JP5254873B2 - Roof panel and breathable roof base structure using the roof panel - Google Patents
Roof panel and breathable roof base structure using the roof panel Download PDFInfo
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- JP5254873B2 JP5254873B2 JP2009115100A JP2009115100A JP5254873B2 JP 5254873 B2 JP5254873 B2 JP 5254873B2 JP 2009115100 A JP2009115100 A JP 2009115100A JP 2009115100 A JP2009115100 A JP 2009115100A JP 5254873 B2 JP5254873 B2 JP 5254873B2
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- 239000000463 material Substances 0.000 claims description 49
- 238000003780 insertion Methods 0.000 claims description 46
- 230000037431 insertion Effects 0.000 claims description 46
- 238000009413 insulation Methods 0.000 claims description 26
- 238000009423 ventilation Methods 0.000 claims description 19
- 239000002984 plastic foam Substances 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 description 16
- 239000006260 foam Substances 0.000 description 6
- 229920006327 polystyrene foam Polymers 0.000 description 5
- 229920002943 EPDM rubber Polymers 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 description 1
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Building Environments (AREA)
Description
本発明は屋根パネルおよび該屋根パネルを使用した通気性屋根下地構造に関するものである。 The present invention relates to a roof panel and a breathable roof base structure using the roof panel.
従来の屋根パネル(131)としては、図１７に示すように、プラスチック発泡体からなる断熱主板(133A)の複数枚を垂木巾の間隙を介して配置し、該断熱主板(133A)相互をプラスチック発泡体からなる細長の断熱連結板(133B)を上側から貼着することによって連結し、該連結部分にあたる垂木巾の間隙を垂木嵌合部(135) とした断熱材(133) の複数枚を野地面材(132) の下面に該断熱連結板(133B)を介して接着し、該野地面材(132) と該断熱主板(133A)との間において、該断熱連結板(133B)相互の間に該断熱連結板(133B)の厚み分の通気路(134) を形成したものが提供されている。そして、該屋根パネル(131)においては、前記垂木嵌合部(135)に屋根骨格の垂木(6)が嵌合することにより該屋根骨格に被着され、屋根の通気性を確保しつつ断熱性能を向上させた通気性屋根下地構造とされる（特許文献１参照）。 As a conventional roof panel (131), as shown in FIG. 17, a plurality of heat insulating main plates (133A) made of plastic foam are arranged with a gap between rafters, and the heat insulating main plates (133A) are made of plastic. A plurality of heat insulating materials (133) are connected by attaching a long and thin heat insulating connecting plate (133B) made of foam from the upper side, and a gap of the rafter width corresponding to the connecting portion is used as a rafter fitting portion (135). The heat insulating connecting plate (133B) is bonded to the lower surface of the field ground material (132) via the heat insulating connecting plate (133B), and the heat insulating connecting plate (133B) is mutually connected between the field ground material (132) and the heat insulating main plate (133A). An air passage (134) having a thickness of the heat insulating connecting plate (133B) is formed between them. In the roof panel (131), the rafter fitting (135) is attached to the roof skeleton by fitting the rafter (6) of the roof skeleton, and heat insulation is performed while ensuring the air permeability of the roof. A breathable roof base structure with improved performance (see Patent Document 1).
しかしながら、上記特許文献１の構成は、垂木と垂木嵌合部との間で気密が確保できず、通気性屋根下地構造の気密性が劣るという問題があった。このため、建物に隙間が生じることを防いで熱損失を小さくすることが困難であった。 However, the configuration of Patent Document 1 has a problem that airtightness cannot be ensured between the rafter and the rafter fitting portion, and the airtightness of the breathable roof base structure is inferior. For this reason, it was difficult to prevent a gap from being generated in the building and to reduce heat loss.
本発明は、上記のような屋根の気密性が劣るという問題を解決するためになされたものであり、プラスチック発泡体からなる断熱主板の複数枚が垂木巾の間隙を介して配置され、かつ、各断熱主板上面であって前記垂木巾の間隙に隣接する位置に、プラスチック発泡体からなる一対の断熱介挿板が該断熱主板の両側縁に沿ってそれぞれ貼着され、さらに該複数枚の断熱介挿板の上面に野地面材が接合され、該野地面材と該断熱主板との間において前記断熱介挿板相互の間に該断熱介挿板の厚み分の通気路が形成されており、前記垂木巾の間隙は垂木が介挿される垂木介挿部とされ、該垂木介挿部における野地面材表面に弾性気密保持材が貼着されていることを特徴とする屋根パネルである。 The present invention was made in order to solve the problem of poor airtightness of the roof as described above, a plurality of heat insulating main plates made of plastic foam are arranged through the gap of the rafter width, and A pair of heat-insulating insertion plates made of plastic foam are attached to the upper surface of each heat-insulating main plate adjacent to the gap between the rafters, along both side edges of the heat-insulating main plate, and the plurality of heat-insulating plates. A field material is joined to the upper surface of the interposed plate, and a ventilation path corresponding to the thickness of the heat insulating interposed plate is formed between the field insulating material and the heat insulating main plate between the heat insulating interposed plates. The gap between the rafters is a rafter insertion part in which a rafter is inserted, and an elastic airtight holding material is attached to the surface of the field material in the rafter insertion part.
上記屋根パネルにおいては、前記垂木介挿部における断熱主板及び／又は断熱介挿板の表面に弾性気密保持材が貼着されているものが望ましい。 In the said roof panel, what the elastic airtight holding material is affixed on the surface of the heat insulation main board in the said rafter insertion part and / or a heat insulation insertion board is desirable.
また本発明は、隅部又は谷部に沿って上記屋根パネルが配置された通気性屋根下地構造であって、隅木又は谷木と前記屋根パネルの断熱主板との間には、該隅木又は該谷木の側面に沿って傾斜した該断熱主板の側面に貼着されている弾性気密保持材が介在しており、また該屋根パネルにおける、野地面材及び断熱介挿板が前記隅木側又は前記谷木側に延出されてなる延出部が、該隅木又は該谷木上面に配置され、さらに該隅木又は該谷木と、該垂木とが接続する部位において、該垂木の上面は、該隅木又は谷木の上面から前記断熱介挿板の略厚み分だけ高く配置されていることを特徴とする通気性屋根下地構造である。 Further, the present invention is a breathable roof foundation structure in which the roof panel is arranged along a corner or a valley, the corner tree or the gap between the corner tree or valley tree and the heat insulating main plate of the roof panel. The elastic airtight holding material stuck to the side surface of the heat insulating main plate inclined along the side surface of the valley is interposed, and the field material and the heat insulating insertion plate in the roof panel are the corner wood side or the An extended portion that extends to the side of the valley is arranged on the corner tree or the upper surface of the valley tree, and further, the upper surface of the rafter is at the site where the corner tree or the valley tree and the rafter are connected to each other. It is a breathable roof foundation structure characterized in that it is disposed higher than the upper surface of a corner tree or a valley tree by substantially the thickness of the heat insulating insertion plate.
〔作用〕
上記屋根パネルにおいて、弾性気密保持材が配置された垂木介挿部に垂木が介挿されると、該垂木と野地面材とによって該弾性気密保持材が挟まれて弾性変形し、垂木介挿部と垂木との隙間が閉塞されて当該部位の気密が確保される。これにより、建物の隙間を防いで熱損失を小さくすることができる。また、該屋根パネルを垂木に被着した後に別途気密性を確保する作業が不要となるから、建て込み作業が簡便となる。また、該屋根パネルには、断熱介挿板相互の間に該断熱介挿板の厚み分の通気路が形成されているため、屋根の通気が適正に確保される。
[Action]
In the above roof panel, when a rafter is inserted into a rafter insertion portion in which an elastic airtight holding material is arranged, the elastic airtight holding material is sandwiched between the rafter and the field ground material and elastically deformed, and the rafter insertion portion And the gap between the rafters are closed, and the airtightness of the part is secured. Thereby, the clearance gap between buildings can be prevented and heat loss can be reduced. Moreover, since the work which ensures airtightness separately after attaching this roof panel to a rafter becomes unnecessary, an installation work becomes easy. Moreover, since the ventilation path for the thickness of this heat insulation insertion board is formed in this roof panel between heat insulation insertion boards, ventilation | gas_flowing of a roof is ensured appropriately.
さらに、前記垂木介挿部における断熱主板及び／又は断熱介挿板の表面に弾性気密保持材が貼着されると、該垂木介挿部の気密性がより一層向上する。 Furthermore, when an elastic airtight holding material is attached to the surface of the heat insulating main plate and / or the heat insulating insertion plate in the rafter insertion portion, the airtightness of the rafter insertion portion is further improved.
また、本発明の通気性屋根下地構造は、断熱主板と隅木又は断熱主板と谷木との間に弾性気密保持材が介在するから、隅部又は谷部においても気密性が確保される。 Moreover, since the airtight holding | maintenance material interposes between the heat insulation main board and a corner tree, or a heat insulation main board and a valley | wood, the air permeable roof base structure of this invention ensures airtightness also in a corner or a valley part.
〔効果〕
本発明は、屋根の通気性を確保しつつ気密を確保できるため、建物の隙間を防いで熱損失を小さくすることができる。
〔effect〕
The present invention can ensure airtightness while ensuring the air permeability of the roof, thereby preventing gaps between buildings and reducing heat loss.
本発明を図１〜図１６に示す一実施例によって以下に説明する。
屋根パネル(1)は野地面材(2)と、該野地面材(2)の下面に接着剤によって接着されている断熱材(3)とを主体としている。さらに詳述すると、図１に示すように、前記断熱材(3)は、複数枚の断熱主板(3A)と、各断熱主板(3A)の上面に配置された細長の断熱介挿板(3B)とからなり、前記断熱主板(3A)は、垂木(6)巾の間隙を介して複数枚が配置され、さらに前記断熱介挿板(3B)の一対が、断熱主板(3A)の上面であって前記垂木(6)巾の間隙に隣接する位置に、該断熱主板(3A)の両側縁に沿って上側からそれぞれ貼着されている。さらに、前記複数枚の断熱介挿板(3B)上に、前記野地面材(2)が差し渡されて接着され、かくして該野地面材(2)と該断熱主板(3A)との間において断熱介挿板(3B)相互の間に該断熱介挿板(3B)の厚み分の通気路(4) が形成されている。また、前記垂木(6)巾の間隙は、上下に貫通した垂木介挿部(5) となる。
The present invention will be described below with reference to an embodiment shown in FIGS.
The roof panel (1) mainly includes a field material (2) and a heat insulating material (3) bonded to the lower surface of the field material (2) with an adhesive. More specifically, as shown in FIG. 1, the heat insulating material (3) includes a plurality of heat insulating main plates (3A) and an elongated heat insulating insertion plate (3B) disposed on the upper surface of each heat insulating main plate (3A). A plurality of the heat insulating main plates (3A) are arranged with a rafter (6) width gap, and a pair of the heat insulating insertion plates (3B) is arranged on the upper surface of the heat insulating main plate (3A). In addition, the heat insulating main plate (3A) is attached to the position adjacent to the gap of the rafter (6) width along the both side edges from above. Further, the field ground material (2) is passed and bonded onto the plurality of heat insulation insertion plates (3B), and thus between the field ground material (2) and the heat insulation main plate (3A). Between the heat insulating insertion plates (3B), an air passage (4) having the thickness of the heat insulating insertion plate (3B) is formed. The gap between the rafters (6) is a rafter insertion part (5) penetrating vertically.
前記断熱主板(3A)及び前記断熱介挿板(3B)は、ポリスチレン発泡体、ポリエチレン発泡体、ポリプロピレン発泡体、半硬質ポリウレタン発泡体、上下両面にプラスチックフィルムが貼着されている半硬質ポリウレタン発泡体あるいはフェノール樹脂発泡体等のプラスチック発泡体が材料として採用され、より具体的には、Ａ種フェノールフォーム保温材、Ａ種ビーズ法ポリスチレンフォーム保温材、Ａ種ビーズ法ポリスチレンフォーム保温材、Ａ種押出法ポリスチレンフォーム保温材、Ａ種押出法ポリスチレンフォーム保温材を用いることができる。なお、前記断熱主板(3A)及び前記断熱介挿板(3B)の厚さは、各材料の断熱性能に応じて適宜設定される。 The heat insulating main plate (3A) and the heat insulating insertion plate (3B) are polystyrene foam, polyethylene foam, polypropylene foam, semi-rigid polyurethane foam, and semi-rigid polyurethane foam with plastic films attached to both upper and lower surfaces. Or a plastic foam such as a phenolic resin foam is used as a material. More specifically, a type A phenol foam heat insulating material, a type A bead method polystyrene foam heat insulating material, a type A bead method polystyrene foam heat insulating material, type A An extrusion method polystyrene foam heat insulating material and a Class A extrusion method polystyrene foam heat insulating material can be used. The thickness of the heat insulating main plate (3A) and the heat insulating insertion plate (3B) is appropriately set according to the heat insulating performance of each material.
さらに、図２に示すように、前記垂木介挿部(5)における野地面材(2)、断熱主板(3A)、及び断熱介挿板(3B)の各表面には、弾性材料からなる弾性気密保持材(8A,8B)が接着剤を介して貼着されている。該弾性気密保持材(8A),(8B)に用いられる材料としては、エチレン−プロピレン−ジエンゴム（EPDM）が使用され、ジエンとしては、エチリデンノルボルネン、ジシクロペンタジエン、１，４−ヘキサジエン等が用いられる。その他、スチレン−ブタジエンゴム(SBR)等を使用することもできる。そのなかでも特に、耐熱性、耐候性、及び成形加工性の点でエチレン−プロピレン−ジエンゴム（EPDM）を主要成分とし、さらにカーボンブラック、オイル、硫黄等、充填剤等、及び酸化亜鉛を含む合成ゴム発泡体からなるシール材が好適である。 Furthermore, as shown in FIG. 2, the surfaces of the ground material (2), the heat insulating main plate (3A), and the heat insulating insertion plate (3B) in the rafter insertion portion (5) are made of elastic material. An airtight holding material (8A, 8B) is stuck via an adhesive. Ethylene-propylene-diene rubber (EPDM) is used as the material used for the elastic airtight holding material (8A), (8B), and ethylidene norbornene, dicyclopentadiene, 1,4-hexadiene, etc. are used as dienes. It is done. In addition, styrene-butadiene rubber (SBR) or the like can be used. Among them, in particular, synthesis including ethylene-propylene-diene rubber (EPDM) as main components in terms of heat resistance, weather resistance, and moldability, and further including carbon black, oil, sulfur, fillers, and zinc oxide. A sealing material made of rubber foam is preferred.
そして、図３に示すように、該屋根パネル(1) は、垂木(6)が前記垂木介挿部(5)に介挿されて屋根骨格上に被着される。この状態において、該断熱材(3)の断熱主板(3A)と断熱介挿板(3B)とが該垂木(6)の左右両側を覆う配置となる。さらに、該垂木(6)と前記野地面材(2)との間に、該垂木(6)と該野地面材(2)とによって挟まれて弾縮した弾性気密保持材(8A)が介在することとなる。また、該垂木(6)と、前記断熱主板(3A)及び断熱介挿板(3B)との間に、該垂木(6)と該断熱主板(3A)及び該断熱介挿板(3B)とによって挟まれて弾縮した弾性気密保持材(8B)が介在することとなる。
なお、前記垂木(6)と前記野地面材(2)とは、該野地面材(2)上面側から該垂木(6)に向けて釘等（図示省略）が直接打ち付けられて強固に接合される。
As shown in FIG. 3, the roof panel (1) is attached on the roof skeleton with the rafters (6) inserted in the rafter insertion portions (5). In this state, the heat insulating main plate (3A) and the heat insulating insertion plate (3B) of the heat insulating material (3) are arranged to cover the left and right sides of the rafter (6). Further, between the rafter (6) and the field ground material (2), an elastic airtight holding material (8A) which is sandwiched between the rafter (6) and the field ground material (2) and is elastically interposed is interposed. Will be. Further, between the rafter (6) and the heat insulation main plate (3A) and the heat insulation insertion plate (3B), the rafter (6), the heat insulation main plate (3A) and the heat insulation insertion plate (3B) The elastic airtight holding material (8B) sandwiched between and elastically intervenes.
The rafter (6) and the field ground material (2) are firmly joined by directing a nail or the like (not shown) from the upper surface side of the field ground material (2) toward the rafter (6). Is done.
上記構成により、屋根パネル(1)と屋根骨格とが一体化されて剛性が向上し、屋根の水平強度も十分に確保され、かつ断熱性が確保される。また、前記弾性気密保持材(8A,8B)が弾性変形して垂木介挿部(5)と垂木(6)とに密着してこれらの隙間を塞ぐため、該垂木介挿部(5)における気密性が向上する。 With the above configuration, the roof panel (1) and the roof skeleton are integrated to improve the rigidity, the horizontal strength of the roof is sufficiently secured, and the heat insulation is secured. In addition, the elastic airtight holding member (8A, 8B) is elastically deformed to closely contact the rafter insertion part (5) and the rafter (6) to close these gaps, so that the rafter insertion part (5) Airtightness is improved.
ところで、図３，４に示すように、該垂木(6)は、下側において軒桁(7A)、母屋(7B)、棟木(7C)によって支持されている。さらに、軒先部にあって、該屋根パネル(1)の通気路(4)軒先側端が、外気に開放されており、また該断熱材(3)の断熱主板(3A)の下面は、壁断熱材(20)の上端と当接している。また、該屋根パネル(1)の断熱主板(3A)の下面と、該壁断熱材(20)の上端との間に形成された隙間には、軟質ポリウレタン発泡体、軟質ポリ塩化ビニル発泡体、合成ゴムスポンジ等の軟質プラスチック発泡体からなる断熱性シール材(9)が充填され、屋根の断熱材(3)と壁断熱材(20)との接合部において、断熱構造の連続性が断たれることを防止している。さらに、棟部にあっても、左右の屋根パネル(1,1)の接合部の隙間に、同様な断熱性シール材(10)が充填されて、断熱構造の連続性が断たれることを防止している。
なお、該断熱性シール材(10)は、該屋根パネル(1)の通気路(4)を閉塞しないように該屋根パネル(1)の断熱材(3)の断熱主板(3A)間に充填されており、棟に沿って左右の屋根パネル(1,1)間に形成される通気路(11)に該屋根パネル(1,1)の各通気路(4,4)の棟側端が開放されるように設定されている。
By the way, as shown in FIGS. 3 and 4, the rafter (6) is supported on the lower side by an eaves girder (7A), a purlin (7B), and a purlin (7C). Further, in the eaves portion, the air passage (4) eaves side end of the roof panel (1) is open to the outside air, and the lower surface of the heat insulating main plate (3A) of the heat insulating material (3) is a wall It is in contact with the upper end of the heat insulating material (20). Further, in the gap formed between the lower surface of the heat insulating main plate (3A) of the roof panel (1) and the upper end of the wall heat insulating material (20), soft polyurethane foam, soft polyvinyl chloride foam, Insulating sealing material (9) made of soft plastic foam such as synthetic rubber sponge was filled, and the continuity of the insulating structure was cut off at the joint between the roof insulating material (3) and the wall insulating material (20). Is prevented. Furthermore, even in the ridge, the gap between the joints of the left and right roof panels (1,1) is filled with the same heat insulating sealing material (10), and the continuity of the heat insulating structure is interrupted. It is preventing.
The heat insulating sealing material (10) is filled between the heat insulating main plates (3A) of the heat insulating material (3) of the roof panel (1) so as not to block the air passage (4) of the roof panel (1). The ridge side end of each ventilation channel (4, 4) of the roof panel (1, 1) is connected to the ventilation channel (11) formed between the left and right roof panels (1, 1) along the ridge. It is set to be released.
図５に示すように、該屋根パネル(1)の野地面材(2)の上面には、屋根材(12)が葺設される。そして棟部にあっては、笠木(13,13)を介して水切り板(14)が被覆されている。そして、棟部所定個所には、図６および図７に示すような、棟換気部材(16)が被着されており、屋根(17)の該通気路(11)が該棟換気部材(16)を介して、外気に開放されるように設定されている。
該棟換気部材(16)は、ポリプロピレン、ポリ塩化ビニル等のプラスチックを材料とし、笠形水切り板(16A)と、該水切り板(16A)の下面両側に接着される通気性ブロック(16B)とからなり、該通気性ブロック(16B)には、例えば、ハニカム状に多数の連通孔が設けられている。
As shown in FIG. 5, a roof material (12) is provided on the upper surface of the field material (2) of the roof panel (1). And in the ridge part, the draining board (14) is coat | covered through the coping (13,13). 6 and FIG. 7, a ridge ventilation member (16) as shown in FIGS. 6 and 7 is attached, and the ventilation passage (11) of the roof (17) is connected to the ridge ventilation member (16). ) To be open to the outside air.
The ridge ventilation member (16) is made of a plastic such as polypropylene or polyvinyl chloride, and includes a cap-shaped draining plate (16A) and a breathable block (16B) bonded to both sides of the lower surface of the draining plate (16A). Thus, the air-permeable block (16B) is provided with a large number of communication holes in a honeycomb shape, for example.
上記屋根(17)にあっては、軒先側の換気は屋根パネル(1)の通気路(4)の軒先端が直接外気に開放していることによって行なわれ、棟側換気は、屋根パネル(1)の通気路(4)が通気路(11)に開放され、該通気路(11)が該棟換気部材(16)を介して外気に開放されることによって行なわれる。 In the roof (17), the ventilation on the eaves side is performed by the eave end of the ventilation channel (4) of the roof panel (1) being directly open to the outside air, and the ridge side ventilation is performed on the roof panel ( The air passage (4) of 1) is opened to the air passage (11), and the air passage (11) is opened to the outside air through the building ventilation member (16).
また前記屋根(17)は、図８に示すような寄棟屋根の場合があり、かかる屋根(17)においては、両端が内側に傾斜している隅部(17A)が形成される。そして、該隅部(17A)に沿って配置された屋根パネル(1)においては、図９〜図１１に示すように、隅木(7D)と向かい合う断熱主板(3A)の側面(30A)が、該隅木(7D)の側面(71)に側面に沿って傾斜し、さらにその表面に弾性気密保持材(8C)が貼着されている。ここで、図１１に示すように、該屋根パネル(1)が垂木(6)及び隅木(7D)に被着された状態にあっては、該側面(30A)は、水平方向GLに対して垂直な鉛直面（L1方向）となる。したがって、該側面(30A)は、傾斜した野地面材(2)（L2方向）に対して鋭角αをなすことになる。 Further, the roof (17) may be a dormitory roof as shown in FIG. 8, and in the roof (17), corners (17A) whose both ends are inclined inward are formed. And in the roof panel (1) arranged along the corner (17A), as shown in FIGS. 9 to 11, the side surface (30A) of the heat insulating main plate (3A) facing the corner tree (7D) The corner tree (7D) is inclined along the side surface (71) along the side surface, and an elastic airtight holding material (8C) is adhered to the surface thereof. Here, as shown in FIG. 11, when the roof panel (1) is attached to the rafter (6) and the corner tree (7D), the side surface (30A) is in the horizontal direction GL. It becomes a vertical plane (L1 direction). Therefore, the side surface (30A) forms an acute angle α with respect to the inclined field ground material (2) (L2 direction).
そして、該屋根パネル(1)の垂木介挿部(5)に垂木(6)が介挿された状態で、前記弾性気密保持材(8C)が該断熱主板(3A)の側面(30A)と隅木(7D)の側面(71)との間に挟まれて弾縮した状態となる。また、該隅木(7D)に沿う野地面材(2)及び断熱介挿板(3B)の端部は、前記断熱主板(3A) の側面(30A)よりも隅木(7D)側に延出した延出部(35)とされ、該延出部(35)が該隅木(7D)の傾斜した上面(70)に、かかる傾斜に沿って載置される。
なお、該隅木(7D)、及び該隅木(7D)に接続する垂木(6)は、その接続部位において、該垂木(6)の上面が該隅木(7D)の上面(70)より前記断熱介挿板(3B)の略厚み分だけ高く設定される（図１０等参照）。また、前記屋根パネル(1)において、隅木(7D)に沿った前記断熱介挿板(3B)の外縁は、該隅木(7D)に沿った前記野地面材(2)の外縁に沿って形成される。
And in the state where the rafters (6) are inserted into the rafter insertion part (5) of the roof panel (1), the elastic airtight holding material (8C) and the side surface (30A) of the heat insulating main plate (3A) It is sandwiched between the side surface (71) of the corner tree (7D) and is in an elastic state. Further, the end portions of the field material (2) and the heat insulation insertion plate (3B) along the corner tree (7D) extend to the corner tree (7D) side than the side surface (30A) of the heat insulation main plate (3A). The extension part (35) is placed on the inclined upper surface (70) of the corner tree (7D) along the inclination.
Note that the corner tree (7D) and the rafter (6) connected to the corner tree (7D) are such that the upper surface of the rafter (6) is more thermally insulated than the upper surface (70) of the corner tree (7D) at the connection site. It is set higher by the approximate thickness of the insertion plate (3B) (see FIG. 10 etc.). Further, in the roof panel (1), the outer edge of the heat insulating insertion plate (3B) along the corner tree (7D) is formed along the outer edge of the field ground material (2) along the corner tree (7D). Is done.
かかる構成にあって、図１０に示すように、隅木(7D)上であって前記延出部(35,35)間に開口した該屋根パネル(1)の通気路(4) は、該隅部(17A)における通気路(11)と連通し、さらに断熱主板(3A)と隅木(7D)との間で気密性が確保される。なお、該隅部(17A)は棟部と同様に笠木(13,13)を介して水切り板(14)が被覆される。 In such a configuration, as shown in FIG. 10, the air passage (4) of the roof panel (1) opened on the corner tree (7D) and between the extension portions (35, 35) The air passage (11) in the portion (17A) communicates with the heat insulating main plate (3A) and the corner tree (7D) to ensure airtightness. The corner (17A) is covered with a draining plate (14) through a cap (13, 13) in the same manner as the ridge.
さらに、図１２に示すように、中央から直角に屋根(17B)が分岐した構造のものがある。この場合には、屋根(17)と分岐屋根(17B)との間に谷部(17C)が形成される。この場合においても、図１３，１４に示すように、谷木(7E)の側面(73)に側面に沿って傾斜した、谷木(7E)の側面(73)と向かい合う断熱主板(3A)の側面(30B)に弾性気密保持材(8C)を貼着し、左右の屋根パネル(1,1) の断熱材(3,3)の断熱主板(3A)の間に谷木(7E)を配置する。この際、前記弾性気密保持材(8C)は、断熱主板(3A)と谷木(7E)とに挟まれて弾縮する。ここで、図１５に示すように、該屋根パネル(1)が屋根骨格の垂木(6)及び谷木(7E)に被着された状態にあっては、該側面(30B)は、水平方向GLに対して垂直な鉛直面（L1方向）となる。したがって、該側面(30B)は、傾斜した野地面材(2)（L2方向）に対して鈍角βをなすことになる。 Furthermore, as shown in FIG. 12, there is a structure in which a roof (17B) branches at a right angle from the center. In this case, a trough (17C) is formed between the roof (17) and the branched roof (17B). Also in this case, as shown in FIGS. 13 and 14, the heat insulating main plate (3A) facing the side surface (73) of the valley (7E), which is inclined along the side surface (73) of the valley (7E). Adhere elastic airtight holding material (8C) on the side (30B), and place the valley (7E) between the heat insulation main plates (3A) of the heat insulation (3,3) of the left and right roof panels (1,1) To do. At this time, the elastic airtight holding member (8C) is elastically sandwiched between the heat insulating main plate (3A) and the valley (7E). Here, as shown in FIG. 15, when the roof panel (1) is attached to the rafters (6) and the valleys (7E) of the roof skeleton, the side surface (30B) It is a vertical plane (L1 direction) perpendicular to GL. Therefore, the side surface (30B) forms an obtuse angle β with respect to the inclined field ground material (2) (L2 direction).
また、谷木(7E)に沿った野地面材(2)と断熱介挿板(3B)とからなる延出部(35)を該谷木(7E)の上面(72)に面接触状に載せ、その上から逆笠形の水切り板(14A)を被着する。なお、該谷木(7E)、及び該谷木(7E)に接続する垂木(6)は、その接続部位において、該垂木(6)の上面が該谷木(7E)の上面(72)より前記断熱介挿板(3B)の略厚み分だけ高く配置される（図１４等参照）。 Further, the extended portion (35) composed of the field material (2) and the heat insulating insertion plate (3B) along the valley (7E) is in surface contact with the upper surface (72) of the valley (7E). Place it and apply a reverse-shaded drainer (14A) on it. The rafter (7E) and the rafter (6) connected to the trough (7E) are such that the upper surface of the rafter (6) is higher than the upper surface (72) of the trough (7E) at the connection site. The heat insulating insertion plate (3B) is disposed so as to be substantially thicker (see FIG. 14 and the like).
上記構成により、谷木(7E)上であって前記延出部(35,35)間に開口した該屋根パネル(1)の通気路(4) は、該谷部(17C)における通気路(11)と連通し、さらに断熱主板(3A)と谷木(7E)との間で気密性が確保される。 With the above configuration, the ventilation path (4) of the roof panel (1) opened on the valley (7E) and between the extension parts (35, 35) is the ventilation path ( 11) and airtightness is ensured between the heat insulating main plate (3A) and the valley (7E).
これまでに述べた構成は、図１６に示すような屋根構造においても好適に採用することができ、隅部(17A)又は谷部(17C)に沿って配置される屋根パネル(1)は、屋根パネル(1)を平面視した際に直角三角形、台形、平行四辺形及び五角形となる。 The configuration described so far can also be suitably employed in a roof structure as shown in FIG. 16, and the roof panel (1) arranged along the corner (17A) or the valley (17C) When the roof panel (1) is viewed in plan, it becomes a right triangle, trapezoid, parallelogram, and pentagon.
また、本発明は上記実施例に限定されず、本発明の主旨を逸脱しない範囲で適宜設計変更可能である。例えば、前記弾性気密保持材(8B)は、垂木(6)と、断熱主板(3A)又は断熱介挿板(3B)との間に適宜介在させてもよい。 Further, the present invention is not limited to the above-described embodiments, and the design can be changed as appropriate without departing from the gist of the present invention. For example, the elastic airtight holding material (8B) may be appropriately interposed between the rafter (6) and the heat insulating main plate (3A) or the heat insulating insertion plate (3B).
本発明は、屋根の通気性を確保しつつ、屋根骨格と屋根パネルとの間の気密性が充分に確保されるものであり、産業上利用可能である。 INDUSTRIAL APPLICATION The airtightness between a roof frame | skeleton and a roof panel is fully ensured, and this invention is industrially applicable, ensuring the air permeability of a roof.
1 屋根パネル
2 野地面材
3 断熱材
3A 断熱主板
3B 断熱介挿板
4 通気路
5 垂木介挿部
6 垂木
70 隅木の上面
71 隅木の側面
72 谷木の上面
73 谷木の側面
7D 隅木
7E 谷木
8A,8B,8C 弾性気密保持材
30A,30B 断熱主板の側面
35 延出部
1 Roof panel
2 Field material
3 Insulation
3A heat insulation main plate
3B Insulation board
4 Ventilation path
5 Rafter insertion part
6 rafters
70 The top of the corner tree
71 Side of the corner
72 Top view of Yanagi
73 Side of the valley
7D Sumiki
7E Tanigi
8A, 8B, 8C Elastic airtight holding material
Side surface of 30A, 30B heat insulation main plate
35 Extension
Claims (3)
隅木又は谷木と前記屋根パネルの断熱主板との間には、該隅木又は該谷木の側面に沿って傾斜した該断熱主板の側面に貼着されている弾性気密保持材が介在しており、
また該屋根パネルにおける、野地面材及び断熱介挿板が前記隅木側又は前記谷木側に延出されてなる延出部が、該隅木又は該谷木上面に配置され、
さらに該隅木又は該谷木と、該垂木とが接続する部位において、該垂木の上面は、該隅木又は谷木の上面から前記断熱介挿板の略厚み分だけ高く配置されていることを特徴とする通気性屋根下地構造。
A breathable roof foundation structure in which the roof panel according to claim 1 or 2 is arranged along a corner or a valley,
An elastic airtight holding material stuck to the side surface of the heat insulating main plate inclined along the side surface of the corner tree or the valley tree is interposed between the corner tree or the valley plate and the heat insulating main plate of the roof panel. ,
Further, in the roof panel, an extended portion in which the field material and the heat insulating insertion plate are extended to the corner wood side or the valley tree side is disposed on the corner tree or the top surface of the valley tree,
Furthermore, in the part where the corner tree or the valley tree and the rafter are connected, the upper surface of the rafter is arranged to be higher than the upper surface of the corner tree or the valley tree by the approximate thickness of the heat insulating insertion plate. Breathable roof foundation structure.
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