JP2003129603A - Heat insulation substrate structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute a heat insulation substrate structure by a simple mechanism, even if an incombustible material such as rock wool is used. SOLUTION: A heat insulation substrate layer C is formed on a substrate B. An upper layer heat insulation substrate body A is mounted on the heat insulation substrate layer C. In the upper layer heat insulation substrate body A, heat insulation substrate materials 1 are fixed at prescribed intervals on a surface material 2. A groove part A1 is formed between a heat insulation substrate material 1 and an adjoining heat insulation substrate material 1. The groove part A1 has a width wider than that of at least a supporting material 4 combined with the groove part A1. The surface material 2 is placed on a lower side, the groove part A1 is mounted to be directed in an eaves-ridge direction, and the supporting material 4 is fixed to the substrate B by putting the supporting material 4 into the groove part A1.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、屋根用の断熱下地
材を用いた断熱下地構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating base structure using a heat insulating base material for a roof.

【０００２】[0002]

【従来の技術】近年、屋根材の室内側に通気層を設けて
結露を防いだり、下地上に断熱層を形成して断熱効果を
高めたりすることによって、耐久性のある建物にする工
法が求められている。また、公共物件等には、耐火機能
を重視した断熱下地構造が求められている。そのような
例を、まず、図１２により説明する。図１２の場合は、
不燃材であるロックウールを断熱下地材１として敷き並
べ、断熱下地構造の断熱下地層Ｃとして用いている。こ
れは、岩を高温で溶かして繊維状に漉き込み、均質に成
型加工したものである。そして、図１２の場合には、屋
根材を固定するための支持材４の載置箇所や通気溝とな
る溝部Ｃ１が形成されている。この溝部Ｃ１は、図中の
斜線部をくり抜くことで形成されており、溝部Ｃ１が軒
棟方向になるようにして断熱下地材１を下地Ｂ上に並べ
て、断熱下地層Ｃとなっている。図１３は、断熱下地層
Ｃを形成するために、高さの異なる断熱下地材１・１を
左右方向に交互に並べ、低い箇所を支持材４の載置箇所
や通気溝となる溝部Ｃ１としたものである。2. Description of the Related Art In recent years, there has been proposed a method of constructing a durable building by providing a ventilation layer on the indoor side of a roofing material to prevent dew condensation, or forming a heat insulating layer on the base to enhance the heat insulating effect. It has been demanded. In addition, public property and the like are required to have a heat insulating base structure that emphasizes fire resistance. Such an example will be described first with reference to FIG. In the case of FIG. 12,
Rock wool, which is a non-combustible material, is laid out as the heat insulating base material 1 and used as the heat insulating base layer C of the heat insulating base structure. This is one in which rock is melted at high temperature, fibrous, and uniformly molded. In the case of FIG. 12, a mounting portion of the support material 4 for fixing the roof material and a groove portion C1 serving as a ventilation groove are formed. The groove portion C1 is formed by hollowing out a hatched portion in the drawing, and the heat insulating base material 1 is arranged on the base material B so that the groove portion C1 faces the eaves ridge to form a heat insulating base layer C. In FIG. 13, in order to form the heat insulating underlayer C, the heat insulating underlayers 1 and 1 having different heights are alternately arranged in the left-right direction, and the lower portion is set as the mounting portion of the support material 4 and the groove portion C1 serving as a ventilation groove. It was done.

【０００３】[0003]

【発明が解決しようとする課題】図１２の場合には、支
持材４の載置箇所や通気溝となる溝部Ｃ１を所定間隔で
形成するため、寸法出しをする必要があり、また、実際
には、繊維状のものをかきむしるように削っていくた
め、図中斜線部のようにきれいにくり抜くことはできな
かった。しかも、削る際の粉塵の始末も面倒であった。In the case of FIG. 12, it is necessary to dimension the groove portions C1 serving as the mounting portions of the supporting member 4 and the ventilation grooves at predetermined intervals, and actually, it is necessary to measure the dimensions. Since it cuts off fibrous material like scraping, it could not be cut out cleanly like the shaded area in the figure. Moreover, it was troublesome to dispose of dust when shaving.

【０００４】図１３の場合には、高さの異なる断熱下地
材を交互に並べていくため手間がかかり、しかも、軒棟
方向にまっすぐに並べにくかった。本発明は、これらの
点を解決し、手間をかけずに通気機能を向上させた断熱
下地構造とすることを目的としている。ロックウール等
の不燃材を断熱下地材に用いた場合には、通気機能と耐
火機能とを重視した断熱下地構造を提供することを目的
とする。In the case of FIG. 13, it takes time and labor to arrange heat insulating base materials having different heights alternately, and it is difficult to arrange them straight in the direction of the eaves. An object of the present invention is to solve these problems and to provide a heat insulating base structure having an improved ventilation function without any trouble. When a non-combustible material such as rock wool is used as a heat insulating base material, it is an object of the present invention to provide a heat insulating base structure that emphasizes ventilation and fire resistance.

【０００５】[0005]

【課題を解決するための手段】本発明の断熱下地構造
は、断熱下地層と上層断熱下地体と支持材とによって構
成されている。上位概念となる構成は、上層断熱下地体
は、面材に、断熱下地材が所定間隔で固定されており、
断熱下地材と断熱下地材との間には溝部が形成されてお
り、該溝部は、少なくともそこに組み合わせられる支持
材の幅よりも広い幅で形成されており、下地上に断熱下
地層が形成されており、該断熱下地層の上に、前記上層
断熱下地体と支持材とが組み合わせられるが、上層断熱
下地体は溝部を軒棟方向にして載せられ、支持材は上層
断熱下地体の溝部と組み合わせられる断熱下地構造であ
る。請求項２記載の発明は、上層断熱下地体は、面材
に、断熱下地材が所定間隔で固定されており、断熱下地
材と断熱下地材との間には溝部が形成されており、該溝
部は、少なくともそこに組み合わせられる支持材の幅よ
りも広い幅で形成されており、下地上に断熱下地層が形
成されており、該断熱下地層の上に、前記上層断熱下地
体が面材を下側にして溝部が軒棟方向になるように載せ
られており、該溝部に支持材が組み合わせられて下地に
固定される断熱下地構造である。請求項３記載の発明
は、上層断熱下地体は、面材に、断熱下地材が所定間隔
で固定されており、断熱下地材と断熱下地材との間には
溝部が形成されており、該溝部は、少なくともそこに組
み合わせられる支持材の幅よりも広い幅で形成されてお
り、下地上に断熱下地層が形成されており、該断熱下地
層の上に、支持材が左右に間隔をあけて長さ方向を軒棟
方向にして下地に固定されており、該支持材に、前記上
層断熱下地体がかぶせられるが、面材を上側にして溝部
が組み合わせられる断熱下地構造である。The heat insulating underlayer structure of the present invention comprises a heat insulating underlayer, an upper heat insulating underlayer and a support material. The structure that is a superordinate concept is that the upper heat-insulating base material has the heat-insulating base material fixed to the face material at predetermined intervals,
A groove is formed between the heat insulating base material and the heat insulating base material, and the groove is formed with a width wider than at least the width of the support material combined therewith, and the heat insulating base layer is formed on the base. The upper heat-insulating underlayer and the support material are combined on the heat-insulating underlayer, and the upper heat-insulating underbody is placed with the groove portion facing the eaves, and the support material is the groove portion of the upper heat-insulating underlayer material. It is a heat insulating foundation structure that is combined with. According to a second aspect of the invention, in the upper heat-insulating base material, the heat-insulating base material is fixed to the face material at a predetermined interval, and a groove is formed between the heat-insulating base material, The groove portion is formed with a width wider than at least the width of the support material combined therewith, and the heat insulating underlayer is formed on the underlayer, and the upper heat insulating underlayer is provided with a surface material on the heat insulating underlayer. Is placed so that the groove portion faces the eaves, and a supporting material is combined with the groove portion and fixed to the base. According to a third aspect of the present invention, in the upper heat-insulating base material, the heat-insulating base material is fixed to the face material at a predetermined interval, and a groove is formed between the heat-insulating base material, The groove is formed with a width wider than at least the width of the support material combined therewith, and the heat insulating base layer is formed on the base, and the support material is left and right spaced on the heat insulating base layer. Is fixed to the base with the length direction being the eaves direction, and the support is covered with the upper heat insulating base, but the groove is combined with the face facing upward.

【０００６】[0006]

【実施例】図１から図１１により、本発明の実施例につ
いて説明する。図１及び図２は、本発明の第一実施例の
説明図であり、図３及び図４は第二実施例の説明図であ
り、図５から図７は第三実施例の説明図であり、図８
（ア）から（ウ）は、それぞれ、第一実施例から第三実
施例に用いる支持材の説明図であり、図９は図１に示し
た上層断熱下地体Ａの実施例の説明図であり、図１０は
図１に屋根材を施工した状態を示す説明図であり、図１
１（ア）は上層断熱下地体Ａの他の実施例を示す説明図
であり、（イ）は本発明の断熱下地構造の他の実施例を
示す説明図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 and 2 are explanatory views of a first embodiment of the present invention, FIGS. 3 and 4 are explanatory views of a second embodiment, and FIGS. 5 to 7 are explanatory views of a third embodiment. Yes, Figure 8
(A) to (C) are explanatory views of the support material used in the first to third examples, respectively, and FIG. 9 is an explanatory view of the example of the upper heat-insulating base material A shown in FIG. 1. Yes, FIG. 10 is an explanatory view showing a state in which the roofing material is applied to FIG.
FIG. 1A is an explanatory view showing another embodiment of the upper heat insulating substrate A, and FIG. 1A is an illustration showing another embodiment of the heat insulating substrate structure of the present invention.

【０００７】まず、図１により、本発明の第一実施例に
ついて説明する。ここに示した断熱下地構造は、それを
構成する断熱下地層Ｃと上層断熱下地体Ａの断熱下地材
１とに、ロックウール等の不燃材を用いたものである。
そして、コンクリート等の下地Ｂに、まず、断熱下地材
１を敷き並べて断熱下地層Ｃを形成する。次に、その断
熱下地層Ｃの上に、上層断熱下地体Ａを載せていく。上
層断熱下地体Ａは、シートやボード等の面材２に、断熱
下地材１を所定の間隔で固定したものである。その間隔
は、屋根材を取り付けるための支持材４の固定間隔に合
わせてある。面材２は、断熱下地材１を接着等の方法に
より固定することができればよく、防水性や耐火性を有
していればなおよい。また、下層に敷き並べられた断熱
下地材１を通過する水蒸気を通過させるために、穴のあ
けられたものや、通気可能な材質のものを用いてもよ
い。その面材２に断熱下地材１を固定するが、断熱下地
材１の高さは、支持材４の高さとほぼ同じである。左右
に隣り合う断熱下地材１と断熱下地材１との間には、溝
部Ａ１を１以上形成する。その溝部Ａ１の幅は、少なく
とも、その溝部Ａ１に入れられる支持材４の幅よりも広
い。本実施例の場合には、溝部Ａ１には支持材４の脚部
４２・４２がはまるので、少なくとも脚部４２・４２間
の幅よりも広い幅の溝部Ａ１が形成されている上層断熱
下地体Ａとなっている。本実施例の場合には、支持材４
が入れられる溝部Ａ１の他に、通気のための溝部Ａ１も
形成されている。本実施例のような支持材４の場合に
は、脚部４２と止着部４１と脚部４２とによって形成さ
れる溝が通気溝ともなる。しかし、いっそう通気機能を
向上させるために、支持材４が入れられる溝部Ａ１と溝
部Ａ１との間に、１以上の溝部Ａ１を設けるとよい。First, a first embodiment of the present invention will be described with reference to FIG. The heat insulating underlayer structure shown here uses a non-combustible material such as rock wool for the heat insulating underlayer C and the heat insulating underlayer 1 of the upper heat insulating underlayer A which compose the heat insulating underlayer.
Then, first, the heat insulating base material 1 is laid on the base B of concrete or the like to form the heat insulating base layer C. Next, the upper heat-insulating underlayer A is placed on the heat-insulating underlayer C. The upper heat insulating substrate A is a heat insulating substrate 1 fixed to a face material 2 such as a sheet or a board at a predetermined interval. The interval is adjusted to the fixed interval of the support member 4 for attaching the roof material. The face material 2 only needs to be able to fix the heat insulating base material 1 by a method such as adhesion, and more preferably has water resistance and fire resistance. Moreover, in order to allow the water vapor that passes through the heat insulating base material 1 laid in the lower layer to pass through, a material having a hole or a material that allows ventilation may be used. The heat insulating base material 1 is fixed to the face material 2, and the height of the heat insulating base material 1 is almost the same as the height of the support material 4. One or more groove portions A1 are formed between the heat insulating base materials 1 adjacent to each other on the left and right. The width of the groove A1 is at least wider than the width of the supporting member 4 put in the groove A1. In the case of the present embodiment, the leg portions 42, 42 of the support member 4 are fitted in the groove portion A1, so that the upper layer heat insulating base body in which the groove portion A1 having a width wider than at least the width between the leg portions 42, 42 is formed. It is A. In the case of this embodiment, the support member 4
In addition to the groove portion A1 in which is inserted, a groove portion A1 for ventilation is also formed. In the case of the support member 4 as in this embodiment, the groove formed by the leg portion 42, the fastening portion 41, and the leg portion 42 also serves as a ventilation groove. However, in order to further improve the ventilation function, it is preferable to provide one or more groove portions A1 between the groove portions A1 in which the support material 4 is inserted.

【０００８】図１は、下地Ｂの上に形成された断熱下地
層Ｃの上に、面材２を下側にして上層断熱下地体Ａを載
せていくものである。このとき、溝部Ａ１が軒棟方向に
なるようにして載せる。そして、その溝部Ａ１に、支持
材４を入れる。図１の場合には、すべての溝部Ａ１に支
持材４を入れるのではなく、間隔をあけている。その支
持材４は、図８（ア）にも示した通り、止着部４１と、
その両側を立ち上げた脚部４２・４２とを有する上方に
開口した形状をしており、それぞれの脚部４２・４２を
外側に折り曲げてフランジ４３・４３を形成したもので
ある。続いて、図１０にも示した通り、その支持材４の
止着部４１に止着具３を打ち込んで下地Ｂに固定する。
さらに、フランジ４３に吊子７を止着具３で固定し、そ
の吊子７に縦葺き屋根材５をはめ、隣り合う縦葺き屋根
材５・５にキャップ６をかぶせる。このようにして、屋
根材を施工していく。ここに示したものは縦葺き屋根材
５の施工であるが、支持材４に、横葺き屋根材を固定し
て屋根を成してもよい。本実施例のように、下地Ｂの上
に敷き並べる断熱下地材１を比較的厚めにして断熱下地
層Ｃを形成し、その上に載せる上層断熱下地体Ａの断熱
下地材１と断熱下地材１の間に形成された溝部Ａ１によ
り通気が成されるならば、断熱及び通気に優れた耐久性
のある建築構造を提供することができる。しかも、断熱
下地材１を不燃材にしたならば、公共物件等の耐火機能
を求められる物件にも対応することができる。In FIG. 1, an upper heat insulating base material A is placed on a heat insulating base layer C formed on a base material B with the face material 2 facing downward. At this time, the groove A1 is placed so that it faces the eaves. Then, the support material 4 is put into the groove A1. In the case of FIG. 1, the support members 4 are not inserted in all the groove portions A1, but are spaced apart. As shown in FIG. 8A, the support member 4 includes a fastening portion 41,
It has a shape that is opened upward with leg portions 42, 42 that are raised on both sides, and each leg portion 42, 42 is bent outward to form flanges 43, 43. Subsequently, as also shown in FIG. 10, the fastening member 3 is driven into the fastening portion 41 of the support member 4 and fixed to the base B.
Further, the hanger 7 is fixed to the flange 43 with the fastener 3, the vertically roofing roof material 5 is fitted to the hanger 7, and the cap 6 is put on the adjacent vertically roofing roof materials 5 and 5. In this way, the roof material is constructed. Although what is shown here is the construction of the thatched roof material 5, the roof may be formed by fixing the lateral thatched roof material to the support material 4. As in the present embodiment, the heat insulating base material 1 laid on the base B is made relatively thick to form the heat insulating base layer C, and the heat insulating base material 1 and the heat insulating base material of the upper heat insulating base body A placed on the heat insulating base material C. If ventilation is performed by the groove portions A1 formed between the two, it is possible to provide a durable building structure excellent in heat insulation and ventilation. Moreover, if the heat-insulating base material 1 is made of non-combustible material, it can be applied to public properties and other properties requiring fire resistance.

【０００９】さらに、図２により、図１に示した下層の
断熱下地層Ｃの上に、上層断熱下地体Ａと、支持材４と
を並べ替えて設置した例を説明する。まず、下地Ｂに、
断熱下地材１を敷き並べて断熱下地層Ｃを形成する。次
に、支持材４の長さ方向が軒棟方向になるようにして、
断熱下地層Ｃの上に、左右に間隔をあけて載せ、下地Ｂ
に固定する。両側のフランジ４３に、千鳥状に止着具３
を打ち込むとよい。続いて、その支持材４に、上層断熱
下地体Ａをかぶせる。このとき、面材２が上側になるよ
うにし、上層断熱下地体Ａの断熱下地材１と断熱下地材
１の間に形成された溝部Ａ１を支持材４に組み合わせ
る。そして、面材２の上から止着部４１に屋根材を取り
付けていく。このように、上層断熱下地体Ａは、反転し
て用いることもできる。本実施例の場合には、面材２が
防水性のあるものであれば、上層断熱下地体Ａを施工し
たのちに、養生しなくて済む。Further, referring to FIG. 2, description will be given of an example in which the upper heat-insulating underlayer A and the support material 4 are arranged side by side on the lower heat-insulating underlayer C shown in FIG. First, on the base B,
The heat insulating base material 1 is laid and arranged to form a heat insulating base layer C. Next, make the length direction of the support member 4 to the eaves ridge direction,
Place on the heat-insulating underlayer C with a space left and right, and underlay B
Fixed to. Staggered fasteners 3 on the flanges 43 on both sides
You can type in. Then, the support material 4 is covered with the upper heat insulating base material A. At this time, the face material 2 is placed on the upper side, and the groove portion A1 formed between the heat insulating base material 1 of the upper heat insulating base material A and the heat insulating base material 1 is combined with the support material 4. Then, the roof material is attached to the fastening portion 41 from above the face material 2. In this way, the upper heat-insulating base material A can also be used by being inverted. In the case of the present embodiment, if the face material 2 is waterproof, it is not necessary to cure the upper heat insulating substrate A after the construction.

【００１０】図３により、本発明の第二実施例について
説明する。図１と異なる点のみ説明する。ここに示した
支持材４は、図８（イ）にも示した通り、上面４４と、
その両側を折り下げた脚部４２・脚部４２と、それぞれ
の脚部４２・４２を外側方向に折り曲げた止着部４１・
４１とから成っている。そして、下地Ｂに敷き並べられ
た断熱下地材１から成る断熱下地層Ｃに、図１同様にし
て、上層断熱下地体Ａを載せる。次に、溝部Ａ１支持材
４を入れるが、本実施例の場合には、上面４４と各脚部
４２・４２間の他に、その両脇に、断熱下地材１と止着
部４１と脚部４２とによる溝も形成される。このため、
通気機能を向上させることができる。A second embodiment of the present invention will be described with reference to FIG. Only points different from FIG. 1 will be described. The support member 4 shown here has an upper surface 44, as shown in FIG.
A leg portion 42 having both sides thereof folded down, a leg portion 42, and a fastening portion 41 having the leg portions 42, 42 bent outwardly.
It consists of 41 and. Then, the upper heat-insulating base material A is placed on the heat-insulating base layer C composed of the heat-insulating base material 1 laid on the base B in the same manner as in FIG. 1. Next, the groove A1 support material 4 is put in. In the case of the present embodiment, in addition to the space between the upper surface 44 and the leg portions 42, 42, on both sides thereof, the heat insulating base material 1, the fastening portion 41 and the legs are provided. A groove is also formed by the portion 42. For this reason,
The ventilation function can be improved.

【００１１】図４は、図３の組み合わせを、図１を図２
のように並べ替えたのと同様に、並べ替えたものであ
る。この場合にも、図２のように、下地Ｂに敷き並べら
れた断熱下地材１から成る断熱下地層Ｃの上に、支持材
４を所定間隔で取り付ける。次に、面材２を上側にし
て、上層断熱下地体Ａを支持材４にはめる。このとき、
図３と同様に、左右に隣り合う断熱下地材１・１に、支
持材４の止着部４１・４１の端がそれぞれ当たるように
してかぶせてもよい。あるいは、一方の脚部４２に、上
層断熱下地体Ａの断熱下地材１の一側を当ててはめても
よい。図３及び図４に示した上層断熱下地体Ａの溝部Ａ
１は、図１に示したものとは異なり、そこに組み合わせ
られる支持材４の止着部４１・４１の両側端の幅よりも
広い。尚、図３及び図４の場合には、支持材４の上面４
４に、屋根材を取り付けていく。FIG. 4 shows the combination of FIG. 3 and FIG.
It is sorted in the same way as it was sorted like. Also in this case, as shown in FIG. 2, the support material 4 is attached at a predetermined interval on the heat insulating base layer C formed of the heat insulating base material 1 laid on the base B. Next, with the face material 2 on the upper side, the upper heat-insulating base material A is attached to the support material 4. At this time,
As in the case of FIG. 3, the heat insulating base materials 1 and 1 that are adjacent to each other on the left and right sides may be covered so that the ends of the fastening portions 41 and 41 of the support material 4 are in contact with each other. Alternatively, one side of the heat insulating base material 1 of the upper heat insulating base material A may be applied to the one leg 42. Groove A of the upper heat insulating substrate A shown in FIGS. 3 and 4
1, different from that shown in FIG. 1, is wider than the widths of both side ends of the fastening portions 41, 41 of the support member 4 combined therewith. In the case of FIGS. 3 and 4, the upper surface 4 of the support member 4
Attach roofing material to 4.

【００１２】続いて、図５及び図６により、本発明の第
三実施例について説明する。図１及び図２と異なる点の
み説明する。ここに示した支持材４は、図８（ウ）にも
示した通り、止着部４１が形成された上面４４と、その
両側を折り下げた脚部４２・脚部４２と、それぞれの脚
部４２・４２を内側方向に折り曲げたフランジ４３・４
３とから成っている。図５は、下地Ｂに敷き並べられた
断熱下地材１から成る断熱下地層Ｃに、図１同様にして
上層断熱下地体Ａを載せたものである。次に、溝部Ａ１
に支持材４を入れるが、本実施例の場合には、上面４４
をくぼませることで止着部４１を形成している。このた
め、そこに止着具３を打ち込んで下地Ｂに固定する際
に、止着具３の頭が突出することがない。Next, a third embodiment of the present invention will be described with reference to FIGS. Only points different from FIGS. 1 and 2 will be described. As shown in FIG. 8C, the supporting member 4 shown here includes an upper surface 44 on which the fastening portions 41 are formed, leg portions 42 and leg portions 42 with both sides thereof folded down, and the respective legs. Flange 43.4 with parts 42 and 42 bent inward
It consists of three and three. FIG. 5 shows an upper heat-insulating underlayer A placed on a heat-insulating underlayer C composed of the heat-insulating underlayer material 1 laid on the underlayer B in the same manner as in FIG. Next, the groove A1
The support member 4 is placed in the upper surface 44 in the case of this embodiment.
The fastening portion 41 is formed by recessing. Therefore, when the fastener 3 is driven therein and fixed to the base B, the head of the fastener 3 does not project.

【００１３】図６は、図５の組み合わせを、図１を図２
に並べ替えたのと同様に、並べ替えたものである。この
場合にも、下地Ｂに敷き並べられた断熱下地材１から成
る断熱下地層Ｃの上に、図２同様にして支持材４を所定
間隔で取り付ける。次に、上層断熱下地体Ａを支持材４
にかぶせるが、面材２を上側にして、上層断熱下地体Ａ
の溝部Ａ１を支持材４にはめる。図５及び図６に示した
実施例の場合には、上層断熱下地体Ａに、支持材４用の
溝部Ａ１のみが所定間隔で形成されている。このため、
軒棟方向の通気は、支持材４の内側に形成される空間に
よって成される。図７は、図５の変形例である。ここに
示した上層断熱下地体Ａは、断熱下地材１と断熱下地材
１との間の溝部Ａ１を、支持材４の幅よりもいっそう広
く形成してある。このため、通気溝を広くすることがで
きる。施工は、図７に示した通り、支持材４を、上層断
熱下地体Ａの断熱下地材１の一側に当てて、一定の間隔
になるようにすればよい。図５から図７の場合にも、屋
根材は、支持材４の上面４４に取り付ける。FIG. 6 shows the combination of FIG. 5 and FIG.
It is sorted in the same way as it was sorted into. Also in this case, the support material 4 is attached at a predetermined interval on the heat insulating base layer C formed of the heat insulating base material 1 laid on the base B in the same manner as in FIG. Next, the upper heat insulating substrate A is attached to the support 4
Cover, but with the face material 2 on the upper side, the upper heat-insulating substrate A
The groove portion A1 is fitted into the support member 4. In the case of the embodiment shown in FIGS. 5 and 6, only the groove portions A1 for the support material 4 are formed in the upper heat insulating base A at predetermined intervals. For this reason,
The ventilation in the eaves ridge direction is performed by the space formed inside the support member 4. FIG. 7 is a modification of FIG. In the upper heat-insulating base material A shown here, the groove portion A1 between the heat-insulating base material 1 and the heat-insulating base material 1 is formed wider than the width of the support material 4. Therefore, the ventilation groove can be widened. For the construction, as shown in FIG. 7, the support material 4 may be applied to one side of the heat insulating base material 1 of the upper heat insulating base material A so as to have a constant interval. Also in the case of FIGS. 5 to 7, the roofing material is attached to the upper surface 44 of the support material 4.

【００１４】図９は、図１に示した上層断熱下地体Ａの
実施例を示す説明図である。これは、面材２を、両端の
断熱下地材１・１よりも延出させておき、そこを、すで
に施工されている上層断熱下地体Ａの断熱下地材１の端
部に当てるようにして、面材２を重ねて施工していくも
のである。このように、施工や雨仕舞い、運搬状況など
を考慮して、面材２と断熱下地材１とを組み合わせて固
定して上層断熱下地体Ａを構成するとよい。たとえば、
シート状の面材２にして巻いたり畳んだりしておき、現
場で広げてもよい。また、面材２を上側にして置いたと
きに、支持材４において、屋根材を固定するための止着
具３を打ち込む箇所がわかりやすいように、面材２に目
印を付けておいてもよい。FIG. 9 is an explanatory view showing an embodiment of the upper heat insulating base material A shown in FIG. In this, the face material 2 is made to extend beyond the heat insulating base materials 1.1 at both ends, and the surface material 2 is applied to the end portion of the heat insulating base material 1 of the upper heat insulating base material A which has already been constructed. The surface material 2 is piled up and constructed. In this way, in consideration of construction, rain-collection, transportation conditions, etc., it is preferable that the face material 2 and the heat insulating base material 1 are combined and fixed to form the upper heat insulating base material A. For example,
The sheet-shaped face material 2 may be rolled or folded and unfolded on site. In addition, when the face material 2 is placed on the upper side, the face material 2 may be marked so that it is easy to see the place where the fastener 3 for fixing the roof material is driven in the support material 4. .

【００１５】図１１は、他の実施例を示す説明図であ
る。まず、（ア）に基づいて説明するが、これは上層断
熱下地体Ａの他の実施例を示す説明図である。これは、
面材２に、所定間隔で断熱下地材１を固定し、さらに、
その上から、防水被覆材８をかぶせたものである。この
他、上層断熱下地体Ａの断熱下地材１をフェノール樹脂
発泡体や他の材質のものにすることもできる。また、面
材２を二層にして、防水シートと穴のあいた板状体との
組み合わせにするなど、さまざまな実施例が考えられ
る。（イ）は本発明の断熱下地構造の他の実施例を示す
説明図であり、下層の断熱下地材１を敷き並べて断熱下
地層Ｃを形成したのち、上層断熱下地体Ａを載せる前
に、アスファルトルーフィングなどの防水紙や、透湿防
水シート等の下葺き材９を敷いた例である。FIG. 11 is an explanatory view showing another embodiment. First, description will be given based on (A), which is an explanatory view showing another embodiment of the upper heat insulating base A. this is,
The heat insulating base material 1 is fixed to the face material 2 at predetermined intervals, and further,
The waterproof coating material 8 is covered on top of it. In addition, the heat insulating base material 1 of the upper heat insulating base material A may be made of a phenol resin foam or other material. Further, various examples are conceivable, such as a case where the face material 2 has two layers and a combination of a waterproof sheet and a plate-shaped body having holes is used. (A) is an explanatory view showing another embodiment of the heat insulating underlayer structure of the present invention, and after forming the heat insulating underlayer C by laying down the heat insulating underlayer material 1 of the lower layer, before placing the upper heat insulating underlayer A, This is an example in which waterproof paper such as asphalt roofing or a underlaying material 9 such as a moisture-permeable waterproof sheet is laid.

【００１６】これまで述べた通り、本発明の場合には、
断熱下地層Ｃを形成したのちに、上層断熱下地体Ａを組
み合わせることで、特に、溝部を形成しにくかったロッ
クウール等の不燃材を用いて、通気機能と耐火機能を重
視した断熱下地構造を容易に提供することができる。上
層断熱下地体Ａの組み合わせ方は、断熱下地層Ｃに、面
材２を下側にして載せられた上層断熱下地体Ａの溝部Ａ
１に、支持材４を落とし込むようにして組み合わせる方
法がある。また、断熱下地層Ｃに、所定間隔で支持材４
を固定し、その上から、反転させた上層断熱下地体Ａの
溝部Ａ１をかぶせる方法もある。このように、現場に応
じて、適宜施工できる。上層断熱下地体Ａに溝部Ａ１を
形成したことで、その溝部Ａ１に、屋根材を固定するた
めの支持材４を組み合わせることができるし、溝部Ａ１
を軒棟方向にして断熱下地層Ｃに載せることによって、
屋根材に近い箇所に通気溝を形成し、軒側から取り入れ
た空気を棟側へ通気させることもできる。As described above, in the case of the present invention,
After forming the heat-insulating underlayer C, by combining the upper heat-insulating underlayer A, a heat-insulating underlayer structure that emphasizes the ventilation function and the fireproof function is formed by using a non-combustible material such as rock wool which is difficult to form the groove. Can be easily provided. The combination method of the upper heat-insulating base material A is such that the groove portion A of the upper heat-insulating base material A placed on the heat-insulating base layer C with the face material 2 facing downward.
There is a method of combining the support members 4 so that the support member 4 is dropped. In addition, the support material 4 is provided on the heat insulating base layer C at predetermined intervals.
There is also a method in which the groove portion A1 of the inverted upper layer heat-insulating base material A is covered from above by fixing. In this way, the construction can be appropriately performed depending on the site. By forming the groove portion A1 in the upper heat-insulating base material A, the support material 4 for fixing the roof material can be combined with the groove portion A1, and the groove portion A1
By placing it on the heat-insulating base layer C with the eaves facing the eaves,
Ventilation grooves can be formed near the roof material to allow air taken in from the eaves to ventilate to the ridge.

【００１７】[0017]

【発明の効果】これまで述べた通り、従来は、支持材載
置箇所や通気溝となる溝部を所定間隔で形成するため、
寸法出しをする必要があり、また、実際には、繊維状の
ものをかきむしるように削っていくため、きれいにくり
抜くことはできなかった。しかも、削る際の粉塵の始末
も面倒であった。しかし、本発明によれば、断熱下地層
の上に上層断熱下地体を組み合わせるが、その上層断熱
下地体は、面材に所定間隔で断熱下地材を固定すること
で、容易に製作することができる。As described above, according to the related art, since the groove portions which become the support material mounting portion and the ventilation groove are formed at the predetermined intervals,
It was necessary to size it out, and in reality, the fibrous material was scraped off so that it could not be cut out cleanly. Moreover, it was troublesome to dispose of dust when shaving. However, according to the present invention, although the upper heat insulating underlayer is combined on the heat insulating underlayer, the upper heat insulating underlayer can be easily manufactured by fixing the heat insulating underlayer to the face material at a predetermined interval. it can.

【００１８】さらに従来は、高さの異なる断熱下地材を
交互に並べていくため手間がかかり、しかも、軒棟方向
にまっすぐに並べにくかったが、本発明によれば、断熱
下地層の上に、上層断熱下地体を溝部を軒棟方向にして
並べていくことで、手間をかけずに施工することができ
る。Further, conventionally, it was troublesome to arrange heat-insulating base materials having different heights alternately, and it was difficult to arrange them straight in the direction of the eaves. However, according to the present invention, By arranging the upper heat-insulating underlayers with the grooves facing the eaves, it is possible to construct without any trouble.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の第一実施例の説明図である。FIG. 1 is an explanatory diagram of a first embodiment of the present invention.

【図２】本発明の第一実施例の説明図である。FIG. 2 is an explanatory diagram of the first embodiment of the present invention.

【図３】本発明の第二実施例の説明図である。FIG. 3 is an explanatory diagram of a second embodiment of the present invention.

【図４】本発明の第二実施例の説明図である。FIG. 4 is an explanatory diagram of a second embodiment of the present invention.

【図５】本発明の第三実施例の説明図である。FIG. 5 is an explanatory diagram of a third embodiment of the present invention.

【図６】本発明の第三実施例の説明図である。FIG. 6 is an explanatory diagram of a third embodiment of the present invention.

【図７】本発明の第三実施例の説明図である。FIG. 7 is an explanatory diagram of a third embodiment of the present invention.

【図８】（ア）から（ウ）は本発明に係る支持材の実施
例の説明図である。8A to 8C are explanatory views of an embodiment of the support material according to the present invention.

【図９】図１に示した上層断熱下地体Ａの実施例の説明
図である。9 is an explanatory diagram of an example of the upper heat-insulating base material A shown in FIG.

【図１０】図１に屋根材を施工した状態を示す説明図で
ある。FIG. 10 is an explanatory view showing a state where the roofing material is installed in FIG. 1.

【図１１】（ア）は上層断熱下地体Ａの他の実施例を示
す説明図であり、（イ）は本発明の断熱下地構造の他の
実施例を示す説明図である。FIG. 11A is an explanatory diagram showing another embodiment of the upper heat insulating substrate A, and FIG. 11A is an explanatory diagram showing another embodiment of the heat insulating substrate structure of the present invention.

【図１２】従来技術を示す説明図である。FIG. 12 is an explanatory diagram showing a conventional technique.

【図１３】従来技術を示す説明図である。FIG. 13 is an explanatory diagram showing a conventional technique.

【符号の説明】 Ａ 上層断熱下地体 Ａ１ 溝部 Ｂ 下地 Ｃ 断熱下地層 Ｃ１ 溝部 １ 断熱下地材 ２ 面材 ３ 止着具 ４ 支持材 ４１ 止着部 ４２ 脚部 ４３ フランジ ４４ 上面 ５ 縦葺き屋根材 ６ キャップ ７ 吊子 ８ 防水被覆材 ９ 下葺き材[Explanation of symbols] A upper heat-insulating substrate A1 groove B ground C heat insulation underlayer C1 groove 1 Insulating base material 2 face materials 3 fasteners 4 Support materials 41 Fastening part 42 legs 43 flange 44 upper surface 5 vertical roofing materials 6 caps 7 suspension 8 waterproof coating 9 thatching material

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 上層断熱下地体は、面材に、断熱下地材
が所定間隔で固定されており、断熱下地材と断熱下地材
との間には溝部が形成されており、該溝部は、少なくと
もそこに組み合わせられる支持材の幅よりも広い幅で形
成されており、下地上に断熱下地層が形成されており、
該断熱下地層の上に、前記上層断熱下地体と支持材とが
組み合わせられるが、上層断熱下地体は溝部を軒棟方向
にして載せられ、支持材は上層断熱下地体の溝部と組み
合わせられる断熱下地構造。1. The upper heat-insulating base material has a heat-insulating base material fixed to a face material at predetermined intervals, and a groove portion is formed between the heat-insulating base material and the heat-insulating base material. It is formed with a width wider than at least the width of the support material combined therewith, and a heat insulating base layer is formed on the base,
On the heat insulating underlayer, the upper heat insulating underlayer and the supporting material are combined, and the upper heat insulating underlayer is placed with the groove portion facing the eaves, and the supporting material is combined with the groove portion of the upper heat insulating underlayer. Base structure. 【請求項２】 上層断熱下地体は、面材に、断熱下地材
が所定間隔で固定されており、断熱下地材と断熱下地材
との間には溝部が形成されており、該溝部は、少なくと
もそこに組み合わせられる支持材の幅よりも広い幅で形
成されており、下地上に断熱下地層が形成されており、
該断熱下地層の上に、前記上層断熱下地体が面材を下側
にして溝部が軒棟方向になるように載せられており、該
溝部に支持材が組み合わせられて下地に固定される断熱
下地構造。2. The upper heat-insulating substrate has a heat-insulating substrate fixed to a face material at predetermined intervals, and a groove is formed between the heat-insulating substrate and the heat-insulating substrate. It is formed with a width wider than at least the width of the support material combined therewith, and a heat insulating base layer is formed on the base,
The upper heat-insulating underlayer is placed on the heat-insulating underlayer with the face material facing downward so that the groove portion is oriented toward the eaves, and the support material is combined with the groove portion to be fixed to the underlayer. Base structure. 【請求項３】 上層断熱下地体の面材を上側にした場合
上層断熱下地体は、面材に、断熱下地材が所定間隔で固
定されており、断熱下地材と断熱下地材との間には溝部
が形成されており、該溝部は、少なくともそこに組み合
わせられる支持材の幅よりも広い幅で形成されており、
下地上に断熱下地層が形成されており、該断熱下地層の
上に、支持材が左右に間隔をあけて長さ方向を軒棟方向
にして下地に固定されており、該支持材に前記上層断熱
下地体がかぶせられるが、面材を上側にして溝部が組み
合わせられる断熱下地構造。3. When the face material of the upper heat-insulating base material is on the upper side, the heat-insulating base material is fixed to the face material at a predetermined interval, and the heat-insulating base material is fixed between the heat-insulating base material and the heat-insulating base material. Is formed with a groove portion, and the groove portion is formed with a width wider than at least the width of the support material combined therewith,
A heat-insulating underlayer is formed on the lower ground, and a support material is fixed on the heat-insulating underlayer with a space left and right in the lengthwise direction toward the eaves. An upper layer insulation base material is covered, but a heat insulation foundation structure in which the groove is combined with the face material on the upper side.