JP2004036385A - Structure of waterproofing base layer - Google Patents

Structure of waterproofing base layer Download PDF

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JP2004036385A
JP2004036385A JP2003319628A JP2003319628A JP2004036385A JP 2004036385 A JP2004036385 A JP 2004036385A JP 2003319628 A JP2003319628 A JP 2003319628A JP 2003319628 A JP2003319628 A JP 2003319628A JP 2004036385 A JP2004036385 A JP 2004036385A
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waterproof
waterproof base
base layer
gradient
ridge
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JP4119335B2 (en
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Hideyuki Takayama
高山　英之
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Asahi Kasei Homes Corp
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Asahi Kasei Homes Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of a waterproofing base layer for easily forming the waterproofing base layer parts of a corner ridge and a main ridge, which are formed where two surfaces of the waterproofing base layer having different directions of the pitches meet. <P>SOLUTION: The central part of a roof constitutes a top end of the upstream. Waterproofing base layer surfaces 1 and 2 form declivities in two directions to the girder sides, and the waterproofing base layer surfaces 3 and 4 form declivities in two directions to gable sides, respectively, from the central part of the roof toward the edges of the eaves. The corner ridges 6, 7, 8, and 9 are formed where the base layer surfaces 1 and 3, 2 and 3, 2 and 4, and 1 and 4, meet, respectively. The waterproof base layer parts of these corner ridges are formed by combining and laying a plurality of triangulate pitch plates 12. The main ridge 5 is formed horizontally where the base layer surfaces 1 and 2 meet. The waterproofing base layer part of the main ridge is formed by laying a plurarity of waterproofing base layer members of flat plates. <P>COPYRIGHT: (C)2004,JPO

Description

　この発明は水勾配を有する防水層の防水下地構造に関するものである。 発 明 The present invention relates to a waterproof underlayer structure of a waterproof layer having a water gradient.

　一般に、屋上庭園などとして利用できるようにした建物の屋上を始め、ベランダやバルコニーの床、あるいは洗車場やプールサイドの床には防水層が形成され、また表面に排水や集水のために１／５０〜１／２００程度のきわめて緩い水勾配が付けられている。 In general, a waterproof layer is formed on the roof of a building that can be used as a roof garden, on the floor of a veranda or balcony, or on the floor of a car wash or poolside, and one surface is provided for drainage and water collection. A very gentle water gradient of about / 50 to 1/200 is provided.

　このような屋根や床では、一端を水上側の最上端とし、この最上端側から他端側に傾斜する片流れの水勾配が付けられたり（片流れ形式）、特に面積が広いときは例えば図７と図８に図示するように中央部分を水上側の最上端とし、この中央部分から二方向（切り妻形式）または四方向（寄せ棟形式）に傾斜する水勾配が付けられている。 In such a roof or floor, one end is set as the uppermost end on the water side, and a one-sided water gradient inclined from the uppermost end to the other end (single-flow type) is provided. As shown in FIG. 8, the central portion is the uppermost end on the water side, and a water gradient that is inclined from this central portion in two directions (gable style) or in four directions (bridge style) is provided.

　また、その施工方法としては、例えば図１０に図示するように、水平に構築されたスラブ躯体３０の上に上面が一端側からこれに対向する他端側に傾斜する勾配面ａをなす、例えば図９（ａ）に図示するような勾配板３１を複数、勾配面ａが水上側から水下側へ下り勾配で連続するように、勾配板３１の下に平板３２を敷き込む等して適当に嵩上げしながら敷き詰めて防水下地３３を形成し、この防水下地３３の上にアスファルト防水やシート防水などによる防水層が形成されている。 In addition, as the construction method, for example, as shown in FIG. 10, on the slab body 30 that is horizontally constructed, the upper surface forms a sloped surface a that is inclined from one end to the other end opposite thereto, for example, A plurality of gradient plates 31 as shown in FIG. 9 (a) are laid, and a flat plate 32 is laid under the gradient plate 31 so that the gradient surface a is continuously descended from the upper surface to the lower surface. The waterproof base 33 is formed by laying the waterproof base 33 up, and a waterproof layer such as asphalt waterproof or sheet waterproof is formed on the waterproof base 33.

　しかし、防水下地３３を前述するような片流れ形式や切り妻形式とした場合、例えば図７（ｂ）に図示するように防水下地３３の妻側に段差Ｈができて勾配面の周囲が納まり付かない等の理由から、防水下地３３の妻側部分と桁側部分の先端部分の防水下地はモルタル３４を充填して別に形成していた。 However, when the waterproof base 33 is of the one-sided flow type or the gable type as described above, for example, as shown in FIG. 7B, a step H is formed on the wife side of the waterproof base 33, and the periphery of the slope is settled. For example, the waterproof base at the end of the waterproof base 33 on the end side and the end on the girder side of the waterproof base 33 is formed separately by filling the mortar 34.

　このため、現場におけるモルタル工事が残存し、左官工によるモルタル工事や養生期間をさらに必要とする等の課題があった。 Therefore, there was a problem that the mortar construction on site remained, and the mortar construction by plasterers and the curing period were further required.

　また、図８に図示するような寄せ棟形式の防水下地とした場合には、二つの勾配面が交わることで形成される棟部（稜線部分）３５や谷部（谷線部分）３６には勾配板３１と別に形成した、例えば谷部３６にあっては図９（ｂ）あるいは（ｃ）、また隅棟部３５にあっては図９（ｄ）に図示するような二方向に傾斜する勾配面ａを持つ（稜線部分は丸い形状でもよい）勾配板３７を敷き詰める必要があるため、勾配板の種類が増えて施工が複雑になるだけでなく、勾配板の製作が形状的に面倒でコスト高を免れない等の課題があった。
特開平０４−６００４７号公報 In the case of a waterproof base of a ridge type as shown in FIG. 8, a ridge portion (ridge line portion) 35 and a valley portion (valley line portion) 36 formed by intersection of two slopes are provided. For example, in the valley portion 36, which is formed separately from the gradient plate 31, it is inclined in two directions as shown in FIG. 9B or 9C, and in the corner ridge portion 35 as shown in FIG. Since it is necessary to spread the gradient plate 37 having the gradient surface a (the ridge portion may be a round shape), not only the number of types of the gradient plate increases, but also the construction becomes complicated, and the production of the gradient plate is complicated in shape. There were problems such as unavoidable high costs.
JP-A-04-60047

　しかし、防水下地３３を前述するような片流れ形式や切り妻形式とした場合、例えば図７（ｂ）に図示するように防水下地３３の妻側に段差Ｈができて勾配面の周囲が納まり付かない等の理由から、防水下地３３の妻側部分と桁側部分の先端部分の防水下地はモルタル３４を充填して別に形成していた。 However, when the waterproof base 33 is of the one-sided flow type or the gable type as described above, for example, as shown in FIG. 7B, a step H is formed on the wife side of the waterproof base 33, and the periphery of the slope is settled. For example, the waterproof base at the end of the waterproof base 33 on the end side and the end on the girder side of the waterproof base 33 is formed separately by filling the mortar 34.

　このため、現場におけるモルタル工事が残存し、左官工によるモルタル工事や養生期間をさらに必要とする等の課題があった。 Therefore, there was a problem that the mortar construction on site remained, and the mortar construction by plasterers and the curing period were further required.

　また、図８に図示するような寄せ棟形式の防水下地とした場合には、二つの勾配面が交わることで形成される棟部（稜線部分）３５や谷部（谷線部分）３６には勾配板３１と別に形成した、例えば谷部３６にあっては図９（ｂ）あるいは（ｃ）、また隅棟部３５にあっては図９（ｄ）に図示するような二方向に傾斜する勾配面ａを持つ（稜線部分は丸い形状でもよい）勾配板３７を敷き詰める必要があるため、勾配板の種類が増えて施工が複雑になるだけでなく、勾配板の製作が形状的に面倒でコスト高を免れない等の課題があった。 In the case of a ridge type waterproof base as shown in FIG. 8, the ridge portion (ridge line portion) 35 and the valley portion (valley line portion) 36 formed by the intersection of two slopes are formed. For example, in the valley portion 36, which is formed separately from the gradient plate 31, it is inclined in two directions as shown in FIG. 9B or 9C, and in the corner ridge portion 35 as shown in FIG. Since it is necessary to lay the gradient plate 37 having the gradient surface a (the ridge line portion may be a round shape), not only the number of types of the gradient plate increases but also the construction becomes complicated, but the production of the gradient plate is complicated in shape. There were problems such as unavoidable high costs.

　請求項１記載の防水下地構造は、水勾配を有する防水層の防水下地構造であって、上面が一辺からこれに対向する他辺に向かって下り勾配の勾配面をなす平面正方形の勾配板を、複数敷き詰めて互いに異なる方向に傾斜する防水下地面をそれぞれ形成し、この二つの防水下地面が交わることにより傾斜して形成される防水下地部を、上面が一辺からこれに対向する頂点に向かって下り勾配の勾配面をなす防水下地材と、上面が一頂点からこれに対向する一辺に向かって下り勾配の勾配面をなす防水下地材を複数組み合わせながら敷きつめて形成し、かつ前記二つの防水下地面が交わることにより水平に形成される大棟部の防水下地部を平板からなる防水下地材を複数敷きつめて形成してなることを特徴とするものであり、この場合の二つの防水下地面が交わることにより傾斜して形成される防水下地部は、隅棟部と谷部の防水下地部をいう。 The waterproof underlayer structure according to claim 1 is a waterproof underlayer structure of a waterproof layer having a water gradient, wherein a flat square gradient plate having an upper surface forming a downward gradient surface from one side to the other side opposite thereto is provided. A plurality of the waterproof base surfaces are laid all over to form a waterproof base surface inclined in different directions from each other, and the waterproof base portion formed to be inclined by the intersection of the two waterproof base surfaces is formed such that the upper surface is directed from one side to a vertex opposed thereto. A waterproof base material forming a downward slope surface and a waterproof base material forming an upward slope surface from one vertex to a side opposite to the upper surface from the one vertex are formed by laying down and combining a plurality of waterproof base materials, and the two waterproofs are formed. It is characterized in that the waterproof base of the large ridge formed horizontally by the intersection of the lower ground is formed by laying a plurality of flat waterproof base materials, and in this case two Waterproof base portion which is formed to be inclined by Underwater ground intersect refers corner building portion and the waterproof base of the valley.

　また、上面が一辺からこれに対向する頂点に向かって下り勾配の勾配面をなす防水下地材と、上面が一頂点からこれに対向する一辺に向かって下り勾配の勾配面をなす防水下地材は、上面が一辺からこれに対向する他辺に向かって下り勾配の勾配面をなす平面正方形の勾配板を対角二等分割することにより形成することができる。 In addition, a waterproof base material having an upper surface forming a downwardly sloping surface from one side to a vertex opposed thereto, and a waterproof base material having an upper surface forming a downwardly sloping surface from one vertex to one side opposed thereto are: , Can be formed by diagonally bisecting a flat square gradient plate whose upper surface forms a downward slope from one side to the other side facing the same.

　防水下地材として平面正方形の勾配板を複数敷きつめて互いに異なる方向に傾斜して形成される二つの防水下地面が交わる隅棟部や谷部の防水下地部は、特に上面が一辺からこれに対向する他辺に向かって下り勾配の勾配面をなす平面正方形の勾配板を対角二等分割して形成された、上面が一辺からこれに対向する頂点に向かって下り勾配の勾配面をなす防水下地材と、上面が一頂点からこれに対向する一辺に向かって下り勾配の勾配面をなす防水下地材を複数、隅棟部と谷部の形状に添うようにそれぞれ組み合わせながら設置することにより容易に形成できる。 Waterproof bases in corner ridges and valleys where two waterproof bases are formed by laying a plurality of flat square gradient plates as waterproof base materials and sloping in different directions from each other, especially with the top facing one side Waterproofing, with the upper surface forming a downward slope from one side to the opposite vertex, formed by diagonally dividing a square square gradient plate that forms a downward slope toward the other side Easily installed by combining a plurality of base materials and waterproof base materials whose upper surface forms a sloping surface with a downward slope from one vertex to the opposite side, so as to conform to the shapes of the corner ridges and valleys. Can be formed.

　したがって、隅棟部や谷部の防水下地材として専用のものを特別に製作する必要がなく、大幅なコストダウンが図れる。 Therefore, there is no need to specially fabricate a special waterproof base material for the corner ridges and valleys, and significant cost reductions can be achieved.

　また、防水下地材の種類が少なく、きわめて効率的に防水下地を形成することができるだけでなく、少ない種類の防水下地材を使って図１（ａ）に図示するような寄せ棟形式の防水下地や図４に図示するような谷部を有する寄せ棟形式の防水下地も容易に形成できる。 In addition, the number of types of waterproof base materials is small, so that not only can a waterproof base material be formed extremely efficiently, but also a waterproof type base material as shown in FIG. Also, a waterproof structure of a ridge type having a valley as shown in FIG. 4 can be easily formed.

　また、現場施工を完全乾式とすることができるので、現場における左官工事、養生などが不要となり、工期の大幅な短縮化が可能になる。 Also, since the on-site construction can be completely dry, plastering work and curing at the site are not required, and the construction period can be significantly shortened.

　さらに、隅棟部の防水下地材は、上面が一辺からこれに対向する頂点に向かって下り勾配の勾配面をなす平面三角形状に形成され、また谷部の防水下地材は、上面が一頂点からこれに対向する一辺に向かって下り勾配の勾配面をなす平面三角形状に形成されているので、いずれも上面が一辺からこれに対向する他辺に向かって下り勾配の勾配面をなす平面正方形の勾配板を、対角二等分割して容易に形成できる。また、大棟部を平坦に形成することで、切り使いによる残材を少なくし、かつ現場における切断加工などの施工手間を大幅に省力できる。 Further, the waterproof base material of the corner ridge portion is formed in a planar triangular shape having an upper surface forming a downward slope from one side to the apex facing the same, and the waterproof base material of the valley portion has an upper surface of one vertex. Is formed in a triangular shape that forms a slope with a downward slope from one side to the opposite side, so that in any case, a plane square whose upper surface forms a slope with a downward slope from one side to the other side opposite to this Can be easily formed by diagonally bisecting diagonally. In addition, by forming the large ridge flat, it is possible to reduce residual materials due to cutting and use, and to greatly reduce the labor for construction such as cutting on site.

　図１と図２は、平面矩形状をなす陸屋根の防水下地構造の一例を示し、図において、屋上防水の防水下地として寄せ棟形の防水下地、すなわち屋根の中央部分が水上側の最上端をなし、この中央部分から周囲の軒先に向かって桁側の二方向と妻側の二方向にそれぞれ下り勾配をなす防水下地面１と２、防水下地面３と４がそれぞれ形成されている。 FIGS. 1 and 2 show an example of a waterproof base structure of a flat roof having a flat rectangular roof. In FIG. The waterproof base surfaces 1 and 2 and the waterproof base surfaces 3 and 4 are formed so as to be inclined downward from the central portion in the two directions on the girder side and the two sides on the wife side, respectively, from the central portion toward the eaves around.

　これに伴って、防水下地面１と２とが交わることで形成される稜線部分が大棟部５をなし、防水下地面１と３、防水下地面２と３、防水下地面２と４、そして防水下地面１と４とがそれぞれ交わることで形成される稜線部分がそれぞれ、隅棟部６、隅棟部７、隅棟部８、そして隅棟部９になっている。 Along with this, the ridge portion formed by the intersection of the waterproof base surfaces 1 and 2 forms the large ridge portion 5, the waterproof base surfaces 1 and 3, the waterproof base surfaces 2 and 3, the waterproof base surfaces 2 and 4, The ridges formed by the intersection of the waterproof base surfaces 1 and 4 are the corner ridge 6, the corner ridge 7, the corner ridge 8, and the corner ridge 9, respectively.

　大棟部５は桁行き方向に一定長さ水平に連続し、隅棟部６，７，８および９はそれぞれ、大棟部５の端部から大棟部５の桁行き方向に対して略４５°斜め方向の二方向にそれぞれ連続し、かつ軒先に向かって下り傾斜し、さらにその先端は屋根の軒先まで達している。 The main ridge 5 is horizontally continuous for a certain length in the girder direction, and the corner ridges 6, 7, 8 and 9 are each substantially from the end of the main ridge 5 to the girder direction of the main ridge 5. It is continuous in two directions of 45 ° diagonal direction, descends and slopes toward the eaves, and its tip reaches the eaves of the roof.

　桁側の防水下地面１と２および妻側の防水下地面３と４はともに、防水下地材として、例えば図２（ａ）に図示するような四角勾配板１０と四角平板１１を複数、敷きつめて形成されている。 Both the waterproof base surfaces 1 and 2 on the girder side and the waterproof base surfaces 3 and 4 on the wife side are, for example, a plurality of square gradient plates 10 and square flat plates 11 as shown in FIG. It is formed.

　また、隅棟部６，７，８および９の防水下地部は、防水下地材として、例えば図２（ｂ）に図示するような三角勾配板１２と四角平板１１を複数敷き詰めて形成されている。 The waterproof base portions of the corner ridges 6, 7, 8 and 9 are formed by, for example, laying a plurality of triangular gradient plates 12 and square flat plates 11 as shown in FIG. .

　四角勾配板１０と四角平板１１はともに同じ大きさの平面正方形状に形成され、特に四角勾配板１０の上面には一辺１０ａ側からこれに対向する他辺１０ｂ側に向かって下り勾配の勾配面ａが全面にわたって形成されている。 The square gradient plate 10 and the square flat plate 11 are both formed in the shape of a plane square having the same size. In particular, the upper surface of the square gradient plate 10 has a slope surface having a downward slope from one side 10a toward the other side 10b opposite thereto. a is formed over the entire surface.

　三角勾配板１２は平面三角形状に形成され、三角勾配板１２の上面には一頂点１２ａ側からこれに対向する一辺１２ｂ側に向かって下り勾配の勾配面ａが全面にわたって形成されている。 The triangular gradient plate 12 is formed in a planar triangular shape, and a gradient surface a having a downward gradient is formed on the entire upper surface of the triangular gradient plate 12 from one vertex 12a toward one side 12b opposite thereto.

　なお、三角勾配板１２は例えば図３に図示するように四角勾配板１０を対角線に沿って二等分割する等して形成される。 The triangular gradient plate 12 is formed by, for example, bisecting the square gradient plate 10 along a diagonal line as shown in FIG.

　また、四角勾配板１０、四角平板１１および三角勾配板１２の素材としては特に限定されるものではないが、ポリスチレン、ポリエチレン等の合成樹脂の発泡体、ガラス繊維などを主材とする成形体、あるいは真珠岩などの無機質発泡体などは高い断熱機能を有することから、防水下地の施工と同時に断熱施工も行うことができるので好適である。 Further, the material of the square gradient plate 10, the square flat plate 11, and the triangular gradient plate 12 is not particularly limited, but a foamed material of a synthetic resin such as polystyrene or polyethylene, a molded product mainly including glass fiber, Alternatively, since inorganic foams such as perlite have a high heat-insulating function, heat-insulating construction can be performed simultaneously with the construction of the waterproof base, which is preferable.

　こうして形成された勾配板と平板のうち、四角勾配板１０は、水平に構築された屋上スラブ躯体１４の上に一辺１０ａ側を水上側にして屋根の外周部から中央に向かって順に敷きつめられている。 Among the gradient plates and flat plates thus formed, the square gradient plates 10 are laid on the roof slab frame 14 constructed horizontally in such a manner that one side 10a is on the water side from the outer peripheral portion of the roof toward the center. I have.

　また、各四角勾配板１０の勾配面ａが屋根の中央から軒先に向かって下り勾配で連続するように、四角勾配板１０の下に四角平板１１が必要な枚数だけ敷き込まれることにより、四角勾配板１０が場所に応じて適当に嵩上げされている。こうして、隅棟部６〜９の部分を除いた桁側と妻側の各防水下地面１，２，３および４がそれぞれ形成されている。 Also, the required number of square flat plates 11 are laid under the square gradient plate 10 so that the slope surface a of each square gradient plate 10 is continuously descended from the center of the roof toward the eaves. The gradient plate 10 is appropriately raised according to the location. Thus, the waterproof base surfaces 1, 2, 3, and 4 on the girder side and the wife side except for the corner ridges 6 to 9 are respectively formed.

　隅棟部６，７，８および９の部分には２枚の勾配板１２が、一頂点１２ａを水上側にし、かつ双方の斜辺１２ｃを隅棟の上でそれぞれ突き合わせながら、各隅棟の軒先部分から大棟５の端部に向かって順に敷きつめられている。 In the corner ridge portions 6, 7, 8, and 9, two slope plates 12 are provided, with one vertex 12a facing the water side and the two oblique sides 12c abutting each other on the corner ridge. It is laid in order from the part toward the end of the main building 5.

　また、各三角勾配板１２の勾配面ａが大棟５の端部から各隅棟の軒先部分に向かって下り傾斜で連続するように、三角勾配板１２の下に四角平板１１が必要な枚数だけ敷き込まれることにより、三角勾配板１２が場所に応じて適当に嵩上げされている。こうして、隅棟部６〜９の防水下地部が形成されている。 Also, the required number of square flat plates 11 under the triangular gradient plate 12 is such that the gradient surface a of each triangular gradient plate 12 is continuously inclined downward from the end of the large building 5 toward the eaves of each corner building. By only being laid, the triangular gradient plate 12 is appropriately raised according to the location. Thus, the waterproof base portions of the corner ridge portions 6 to 9 are formed.

　なお、四角平板１１は、単に四角勾配板１０と三角勾配板１２を嵩上げするために敷き込まれるものであるから、形状や大きさは特に限定されるものではない。 The square flat plate 11 is merely laid to raise the square gradient plate 10 and the triangular gradient plate 12, so that the shape and size are not particularly limited.

　こうして形成された桁側と妻側の防水下地面１，２，３および４と隅棟部６〜９の防水下地部の上にアスファルト防水やシート防水などによる防水層が形成されている。 防水 A waterproof layer such as asphalt waterproof or sheet waterproof is formed on the waterproof base surfaces 1, 2, 3 and 4 on the girder side and the wife side thus formed and the waterproof base portions on the corner ridges 6 to 9.

　なお、図１（ｂ）、図７（ｂ）および（ｃ）、および図１０に図示する防水下地は、理解をし易くするために実際の勾配よりも急勾配に図示してある。 Note that the waterproof base shown in FIGS. 1 (b), 7 (b) and (c), and FIG. 10 is steeper than the actual slope for easy understanding.

　図４は、特に陸屋根の平面形状がＬ字形状をなすことから、上述の防水下地面１〜４と同様にして形成された防水下地面１５と１６とが交わることで、屋根の棟部から軒先に向かって下り勾配で連続する溝状の谷部１７を有する場合で、このような谷部１７にあっては、防水下地材として、例えば図５に図示するような三角勾配板１８と四角平板１１を敷きつめて形成されている。 FIG. 4 shows that the waterproof base surfaces 15 and 16 formed in the same manner as the above-described waterproof base surfaces 1 to 4 intersect with each other, since the flat shape of the flat roof forms an L-shape, particularly from the roof ridge. In the case where there is a groove-shaped valley portion 17 that is continuous down the slope toward the eaves, such a valley portion 17 has a triangular gradient plate 18 as shown in FIG. It is formed by laying flat plates 11.

　三角勾配板１８は平面三角形状に形成され、特に上面に一辺１８ａ側からこれに対向する頂点１８ｂに向かって下り勾配の勾配面ａが全面にわたって形成されている。また、三角勾配板１８は例えば勾配板１０を対角線に沿って二等分割する等して形成されている。 The triangular gradient plate 18 is formed in a planar triangular shape. In particular, a gradient surface a with a downward gradient from the side 18a to the apex 18b facing the side 18a is formed on the entire upper surface. The triangular gradient plate 18 is formed by, for example, bisecting the gradient plate 10 along a diagonal line.

　こうして形成された三角勾配板１８は２枚ずつ、谷部１７の部分に一辺１８ａを水上側にし、かつ双方の斜辺１８ｃを谷の底でそれぞれ突き合わせながら、軒先部分から棟部に向かって順に敷き詰められている。 The triangular gradient plates 18 thus formed are laid two by two in order from the eaves portion toward the ridge portion, with one side 18a facing the water above the valley portion 17 and the two oblique sides 18c abutting each other at the bottom of the valley. Have been.

　また、各三角勾配板１８の勾配面ａが谷部１７の軒先部分に向かって下り勾配で連続するように、三角勾配板１８の下に四角平板１１が必要な枚数だけ敷き込まれることにより、三角勾配板１８が場所に応じて適当に嵩上げされている。こうして、谷部１７の防水下地部が形成され、その上にアスファルト防水やシート防水などによる防水層が形成されている。 In addition, the required number of square flat plates 11 are laid under the triangular gradient plates 18 so that the gradient surfaces a of the triangular gradient plates 18 are continuously descended toward the eaves of the valleys 17. The triangular gradient plate 18 is appropriately raised according to the location. Thus, the waterproof base portion of the valley portion 17 is formed, and a waterproof layer such as asphalt waterproofing or sheet waterproofing is formed thereon.

　図６は特に、水平に連続する大棟部５の防水下地部を、特に三角勾配板を使用せず、四角平板をそのまま、または適当な大きさに切り詰めたものを適当に組み合わせながら敷きつめることにより、一定範囲にわたって平坦に形成した例を示したものである。 In particular, FIG. 6 lays down the waterproof base portion of the horizontally continuous large ridge section 5 without particularly using a triangular gradient plate, while assembling a square flat plate as it is or by appropriately cutting it into an appropriate size. This shows an example in which the film is formed flat over a certain range.

　このように形成することで、棟どうし、あるいは棟部と谷部が複雑に交わる部分の防水下地を容易に施工することができ、また防水下地材としての四角板を切断加工したことで発生する残材を極力少なくすることができ、防水下地材の無駄をなくすることができる。 By forming in this way, it is possible to easily construct a waterproof base between ridges or a portion where a ridge and a valley intersect in a complicated manner, and this is caused by cutting a square plate as a waterproof base material. Residual material can be reduced as much as possible, and waste of the waterproof base material can be eliminated.

　なお図では、屋上防水の防水下地構造について説明したが、ベランダやバルコニーの床、あるいは洗車場やプールサイドの防水下地面も同様に構成される。 In the figure, the waterproof underlayer structure of the rooftop waterproofing is described. However, the waterproof underlayer surface of a veranda or a balcony, or a car wash or a poolside is similarly configured.

　この発明は、屋上庭園などとして利用できるようにした陸屋根、ベランダやバルコニーの床、あるいは洗車場やプールサイド等のような排水を必要とする場所の防水工事に利用される。 The present invention is used for waterproofing a place where drainage is required, such as a flat roof, a veranda, a balcony floor, or a car wash or a poolside, which can be used as a roof garden.

寄せ棟形式に形成された屋上防水の防水下地を示し、（ａ）はその平面図、（ｂ）は（ａ）におけるイ−イ線断面図である。FIG. 2A is a plan view of a waterproof underlayer of rooftop waterproof formed in a ridge style, and FIG. 2B is a cross-sectional view taken along the line II-II in FIG. 防水下地材を示し、（ａ）は四角勾配板と四角平板の斜視図、（ｂ）は三角勾配板同士の組合せと四角平板の斜視図である。3A is a perspective view of a square gradient plate and a square plate, and FIG. 3B is a perspective view of a combination of triangle gradient plates and a square plate. 隅棟部に設置される三角勾配板の組み合わせ例を示す斜視図である。It is a perspective view which shows the example of a combination of the triangular gradient board installed in a corner ridge part. 寄せ棟形式に形成された屋上防水の防水下地を示す平面図である。It is a top view which shows the waterproof base of the roof waterproof formed in the ridge type. 谷部に設置される三角勾配板の組み合わせ例を示す斜視図である。It is a perspective view which shows the example of a combination of the triangular gradient board installed in a valley part. 寄せ棟形式に形成され、かつ大棟部が平板からなる防水下地材で形成された屋上防水の防水下地の平面図である。It is a top view of the waterproof base material of the rooftop waterproofing formed in the ridge type, and the large ridge part was formed with the waterproof base material which consists of a flat plate. 切り妻形式にモルタル下地を併用して形成された従来の屋上防水の防水下地を示し、（ａ）はその平面図、（ｂ）はその桁側ロ−ロ線断面図、（ｃ）はその妻側ハ−ハ線断面図である。Shown is a conventional roof waterproof waterproof base formed by using a mortar base in combination with a gable form, wherein (a) is a plan view, (b) is a cross-sectional view of a girder side roll line, and (c) is It is a sectional view taken along the line of the wife's side. 寄せ棟形式に形成された従来の屋上防水の防水下地を示す平面図である。It is a top view which shows the waterproofing base of the conventional roof waterproofing formed in the ridge type. （ａ）は勾配板と平板の一例を示す斜視図、（ｂ），（ｃ）は谷部に設置される勾配板の従来例を示す斜視図、（ｄ）は隅部に設置される勾配板の従来例を示す斜視図である。(A) is a perspective view showing an example of a gradient plate and a flat plate, (b) and (c) are perspective views showing a conventional example of a gradient plate installed in a valley, and (d) is a gradient installed in a corner. It is a perspective view which shows the conventional example of a board. 防水下地構造の従来例を示し、例えば図７（ａ）におけるイ−イ線断面図である。FIG. 8 is a cross-sectional view taken along the line II in FIG.

符号の説明Explanation of reference numerals

　ａ　勾配面
　１　防水下地面
　２　防水下地面
　３　防水下地面
　４　防水下地面
　５　大棟部
　６　隅棟部
　７　隅棟部
　８　隅棟部
　９　隅棟部
１０　四角勾配板（防水下地材）
10ａ　一辺
10ｂ　他辺
１１　四角平板（防水下地材）
１２　三角勾配板（防水下地材）
12ａ　一頂点
12ｂ　一辺
12ｃ　斜辺
１４　スラブ躯体
１５　防水下地面
１６　防水下地面
１７　谷部
１８　三角勾配板（防水下地材）
18ａ　一辺
18ｂ　頂点
18ｃ　斜辺
a Slope surface 1 Waterproof base surface 2 Waterproof base surface 3 Waterproof base surface 4 Waterproof base surface 5 Large ridge 6 Corner ridge 7 Corner ridge 8 Corner ridge 9 Corner ridge 10 Square slope plate (waterproof base material)
10a one side
10b Other side 11 Square plate (waterproof base material)
12 Triangle slope plate (waterproof base material)
12a One vertex
12b one side
12c hypotenuse 14 slab skeleton 15 waterproof base 16 waterproof base 17 valley 18 triangular gradient plate (waterproof base material)
18a one side
18b vertex
18c hypotenuse

Claims (1)

　水勾配を有する防水層の防水下地構造であって、上面が一辺からこれに対向する他辺に向かって下り勾配の勾配面をなす平面正方形の勾配板を、複数敷き詰めて互いに異なる方向に傾斜する防水下地面をそれぞれ形成し、この二つの防水下地面が交わることにより傾斜して形成される防水下地部を、上面が一辺からこれに対向する頂点に向かって下り勾配の勾配面をなす防水下地材と、上面が一頂点からこれに対向する一辺に向かって下り勾配の勾配面をなす防水下地材を複数組み合わせながら敷きつめて形成し、かつ前記二つの防水下地面が交わることにより水平に形成される大棟部の防水下地部を平板からなる防水下地材を複数敷きつめて形成してなることを特徴とする防水下地構造。
A waterproof underlayer structure of a waterproof layer having a water gradient, in which a plurality of flat square gradient plates having an upper surface forming a downward gradient surface from one side to the other side opposite thereto are laid and inclined in different directions. A waterproof undercoat is formed by forming a waterproof undercoat and each of the two waterproof undercoats intersects to form a waterproof undercoat with an upper surface forming a downward slope from one side to a vertex opposed thereto. Material, the upper surface is formed by laying down a combination of a plurality of waterproof base materials having a downward slope from one vertex to one side opposed thereto, and is horizontally formed by the intersection of the two waterproof base surfaces. The waterproof base structure is characterized in that the waterproof base part of the large ridge is formed by laying a plurality of flat waterproof base materials.
JP2003319628A 2003-09-11 2003-09-11 Waterproof base structure Expired - Lifetime JP4119335B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012233393A (en) * 2011-03-08 2012-11-29 Asahi Kasei Homes Co Roof structure
JP2014037689A (en) * 2012-08-13 2014-02-27 Asahi Kasei Homes Co Working method for slope plate
JP2016211275A (en) * 2015-05-12 2016-12-15 ミサワホーム株式会社 Arrangement structure of gutter and construction method of apartment house

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012233393A (en) * 2011-03-08 2012-11-29 Asahi Kasei Homes Co Roof structure
JP2014037689A (en) * 2012-08-13 2014-02-27 Asahi Kasei Homes Co Working method for slope plate
JP2016211275A (en) * 2015-05-12 2016-12-15 ミサワホーム株式会社 Arrangement structure of gutter and construction method of apartment house

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