JPS5582416U (en) * | 1978-12-04 | 1980-06-06 | ||
| JPS6042818U (en) * | 1983-09-02 | 1985-03-26 | オリエンタル・アスベスト株式会社 | Diffuse reflective flexible non-combustible roofing material |
| JPH10121664A (en) * | 1996-10-23 | 1998-05-12 | Riboole:Kk | Light roof material and manufacture thereof |
| JP2001146819A (en) * | 1999-11-19 | 2001-05-29 | Nichiha Corp | Roof material |
| JP4068394B2 (en) * | 2002-05-17 | 2008-03-26 | 田島ルーフィング株式会社 | Roof finishing material and roofing structure |
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| JPH10131405A (en) * | 1996-11-06 | 1998-05-19 | Kubota Corp | Flat seam roofing tile |
| CN2318302Y (en) * | 1997-10-23 | 1999-05-12 | 王曙光 | Flexible tile |
| JP2002339524A (en) * | 2001-05-16 | 2002-11-27 | Toho Kogyo Kk | Roof board with lap margin |
| CN101532323A (en) * | 2009-04-01 | 2009-09-16 | 浙江省二建建设集团有限公司 | Method for paving asphalt tile |
| CN202416714U (en) * | 2011-12-15 | 2012-09-05 | 天津市禹神建筑防水材料有限公司 | Fiberglass based asphalt shingle |
| US20130276397A1 (en) * | 2012-04-21 | 2013-10-24 | Margie Chavez | Leak Locating Shingle |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6843163B2 (en) | 2021-03-17 |
| CN111441538B (en) | 2021-11-02 |
| JP2020114965A (en) | 2020-07-30 |
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