JP7026545B2 - Horizontally-roofed exterior structure and its construction method - Google Patents

Description

In the present invention, when constructing a horizontal roofing exterior structure, it is not always necessary to continuously lay the heat insulating material and the horizontal roofing exterior material, and the horizontal roofing exterior does not hinder even if it rains during the construction. Regarding the horizontal roofing exterior structure that can construct the structure and its construction method .

A structure in which a heat insulating material is arranged on the back surface side of a horizontal roof made by laying various horizontal roofing materials to form a heat insulating layer is widely known. The following method is known as a method for constructing such a horizontal roof structure.
First, as a first method, there is a construction method as in Patent Document 1, in which a heat insulating material is attached or fitted to the back surface of a horizontal roof, and the roofing material and the heat insulating material are integrated with each other.
Further, as a second method, there is a construction method in which a heat insulating material is sewn on the back surface side of the roofing material while being constructed.
Further, as a third method, a construction method in which a horizontal roof is constructed from above with a heat insulating material is also known.

Japanese Unexamined Patent Publication No. 2008-38425

However, the first method shown in Patent Document 1 has a problem that it is difficult to perform processing such as cutting and bending at the roof end portion.
Further, in the second method, the heat insulating material is not fixed until the roofing material is fixed, and there is a risk that the heat insulating material may be displaced or scattered due to strong wind or the like.
Further, in the third method, after fixing the heat insulating material, it is necessary to further fix the roofing material with a hanger or a screw, so that there is a problem that construction is troublesome.

Therefore, in the present invention, when constructing the horizontal roofing exterior structure, it is not always necessary to continuously construct the laying of the heat insulating material and the horizontal roofing exterior material, and even if there is rainfall in the middle of the construction, there is no problem. The purpose is to propose a horizontal-roofed exterior structure that can construct a roofed exterior structure and a construction method thereof.

The present invention has been proposed in view of the above, and is a horizontal roofing exterior structure in which a plurality of heat insulating materials are laid without gaps on the surface of the base and a horizontal roofing exterior material is laid on the outside of the heat insulating material. The heat insulating material is impermeable with a protrusion at the lower end of the water whose surface layer portion extends downward, and the horizontal roofing exterior material is a fixing piece along the water insulating material on the water upper side of the face plate portion. A water-up molded part having a portion, a horizontal groove opened on the water-side side, a fitting part fitted to the protrusion of the heat insulating material, and a water-side molded part on the water-side side of the face plate part, folded back to the back side. An insert piece that extends to the upper side of the water and engages with the lateral groove (of the side-roofed exterior material adjacent to the underwater side), to the outside of the fitting portion (of the side-roofed exterior material adjacent to the water side). It relates to a horizontal roofing exterior structure characterized by having a underwater molded portion provided with a polymerization portion to be polymerized.
The surface layer portion refers to an upper portion in the thickness direction at the lower end of water.

Further, in the present invention, as a method of constructing the horizontal roof structure, a plurality of impermeable heat insulating materials having a protrusion at the lower end of the water where the surface layer portion extends to the underwater side are laid along the surface of the base. A first step of forming a heat insulating layer without gaps, and a fixed piece portion located on the water upper side of the face plate portion and a fixed piece portion located on the water lower side of the heat insulating layer formed in the first step. A water-up surface molded portion having a horizontal groove that opens to the underwater side, and a horizontal roofing exterior material that is located on the underwater side of the face plate portion and is folded back to the back surface side and extended to the water side (adjacent to the underwater side). ) The laying of the horizontal roofing exterior material comprises a second step of laying the horizontal roofing exterior material having the underwater side molded portion provided with the insertion piece that can be engaged with the horizontal groove in order from the underwater side. At that time, the water upper molded portion is fitted to the protruding portion of the heat insulating material, and the underwater molded portion is further polymerized on the outside thereof to fix the fixed piece portion along the heat insulating material. It also proposes a construction method for the characteristic horizontal roofing exterior structure.

The horizontal roofing exterior structure of the present invention has the advantage that it is not affected by the weather conditions at the site because waterproofness is ensured at this stage because a non-permeable heat insulating material is laid without gaps to form a heat insulating layer. There is. In addition, an exterior surface on which a horizontal-roofed exterior material is laid is formed on the outside of the formed heat insulating layer, and the exterior surface is also waterproof, so that the heat insulating layer and the exterior surface are double waterproof. ..
Further, in the horizontal roof structure of the present invention, since the protrusion provided on the heat insulating material serves as a connection portion with the horizontal roofing exterior material, the heat insulating material and the horizontal roofing exterior material in contact with the heat insulating material can be physically and stably attached. It also has the advantage of having a highly integrated horizontal roofing exterior structure.

Further, in the method of constructing the horizontal roofing exterior material of the present invention, the first step of forming the heat insulating layer and the second step of laying the horizontal roofing exterior material are not necessarily continuously performed, for example, on different days. It is also possible to construct by dividing.

(A) A perspective view showing a heat insulating layer (after finishing the first step) of the horizontal roofing exterior structure of the first embodiment of the present invention, (b) partially laying the horizontal roofing exterior material on the outside of the heat insulating layer. It is a perspective view which shows the state (in the middle of a 2nd step). (A) A side sectional view showing a heat insulating layer (after finishing the first step) of the horizontal roofing exterior structure of the first embodiment, (b) a state in which the horizontal roofing exterior material is partially laid on the outside of the heat insulating layer. It is a side sectional view showing (in the middle of the second step). (A) It is a side view which shows the horizontal roofing exterior material used in 1st Example, (b) is a side view which shows the heat insulating material used in 1st Example. It is a perspective view which shows another aspect (second aspect) of the heat insulating material which can be used for the horizontal roofing exterior structure of this invention. (A) A perspective view showing a state in which the heat insulating material of yet another aspect (third aspect) that can be used for the horizontal roofing exterior structure of the present invention is connected in the flow direction, (b) a part of the connection portion in the flow direction. It is a plan view which shows, (c) is a side view of this heat insulating material. (A) A side sectional view showing a horizontal roofing exterior structure using the heat insulating material of the third aspect, (b) a side view showing a state in which the third horizontal roofing exterior material is attached from the underwater side, (c) attachment. A side view showing the state of being in a state, (d) a perspective view showing the main part thereof, and (e) a side sectional view showing a state in which the fixing tool is driven from the fixing piece portion of the horizontal roofing exterior material to the fixing convex portion of the heat insulating material. be. (A) A side sectional view showing an example in which a horizontal-roofed exterior structure using the heat insulating material of the third aspect is applied to the eaves, (b) a side view showing a state in which the heat insulating material to be arranged on the eaves is processed, (c). It is a side view which shows the horizontal roofing exterior material used, and (d) is a side view which shows the eaves arabesque used. (A) A perspective view showing a state in which a joint waste plate is arranged on the heat insulating material of the third aspect, (b) a perspective view showing a joint waste plate used, and (c) a horizontal roof on one side of the arranged joint waste plate. It is a perspective view which shows the state which arranged the exterior material. (A) A perspective view showing a state in which the side-roofed exterior material on one side is tilted to face the arranged side-roofed exterior material, (b) the side-roofed exterior material on one side and the other side-roofed exterior material. It is a plan view which shows the situation which connects by rotating | (A) A side sectional view showing another aspect of the fitting portion between the protruding portion of the heat insulating material and the fitting portion of the side-roofed exterior material, which is added to the right by enlarging the main part, and (b) enlarging the main part to the right. It is a side sectional view showing still another aspect added.

In the horizontal roofing exterior structure of the present invention, a plurality of heat insulating materials are laid without gaps on the surface of the base, and the horizontal roofing exterior material is laid on the outside of the heat insulating material, and the heat insulating material is the lower end of water. The surface layer portion is impermeable to a water-permeable portion having a protruding portion extending to the underwater side, and the horizontal-roofed exterior material has a fixed piece portion along the water-insulating material on the water upper side of the face plate portion and the underwater side thereof. In addition, a horizontal groove that opens on the underwater side, a water upper molded portion having a fitting portion that fits into the protruding portion of the heat insulating material, and a water side of the face plate portion that are folded back to the back surface side and extended to the water upper side. It is characterized by having an insertion piece that can be engaged with the lateral groove, and a underwater molded portion having a superposed portion to be polymerized on the outside of the fitting portion.

The heat insulating material used for the horizontal roofing exterior structure of the present invention is impermeable with a protrusion at the lower end of the water where the surface layer portion extends downward, and specifically, a foam-based heat insulating material. It is preferable to use a material, particularly a material having some elasticity, for example, a single layer or a laminate of synthetic resin such as expanded polystyrene and expanded polyethylene. This impermeable, foam-based heat insulating material is a material in which air bubble portions are independently and randomly present, so that the impermeable property is always ensured even if processing such as cutting is performed, which is desirable. ..
The protruding portion is a surface layer portion at the lower end of the water, that is, a portion where the upper portion in the thickness direction at the lower end of the water extends downward, and a water upper molded portion (fitting portion) of the horizontal roofing exterior material is fitted. It acts as a fitting receiving part to be made to. Further, since this protruding portion extends to the lower side of the water, a space is formed below the protruding portion, which becomes a space for arranging the horizontal groove of the horizontal roofing exterior material described later. The shape of the protruding portion is not particularly limited, and for example, the protruding portion may have a shape substantially the same as that of the fitting portion, and may be elastically deformed and fitted in a compressed manner.

As described above, this heat insulating material is laid on the surface of the base without a plurality of gaps, and as a structure for forming a highly waterproof heat insulating layer, the heat insulating materials adjacent to each other in the flow direction are interleaved with each other. It is desirable that they are connected in a shape. That is, it is desirable that the protruding portion at the lower end of the water also serves as a phase-like upper polymerized portion. Further, a lower polymerized portion connected to the protruding portion (upper polymerized portion) is provided at the upper end of the water of the heat insulating material, and the lower polymerized portion projects upward as in the illustrated embodiment described later. It is desirable to have a water-returning convex portion or a fixing convex portion that projects upward and comes into contact with the back surface of the laterally-roofed exterior material (protruding portion). The water return protrusions may be provided continuously in the length direction, and the fixing protrusions may be provided at appropriate intervals in the length direction.
The means for laying and fixing this heat insulating material on the surface of the base is not particularly limited, but since it is a heat insulating material generally formed wider in the left-right (horizontal) direction than in the flow direction, for example, 2 in the left-right direction. It is desirable to fix the screws at more than one place.
Further, since the upper surface of the fixing convex portion in the lower polymerization portion comes into contact with the back surface of the protruding portion of the heat insulating material on the water upper side, as shown in the illustrated embodiment (FIG. 6) described later, the horizontal roofing exterior material. It is also suitable as a part for driving a fixture from the fixing piece of. As described above, in this embodiment, the fixture can be stably driven from the fixing piece portion to the fixing convex portion, and not only the fixing of the horizontal roofing exterior material is fixed to the base surface, but also the heat insulating material adjacent to each other in the flow direction. It also plays the role of connecting (connecting) each other.

Further, the surface of the heat insulating material may be substantially flat, may have a substantially linear groove formed as in the illustrated embodiment (FIG. 4; second aspect) described later, or may be formed. As in other illustrated examples (FIGS. 5 to 9; the third aspect) described later, a formation interval (gap) provided with a large number of convex portions may be used as a groove. The groove is a drainage groove for draining dew condensation water or the like before or after laying the horizontal roofing exterior material to the underwater side without staying on the heat insulating material, and is not limited to the flow direction. No, especially the phased part (side edge) may be "diagonal" facing inward (preventing water from wrapping around the side edge).
In addition, a large number of island-shaped portions in the third aspect may be provided in a plurality of rows in the flow direction and the left-right (horizontal) direction, for example, as in the illustrated embodiment described later. Further, the island-shaped portion may be formed in the shape of a head of a thick arrow as in the illustrated embodiment described later, and is not particularly limited as long as it does not retain dew condensation water or the like, and there are a plurality of types. (Two types in the illustrated embodiment described later) may be used. Since the upper surface (top surface) of this island-shaped portion is close to the back surface (or the lining material attached to the back surface) of the face plate portion of the horizontal roofing exterior material, the face plate portion bends when a positive load is applied. It plays a role of preventing deformation of the face plate portion when it comes into contact with (supporting).

Further, forming the island-shaped portions in a plurality of rows in the flow direction and the left-right direction as in the third aspect described above can also be used to display the position where the fixture or the like is driven during the construction. For example, as described above, since this heat insulating material is formed wider in the left-right (horizontal) direction than the flow direction, the position of fixing the screw for fixing the heat insulating material itself to the base surface and the fixing of the horizontal roofing exterior material. It is desirable that the position of the fixture to be used is specified so that it does not become a non-uniform position for each heat insulating material. In the illustrated embodiment described later, triangular marks (dents) and circular marks (dents) are formed, but the builder (worker) can fix each screw or fix it at the position shown in the construction guideline. It is possible to evenly attach the heat insulating material and the horizontal roofing exterior material by driving the tools.

Further, a joint convex portion slightly higher than the height dimension of the island-shaped portion in the third aspect is provided between the rows in the left-right direction of the island-shaped portion as in the illustrated embodiment described later. You may do it. When connecting the left and right sides of the horizontal-roofed exterior material, a joint scrap plate is arranged on the back side of the joint scrap plate, and the joint protrusion is provided so that the arrangement interval matches the left and right width of the joint waste plate. .. Since the convex portion for the joint is formed slightly higher than the height dimension of the island-shaped portion, the joint scrap plate is arranged so as to cover the island-shaped portion, and the left and right end edges thereof are the convex portion for the joint. It can be locked to the joint, and the joint scrap plate does not shift when connecting the horizontal roofing exterior material. In other words, with an arrangement interval that matches the left and right width of the joint scrap plate so that the left and right end edges of the joint waste plate are locked to the joint convex portion (the joint waste plate is fitted between the joint protrusions). The convex portion for the joint is provided so as to be.

Further, the back surface of the heat insulating material may be flat as well as the front surface, or a space (gap) may be provided by forming protrusions, grooves, or the like. The formed space (gap) enables air to flow to and from the base material. By locating the protrusions of this heat insulating material on the water bottom side (eave side) from the water return convex portion of the lower heat insulating material, the "water" flowing down on the heat insulating material flows down on the lower heat insulating material. Prevents wraparound to the back side.

A plurality of the heat insulating materials are laid along the surface of the base to form a heat insulating layer without gaps. For example, in the illustrated embodiment of the third aspect, the heat insulating materials adjacent to each other in the flow direction are connected in a staggered manner. In addition, the heat insulating materials that are adjacent to each other in the left-right direction are laid in a butt-like manner. It is desirable to do it.

As described above, the horizontal roofing exterior material used in the horizontal roofing exterior structure of the present invention has a fixed piece portion along the heat insulating material (protruding portion) on the water upper side of the face plate portion, and underwater on the water surface side thereof. A lateral groove that opens on the side, a water-upper molded portion having a fitting portion that fits into the protruding portion of the heat insulating material, and a water-side molded portion of the face plate portion that is folded back to the back surface side and extends to the water-up side to engage with the lateral groove. It has a insertable piece that can be fitted, and a water-underside molded portion having a polymerization portion to be polymerized on the outside of the fitting portion.
The material and shape of such a horizontal roofing exterior material are not particularly limited, and are typically surface decorative steel sheets, laminated steel sheets, plated steel sheets, stainless steel sheets, and aluminum having a size of approximately 0.4 to 1.6 mm. A known metal material such as an alloy plate, a titanium alloy plate, or a copper plate, which is formed into a predetermined shape by roll molding, extrusion molding, or other means can be appropriately used. Further, the back surface of the newly installed exterior material may be provided with a backing material such as polyethylene foam or glass wool sheet, if necessary, for reasons of dew condensation prevention, soundproofing, and fire prevention measures.

The face plate portion may have a substantially flat shape, and the shape thereof is not particularly specified.
A side edge portion for a joint composed of a convex portion for connection and a concave portion is formed on the left-right end edge of the face plate portion, and the convex portion for connection is formed at the connection portion of the horizontally-roofed exterior material adjacent to each other in the left-right direction. The portion and the recess are abutted and connected so as to mesh with each other. The connecting convex portion is a claw-shaped piece that extends stepwise from the edge of the face plate portion toward the back surface side and protrudes outward, and the forming interval of the claw-shaped piece corresponds to the concave portion. do. Then, one of the connecting convex portions is abutted against the other concave portion, and one claw-shaped piece is connected along the back surface side of the other face plate portion.
Further, the fixing piece portion is provided on the water upper side (end) of the face plate portion as described above, and is fixed along the heat insulating material (protruding portion) by using a fixing tool such as a screw. However, the specific configuration thereof is not particularly limited, but it is often in the shape of a horizontal piece provided at the upper end of water as in the illustrated embodiment described later.

As described above, the water upper molded portion is a portion provided with a lateral groove located on the water side of the fixed piece portion and opened by the water side, and a fitting portion fitted to the protruding portion of the heat insulating material.
The lateral groove is a portion for engaging the insertion piece provided in the underwater molding portion, and the specific configuration thereof is not particularly limited, but the lateral groove is formed in a laterally folded piece shape as in the illustrated embodiment described later. You may.
The fitting portion is a portion to be fitted to the protruding portion (fitting receiving portion) of the heat insulating material, and the specific configuration thereof is not particularly limited, and is substantially the same as the protruding portion as described above. The shape may be formed so that the protruding portions are fitted in close contact with each other, but the length of the lateral grooves is formed by forming these lateral grooves and the fitting portions so as to be vertically adjacent to each other as in the illustrated embodiment described later. The vertical dimension and the length dimension of the fitting portion may be formed substantially equal to each other.

The fitting portion is a portion to be fitted to the protruding portion (fitting receiving portion) of the heat insulating material as described above, but the underwater molded portion (polymerizing portion) of the horizontal roofing exterior material is polymerized. It also plays the role of the polymerized part.

As described above, the underwater molded portion is polymerized on the underwater side of the face plate portion, a plug piece that is folded back to the back surface side and extends to the upper side of the water, and can be engaged with the lateral groove, and is polymerized on the outside of the fitting portion. It is a part provided with a polymerization part to be allowed to be formed.
The insertion piece is a portion where the lower end of the water of the face plate portion is folded back to the back surface side and extends to the upper side of the water so as to be engaged with the lateral groove, and the specific configuration thereof is not particularly limited, but will be described later. It may be formed in a horizontal piece shape as shown in the illustrated embodiment. For the purpose of preventing detachment from the arranged state, it is desirable to form the molding angle smaller than the arranged state in advance so that elasticity acts in the inserted state.
The polymerized portion is a portion to be polymerized on the outside of the fitting portion (polymerized portion), and the specific configuration thereof is not particularly limited. It is desirable that elastic engagement (elastic fitting) is achieved by forming the insert pieces adjacent to each other in the upper and lower directions.
It is desirable that the left-right edge of the underwater molded portion is formed so that one is fitted to the other. In that case, when connecting (joint) the horizontal roofing exterior materials adjacent to each other in the left-right direction, the fitting portion of the underwater molded portion is fitted with one of the horizontal roofing exterior materials as shown in FIG. 9 (b) described later. Can be used as a shaft for rotating.

Then, in order to lay the horizontal roofing exterior material on the heat insulating layer formed by laying the heat insulating material without gaps, the fitting portion is fitted into the protruding portion formed in the heat insulating material that extends downward to the water side. Arrange so that they match. Further, as described above, a lateral groove can be arranged in the space below the fitting portion. In this state, a fixing tool such as a screw may be driven into the fixing piece to fix the fixing piece, so that the horizontal roofing exterior material can be stably attached.

Further, in order to connect the horizontal roofing exterior material in the flow direction, the insertion piece (of the water surface molding part) is inserted into the horizontal groove (of the water side molding part) with respect to the already fixed waterside side roofing exterior material. It is engaged so as to be inserted, and the face plate portion (near the water-side molded portion) is laid in a polymerized manner on the fixed piece portion (on the water-up side molded portion).
Therefore, the fixing tool such as a screw driven into the fixing piece is covered by the face plate part of the horizontal roofing exterior material on the water side, so that the fixing tool does not become a place where rainwater enters, and the exterior surface having waterproofness is provided. It is formed.

As described above, the horizontal-roofed exterior structure of the present invention only uses the heat insulating material having the above-mentioned structure, the horizontal-roofed exterior material having the above-mentioned structure, and the fixture, and is easily waterproof without the need for a hanger or the like. It is possible to construct an exterior structure that is excellent in quality and highly integrated.

The horizontal roofing exterior structure can be constructed by repeating the following first and second steps in order.
First, as a first step, a plurality of impermeable heat insulating materials having a protruding portion whose surface layer portion extends downward to the water bottom are laid along the surface of the base to form a heat insulating layer without gaps.
Next, as a second step, the horizontal roofing exterior material is laid in order from the underwater side on the outside of the heat insulating layer formed in the first step.
When laying the horizontal roofing exterior material in the second step, the water upper molded portion is fitted to the protruding portion of the heat insulating material, and the underwater molded portion is further polymerized on the outer side thereof to heat the heat insulating material. Fix the fixed piece along the material.

After the completion of the first step, a heat insulating layer for ensuring waterproofness is formed, so that there is an advantage that the construction is not affected by the weather conditions at the site. Therefore, the first step of forming the heat insulating layer and the second step of laying the horizontal roofing exterior material are not necessarily continuously performed, and it is possible to perform the construction separately on different days, for example.
Then, an exterior surface on which a horizontal-roofed exterior material is laid is formed on the outside of the formed heat insulating layer, and the exterior surface is also waterproof, so that the heat insulating layer and the exterior surface are double waterproof. ..

In the horizontal roof structure of the first embodiment of the present invention shown in FIGS. 1 (a) and 1 (b) and FIGS. 2 (a) and 2 (b), a plurality of heat insulating materials are provided on the surface of the base 4 arranged in an inclined manner. 2 is laid without a gap, and a horizontal roofing exterior material 1 is laid on the outside of the heat insulating material 2, and only the heat insulating material 2 is laid in FIGS. 1 (a) and 2 (a). 1 (b) and 2 (b) show a state in which the horizontal roofing exterior material 1 is arranged in order from the underwater side on the outside thereof.

The heat insulating material 2 is a non-permeable expanded polystyrene having a protruding portion 22 having a surface layer portion extending downward from the water at the lower end of the water.
As shown in FIG. 3B, the heat insulating material 2 of the first embodiment is formed so that the main body portion 21 is gradually thinned from the underwater side (left side of the drawing) to the upper side of the water (right side of the drawing), and the water thereof. A protruding portion (upper polymerization portion) 22 is formed in which the surface layer portion at the lower end extends.

Further, a lower polymerized portion 23 that is polymerized with the protruding portion (upper polymerized portion) 22 is formed at the upper end of the water of the heat insulating material 2, and a water-returning convex portion 231 that protrudes upward is formed at the end edge thereof. Have. In the figure, reference numeral 220 indicates a space formed below the protrusion 22, and 2b indicates a fixture for fixing the heat insulating material 2.

The horizontal roofing exterior material 1 has a fixed piece portion 14 along the heat insulating material 2 on the water upper side of the face plate portion 11, a horizontal groove 131 opened on the water lower side thereof, and a protruding portion of the heat insulating material 2. A water-up forming portion 13 having a fitting portion 132 to be fitted to 22 and an insertion piece 121 that can be engaged with the lateral groove 131 by folding back to the back surface side and extending to the water upper side on the water-side side of the face plate portion 11. The underwater molding portion 12 is provided with a polymerization portion 122 to be polymerized on the outside of the fitting portion 132.
As shown in FIG. 3A, the horizontal roofing exterior material 1 of the first embodiment has a fixing piece portion 14 along the heat insulating material 2 at the upper end of water (right end in the drawing) of a substantially flat face plate portion 11. , A metal molded plate having a water-up molded portion 13 formed on the underwater side (right side in the drawing) and a underwater molding portion 12 on the underwater side (left side in the drawing) of the face plate portion 11.

Further, the face plate portion 11 and the fixed piece portion 14 of the horizontal roofing exterior material 1 are substantially flat, the horizontal groove 131 is a laterally folded piece shape, and the fitting portion 132 is formed so as to be adjacent to the horizontal groove 131 in the vertical direction. There is. Further, the insertion piece 121 is formed so that the tip thereof is bent into a bent shape and the inserted state is stably held. Elastically fits on the outside.

Further, briefly explaining the base 4, a board-shaped heat insulating material 4 such as wood wool cement is laid on the upper surface side of the structural material 3 arranged in an inclined shape, and the waterproof sheet material 4b is laid on the surface side thereof. Is laid, and the outer wall material (nose cover) 5 and the eaves storage material (eave tip Karakusa) 6 are attached to the eaves edge. Although the description is omitted in FIGS. 1 (a) and 1 (b), the eaves gutter 7 may be attached to the tip of the eaves as shown in FIGS. 2 (a) and 2 (b). The eaves filling material (eave tip Karakusa) 6 used here will be described later in FIG. 7, but the outer wall material 5 is a vertical wall surface that hides the nose, and the eaves gutter 7 is the back surface of the drainage channel 71. The attachment portion 72 provided on the side is fixed to the fascia 5.

The procedure for constructing the horizontal roof structure of the first embodiment will be described below.
First, as a first step, as shown in FIGS. 1 (a) and 2 (a), a non-permeable heat insulating material having the above-mentioned configuration, which comprises a protruding portion 22 having a surface layer portion extending downward to the water bottom at the lower end of the water. A plurality of 2 are laid along the surface of the base 4 to form a heat insulating layer (heat insulating waterproof layer) without gaps.
The first step is not particularly limited in the construction direction, but the projecting portion 22 that also serves as the upper polymerized portion on the water side is arranged above and the lower polymerized portion 23 on the water side is arranged below and connected. do. In the formed polymerized layer, as described above, the main body 21 is formed so as to gradually become thinner from the water surface side to the water surface side, but the upper surface portion thereof is formed from the water surface side to the water surface side as shown in the figure. Since it is inclined, even if it rains, it can flow down to the bottom of the water. Moreover, since the water-returning convex portion 231 is provided at the tip of the lower polymerized portion 23 as described above, it is possible to prevent water from entering from the polymerized connecting portion. Since each heat insulating material 2 is fixed to the base 4 by the fixing tool 2b, a heat insulating layer is formed in which the heat insulating material 2 does not come off or scatter even if a gust of wind or the like occurs.

Next, as a second step, as shown in FIGS. 1 (b) and 2 (b), the horizontal roofing exterior material 1 is laid in order from the underwater side, but the protrusion formed on the heat insulating material 2 as described above. The fitting portion 132 formed on the upper side of the water is arranged in the portion 22 so as to be fitted, and the lateral groove 131 is arranged in the lower space 220 of the protruding portion 22. In this state, since the fixing tool 1b is driven into the fixing piece portion 14 along the heat insulating material 2 to fix it, the fixing work can be stably performed, and the horizontal roofing exterior material 1 can be stably attached.

Further, in order to connect the horizontal roofing exterior materials 1 and 1 to each other in the flow direction at that time, the insertion piece 121 formed on the waterside side is inserted into the horizontal groove with respect to the already fixed waterside side roofing exterior material 1. The face plate portion 11 is laid in a polymerized manner on the fixing piece portion 14 into which the fixture 1b is driven as described above, while engaging the face plate portion 11 so as to be inserted into the 131.
In this way, since the face plate portion 11 of the horizontal roofing exterior material 1 on the water side covers the fixing tool 1b such as a screw driven into the fixing piece portion 14, the fixing tool 1b does not become a place where rainwater enters. A waterproof exterior surface is formed. Although not shown in FIG. 2B, there is no problem even if the fixture 1b is driven as shown in FIG. 1B.

In addition, instead of the heat insulating material 2, the heat insulating material 2'which is an example of the second aspect shown in FIG. 4 may be used.
This heat insulating material 2'has drainage grooves 211 and 212 formed on the surface side, and more specifically, a drainage groove 211 extending long from the upper side of the water to the lower side of the water and a short drainage groove 211 extending from the lower side of the water to the lower end of the water. Drainage grooves 212 are alternately provided from the side ends. These drainage ditches 211 and 212 can discharge dew condensation water or the like before or after laying the horizontal roofing exterior material 1 to the underwater side without staying on the heat insulating material 2 ' .

Further, instead of the heat insulating material 2, the heat insulating material 8 which is an example of the third aspect shown in FIG. 5 may be used.
In this heat insulating material 8, the formation interval (gap) in which a large number of island-shaped portions 811 are provided on the surface side of the main body portion 81 is a drainage groove 812, and the island-shaped portion 811 is a thick arrow in a plan view. Two types formed in the shape of the head (the wide island-shaped part is referred to as 811a and the slightly narrow island-shaped part is referred to as 811b in the figure) in three rows in the flow direction and in the length direction (left-right direction). A total of 15 rows are formed in. It should be noted that one row in the flow direction formed by the wide island-shaped portion 811a and one row formed by the slightly narrow convex upper portion 811b are alternately formed, and the center of the 15 rows in the left-right direction. The 7 rows including the above are the rows of the wide island-shaped portion 811a, and the 8 rows including the left and right side edges are the rows of the slightly narrow island-shaped portion 811b. Further, the drainage groove 812 is formed in a mesh shape because it is also formed between the wide island-shaped portions 811a and 811a and between the slightly wide island-shaped portions 811b and 811b.
Further, between the rows of the island-shaped portions 811 in the left-right direction, that is, between the rows of the wide island-shaped portions 811a and the rows of the slightly narrow island-shaped portions 811b, from the height dimension of the island-shaped portions 811. The joint convex portions 813 formed slightly higher are formed in three rows in the flow direction, and a total of 16 rows of joint convex portions 813 are formed in the length direction. The convex portion 813 for the joint is formed in an elliptical shape in a plan view.
Further, the lower polymerization portion 83 of the main body portion 81 of the heat insulating material 8 on the water upper side (upper side in the drawing) is formed continuously in the left-right direction, but extends to the water lower side (lower side in the drawing). The protruding portions (upper polymerization portion) 82 are formed as protruding pieces on the underwater side of 15 rows of island-shaped portions 811 in the left-right direction. Of the protrusions 82, a triangular mark (dent) 84x and a circular mark (dent) 84y are formed on the water upper side of the protruding piece located on the water side of the row of the wide island-shaped portions 811a. ing.

The lower overlapping portion 83 is formed so that the water return convex portion 831 projecting upward is continuous along the upper end of the water, and on the lower side of the water, on the upper side of the row of the wide island-shaped portions 811a, the lower overlapping portion 83 is formed. A push button-shaped convex portion 832, which is a fixing convex portion that abuts on the back surface of the protruding portion 82 of the heat insulating material 8 on the water side in a state of projecting upward and arranged, is formed, and a row of slightly narrow island-shaped portions 811b is formed. On the upper side of the water, an L-shaped convex portion 833 is formed, which is an arrangement convex portion that projects upward and can receive the water upper end 92 of the joint waste plate 9. The role of the push button-shaped convex portion 832 will be described later with reference to FIGS. 6 and 7, and the role of the L-shaped convex portion 833 will be described with reference to FIG. 8 to be described later.

FIG. 6 (a) shows a horizontal-roofed exterior material using the heat insulating material 8, and FIG. 6 (b) shows a horizontal-roofed exterior material (1 ") at the third stage from the underwater side at the construction stage. 6 (c) and 6 (d) show the mounted state, and FIGS. 6 (c) and 6 (d) show the mounted state.
Further, FIG. 7A is an example in which the horizontal roofing exterior structure using the heat insulating material 8 is applied to the eaves, and the horizontal roofing exterior material 1 "in these horizontal roofing structures is shown in FIG. 7C. As shown, the face plate portion 11 "is not substantially flat but substantially U-shaped, and the backing material 1c is attached to the back surface side. In addition, each part (underwater) depending on the configuration of the heat insulating material 8. The shapes of the side molding portion 12 ", the water upper molding portion 13", and the fixed piece portion 14 ") are different from each other.

In these horizontal roofing exterior structures, the horizontal roofing exterior material 1 "is attached so as to slide from the underwater side to the upper side of the water, as in the second step in the first embodiment described above. As shown in 6 (b), the fitting portion 132 "is arranged so as to be fitted to the protruding portion 82 formed in the heat insulating material 8, and the lateral groove 131 is arranged in the lower space 820 of the protruding portion 82. In this state, the fixing tool 1b is driven into the fixing piece portion 14 "along with the heat insulating material 8 to fix the fixing tool 1b. As shown, the fixture 1b is driven in substantially perpendicular to the base 4, and the fixture 1b also penetrates the phased connection portion of the heat insulating material 8 on the back surface side. Specifically, the water upper side. The fixture 1b penetrates the portion where the protrusion 82 of the heat insulating material 8 and the push button-shaped convex portion 832 of the heat insulating material 8 on the underwater side come into contact with each other without a gap. The insertion piece 121 formed on the underwater side is engaged with the material 1 "so as to be inserted into the lateral groove 131, and the face plate portion 11" is inserted into the fixing piece portion 14 "in which the fixture 1b is driven as described above. The state shown in FIGS. 6 (c) and 6 (d) can be formed, and finally the horizontal-roofed exterior structure shown in FIG. 6 (a) can be constructed. Note that 8b in FIG. 6A shows a fixing tool for the heat insulating material 8, and the fixing tool (1b) for the horizontal-roofed exterior material 1 "is omitted in the figure.
In this way, the push button-shaped convex portion 832 is combined with the protruding portion 82 of the heat insulating material 8 adjacent to the upper side of the water so as to form a phased connection portion without a gap, and the fixture 1b is driven into the portion, so that it is stable. Fixture 1b can be driven in. Further, since the position where the fixture 1b is driven can be easily visually recognized by the triangular mark (dent) 84x formed in the row of the wide island-shaped portions 811a, proper construction can be easily performed.

As described above, FIG. 7A is an example in which the horizontal roofing exterior structure is applied to the eaves, and the base 4 is arranged on the upper surface side of the structural material 3A, and the outer wall material (fascia) 5 is arranged at the eaves end. Is fixed, but the heat insulating material 8'arranged on the eaves on the base 4 has the protruding portion 82 removed as shown in FIG. 7 (b), and FIG. 7 (c) is attached to the protruding portion 82. ) Is attached to the eaves siding material (eaves siding) 6.
In this eaves storage material 6, the upper piece 611 of the substantially U-shaped mounting portion 61 attached to the eaves tip of the base 4 extends long to the upper side of the water and runs along the upper surface of the base 4, but the heat insulating material 8 The fixture (indicated by the alternate long and short dash line in the figure) 2b for fixing the'is reaching the upper piece 611. Further, the eaves housing material 6 is substantially T in which the underwater molding portion 12 of the horizontal roofing exterior material 1 "at the eaves front is engaged with the upper end of the vertical piece 62 raised on the eaves side of the mounting portion 61. A substantially L-shaped decorative portion 64 extending from the middle of the vertical piece 62 toward the eaves side and further downward is provided.

FIG. 8A shows a state in which the joint scrap plate 9 is arranged at a predetermined position (a row of slightly narrow island-shaped portions 811b) on the heat insulating material 8 and is formed on the joint convex portion 813 of the heat insulating material 8. A joint scrap plate 9 is attached so as to lock the left and right edge edges. As described above, the heat insulating material 8 is provided with a plurality of convex portions 813 for joints, and the left and right arrangement intervals of the convex portions 813 for joints are substantially the same as the left and right dimensions of the joint waste plate 9 in advance. Therefore, when the joint scrap plate 9 is arranged, it can be stably arranged so as to fit between the left and right joint convex portions 815 and 813.
As shown in FIG. 8B, the joint waste plate 9 has a plurality of water return portions 911 and 911 formed on the left and right sides of the substantially flat plate-shaped face plate portion 91 in the flow direction, and a ridge for position confirmation is substantially in the center. The shaped portion 912 is formed. Further, the upper end 92 of the water is bent toward the front surface side, and the lower end 93 of the water is bent toward the back surface side.
The joint scrap plate 9 is arranged so as to fit between the joint protrusions 815 and 913 from the water bottom side to the water top side of the heat insulating material 8, and the water upper end 92 thereof is arranged in FIG. 8 (a). ), As shown in an enlarged manner, the heat insulating material 8 is arranged so as to be in contact with the L-shaped convex portion 833.
In this way, the L-shaped convex portion 833 is combined so as to be in contact with the water upper end of the joint waste plate 9, and the side end portion of the horizontal roofing exterior material 1 "is arranged in this portion as shown in FIG. 8 (c). It is to be set up.

The edges of the horizontal roofing exterior material 1 "in the flow direction, that is, the configurations of the upper side and the lower side of the water have already been described, but the edges in the left-right direction are as shown in FIG. 8 (c). A joint side edge portion 15 having a claw-shaped connecting convex portion 15a and a concave portion 15b was adopted. In the figure, 12a "is fitted to an adjacent underwater molding portion 12" and rotated. It is a fitting part for making a shaft.
The horizontal-roofed exterior material 1 "may be arranged at an appropriate position by visually adjusting the position so that the side edge thereof is along the raised portion 912 of the joint waste plate 9. ..

FIG. 9A shows a state in which the side-roofed exterior material 1 "on one side (left side of the drawing) and the side-roofed exterior material 1" on the other side (right side of the drawing) are tilted. , The underwater molding portion 12 "is arranged so as to be fitted to the fitting portion 12a".
FIG. 9B shows a situation in which the horizontal exterior material 1 "on one side (left side of the drawing) is rotated with respect to the horizontal exterior material 1" on the other side (right side of the drawing). The state in which the joint connection portion 16 of the right side-roofed exterior material 1 "is connected to the joint side edge portion 15 of the horizontal-roofed exterior material 1" is shown. That is, the claw-shaped connecting convex portion 15a of the joint side edge portion 15 is arranged on the back surface side of the concave portion 16b of the connecting side edge portion 16, and the claw-shaped connecting convex portion 16a of the joint side edge portion 16 is provided. , It is arranged on the back surface side of the recess 15b of the connection side edge portion 15, and the joint connection structure shown in FIG. 9C can be formed.

By using the heat insulating material 8 in this way, not only a heat insulating layer without gaps (heat insulating waterproof layer) is formed, but also various constructions accompanying the construction of the horizontal roofing exterior material 1 "arranged on the upper surface thereof. For example, the joint scrap plate 9 can be easily attached and the horizontal-roofed exterior materials 1 "and 1" on the upper surface thereof can be easily and at appropriate positions.

10 (a) and 10 (b) show that the materials and the like are exactly the same as those of the side-roofed exterior material 1 and the heat insulating material 2, but the fitting portion (132d) and the protruding portion (22c, 22c') thereof. Shows an example in which the shapes of the lumbers are different.
For example, it has already been described that the protruding portion formed on the heat insulating material may have a shape substantially similar to that of the fitting portion formed on the horizontal roofing exterior material, and may be elastically deformed and fitted in a compressive manner. And the above-mentioned aspects, but the present invention is not limited to these, and the heat insulating materials 2C and 2C'and the horizontal roofing exterior material 1D in FIGS. 10A and 10B may be adopted. ..
Since the protruding portions 22c and 22c'in this embodiment are formed shorter than the fitting portion 132d, the tips of the protruding portions 22c and 22c'are fitted to the protruding portions 22c and 22c'. A space portion 133 is formed in the space. In other words, as shown in the above embodiment, a protruding portion may be formed so as to fill the fitting portion, or a space portion is formed at the tip of the protruding portion as in the embodiment. A protrusion having a short protrusion length (horizontal dimension) may be formed.

As described above, the heat insulating materials 2C and 2C'shown in FIGS. 10 (a) and 10 (b) are common in that the protruding portions 22c and 22c'are short in lateral dimension with respect to the fitting portion 132d. The protruding portion 22c'of 10 (b) is formed so that the fitting portion 132d of the horizontal roofing exterior material 1D can be easily fitted by forming a tapered surface (inclined surface) on the back surface of the tip end.

1,1 "Horizontal exterior material 11,11" Face plate part 12 Underwater molding part 121 Insertion piece 122 Polymerization part 13 Water side molding part 131 Horizontal groove 132,132d Fitting part 14.14 "Fixing piece part 1b Fixture 1c Lining material 2,2', 2C, 2C', 8 Insulation material 21,81 Main body part 211,212 Drainage groove 22,22c, 22c', 82 Protruding part (upper polymerization part)
220 Lower space 23,83 Lower polymerization part 231 Water return convex part 2b, 8b Fixture 3 Structural material 4 Insulation material (base)
5 Outer wall material 6 House storage material 7 House gutter 9 Joint scrap plate

Claims (2)

It is a horizontal-roofed exterior structure in which a plurality of heat insulating materials are laid on the surface of the base without gaps, and a horizontal-roofed exterior material is laid on the outside of the heat-insulating material.
The heat insulating material is impermeable and has a protrusion at the lower end of the water whose surface layer portion extends downward.
The horizontal roofing exterior material is fitted with a fixed piece portion along the water insulating material on the water upper side of the face plate portion, a horizontal groove opened on the water lower side thereof, and a protruding portion of the heat insulating material. A water upper molded part having a portion, an insertion piece that is folded back to the back surface side and extends to the water upper side on the water lower side of the face plate portion, and an insert piece that can be engaged with the lateral groove, and a polymerization portion that is polymerized on the outside of the fitting portion. A horizontal roofing exterior structure characterized by having a underwater molded portion and. The first step of forming a heat insulating layer without gaps by laying a plurality of impermeable heat insulating materials having a protrusion at the lower end of the water so that the surface layer portion extends to the lower side of the water along the surface of the base.
On the outside of the heat insulating layer formed in the first step, a fixed piece portion located on the water upper side of the face plate portion and a water upper molded portion having a lateral groove located on the water lower side thereof and open on the water lower side. A horizontal roofing exterior material having a underwater molded portion located on the underwater side of the face plate portion, folded back to the back surface side and extended to the upper side of the water, and provided with an insert piece that can be engaged with the lateral groove. The second step of laying in order from the underwater side,
Consists of
When laying the horizontal roofing exterior material, the water upper molded portion is fitted to the protruding portion of the heat insulating material, and the underwater molded portion is further polymerized on the outside thereof to be fixed along the heat insulating material. A method of constructing a horizontal-roofed exterior structure characterized by fixing one part.

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