JPH04222749A - Construction for ridge for double-roofing roof - Google Patents
Construction for ridge for double-roofing roofInfo
- Publication number
- JPH04222749A JPH04222749A JP41291190A JP41291190A JPH04222749A JP H04222749 A JPH04222749 A JP H04222749A JP 41291190 A JP41291190 A JP 41291190A JP 41291190 A JP41291190 A JP 41291190A JP H04222749 A JPH04222749 A JP H04222749A
- Authority
- JP
- Japan
- Prior art keywords
- ridge
- roof
- cover
- section
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 title description 8
- 239000000463 material Substances 0.000 claims description 64
- 230000000903 blocking effect Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 16
- 239000002184 metal Substances 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000010454 slate Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は上層屋根部と下層屋根部
との間に排水空間を形成した二重葺き屋根構造の改良に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a double roof structure in which a drainage space is formed between an upper roof and a lower roof.
【0002】0002
【従来の技術】屋根材の意匠及び素材は近年多様化して
きており、例えば従来はビルのパラペット等に化粧目的
で使用されていたにすぎなかったタイルや天然スレート
が鉄骨造りのビルの屋根に用いられる傾向がある。[Prior Art] The designs and materials of roofing materials have diversified in recent years. For example, tiles and natural slate, which were previously only used for decorative purposes such as building parapets, are now being used on the roofs of steel-framed buildings. It tends to be used.
【0003】ところが、タイルや天然スレートのような
屋根材は、ビルの頂部のように高所で強風を受けるよう
な条件下では十分な雨仕舞いを施し難いという問題点が
ある。これに対して、このような屋根材を使用したうえ
でなお十分な雨仕舞い性能を確保するためには、本出願
人が提案しているような二重葺き屋根構造を採用するこ
とが考えられる。これは屋根を表面側の上層屋根部と裏
面側の下層屋根部とで構成して上下屋根部の間に排水用
の空間を形成し、雨水等が上層屋根部を通過して浸入し
てきた場合にはこれを下層屋根部を構成する下葺き屋根
板材の上面に沿って軒先方向に流れ落とすようにしたも
のである。(関連公知資料としては、例えば特開昭60
−215963号公報参照。)[0003] However, roofing materials such as tiles and natural slate have a problem in that it is difficult to provide sufficient rain protection under conditions where they are exposed to strong winds at high places such as the tops of buildings. On the other hand, in order to ensure sufficient rain protection performance even when using such roofing materials, it is possible to adopt a double-thick roof structure as proposed by the applicant. . This is because the roof consists of an upper roof on the front side and a lower roof on the back side, and a space for drainage is formed between the upper and lower roofs, and if rainwater etc. enters through the upper roof. This is made to flow down toward the eaves along the upper surface of the under-thatched roof sheet material that makes up the lower roof. (Related publicly known materials include, for example, JP-A-60
See Publication No.-215963. )
【0004】0004
【発明が解決しようとする課題】ところで、一般に屋根
の棟納めは、棟芯から木または金属フレーム等による棟
下地を形成し、この下地に「棟包み」等と呼ばれる棟カ
バーで屋根板材最終段の後端部を覆うように取り付ける
構造となっているが、これには次のような施工上及び構
造上の問題があったため、たとえ二重葺きの屋根構造と
しても、棟納めの部分が冠水するほどの悪条件下での家
屋内部への漏水を確実に防止することは困難であった。[Problems to be Solved by the Invention] Generally speaking, when installing a roof ridge, a ridge base is formed using a wooden or metal frame from the ridge core, and a ridge cover called ``ridge wrapping'' is used as the final layer of roof board material on this base. The structure is such that it is attached to cover the rear end, but this had the following construction and structural problems. It was difficult to reliably prevent water leakage into the interior of a house under such adverse conditions.
【0005】すなわち、屋根の棟カバーは一般住宅を除
く建築物では大部分が屋根板材最終段施工後の現場寸法
を確認したうえで加工し、取り付けるようにしているの
であるが、棟部分の施工作業は一般屋根面とは異なり熟
練を要するので、作業者の技術によって雨仕舞い性能の
良否が生じやすい。具体的には、屋根板材最終段後端部
と棟カバーとの取り合い部は、一般に立ち上げ納めが施
されるが、この部分に強風雨が作用した場合には、風圧
により棟内部に雨水が吹き込むことがあり、特にこの部
分に施工不良があった場合には確実に漏水してしまう。
あるいは、屋根板材を加工して棟カバーを形成して、棟
芯でハゼ継ぎする構造の納めとした場合にも、そのハゼ
継ぎ部分に施工不良があった場合には棟部分からの漏水
が起こる。さらに棟カバーの長手方向の継ぎは通常は重
ね継ぎされるが、この継ぎ部分に施工不良があった場合
にも漏水してしまう。[0005] In other words, most roof ridge covers are processed and installed on buildings other than ordinary houses after confirming the on-site dimensions after the final stage of roofing board construction. Unlike general roof work, the work requires skill, so the ability to shut off rain tends to vary depending on the skill of the worker. Specifically, the area where the rear end of the last row of roofing sheets meets the ridge cover is generally built upright, but if this area is exposed to strong winds and rain, the wind pressure can cause rainwater to flow inside the ridge. If there is poor construction in this area, water will definitely leak. Alternatively, even if a ridge cover is formed by processing roof board materials, and the structure is made with a seam joint at the ridge core, water may leak from the ridge if there is a construction defect in the seam joint. . Furthermore, the longitudinal joints of the ridge cover are usually overlapped, but if there is a construction defect in these joints, water can leak.
【0006】本発明はこのような従来の問題点を解消し
て、雨仕舞い性能に優れた二重葺き屋根構造を提供する
ことを目的としている。The object of the present invention is to solve these conventional problems and provide a double-thick roof structure with excellent rain-shedding performance.
【0007】[0007]
【課題を解決するための手段】上記目的を達成するため
に本発明では、表面側の上層屋根部と内部側の下層屋根
部との間に排水空間を形成した二重葺き屋根構造におい
て、屋根の棟芯部にて互いに対向する下葺き屋根板材の
棟側端部を上方に立ち上げて棟方向に沿った起立面を形
成する。また、下葺き屋根板材の棟側端部を被覆する棟
カバーを、該カバーの軒側端部が前記起立面よりも軒先
方向に延出するように設ける。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a double roof structure in which a drainage space is formed between the upper roof part on the surface side and the lower roof part on the inside side. The ridge-side ends of the under-thatched roof sheets facing each other at the ridge core are raised upward to form an upright surface along the ridge direction. Further, a ridge cover that covers the ridge-side end of the under-thatched roof board material is provided such that the eave-side end of the cover extends further toward the eaves than the upright surface.
【0008】[0008]
【作用】上記構成に基づき、相互に対向する下葺き屋根
板材の棟側端部が棟カバーにより被覆されているため、
上層屋根部の棟納めに不備があって雨水が浸入したとし
ても、この雨水は下層屋根部を通過するようなことがな
く、棟カバーにより下葺き屋根板材の上面に沿って軒先
方向へと案内される。[Operation] Based on the above configuration, the ridge side ends of the mutually opposing underlayment roofing sheets are covered with the ridge cover, so
Even if rainwater infiltrates due to a defect in the ridge of the upper roof, the rainwater will not pass through the lower roof, and will be guided toward the eaves along the top surface of the under-thatched roof board by the ridge cover. be done.
【0009】また、風圧等の影響で下葺き屋根板材上の
水が棟方向へと吹き上げられるようなことがあっても、
該屋根板材の棟側端部に形成した起立部にて棟カバー内
側方向への水の浸入が阻止されると共に、棟カバー下面
に該起立部の高さに相当する空間が確保されているので
毛管現象による水の吸い込みも起こさない。したがって
、二重葺き屋根構造として一段と優れた耐候性が発揮さ
れる。[0009] Furthermore, even if water on the under-thatched roof sheets is blown up toward the ridge due to wind pressure, etc.,
The raised part formed at the ridge side end of the roof board material prevents water from entering inward of the ridge cover, and a space corresponding to the height of the raised part is secured on the lower surface of the ridge cover. It also does not cause water to be sucked in due to capillary action. Therefore, the double roof structure exhibits even better weather resistance.
【0010】0010
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図1は二重屋根の棟部分の詳細を示しており、図
中1は下層屋根部、2は上層屋根部、3はこれらのあい
だに形成された排水空間である。Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. Figure 1 shows details of the ridge part of a double roof, in which 1 is the lower roof, 2 is the upper roof, and 3 is the drainage space formed between them.
【0011】下層屋根部1は、棟芯部を中心として両軒
先方向へと所定の勾配を有する屋根面をなすように配置
されたC形鋼の母屋材からなる下地部4の上に構築され
ている。構造的には、前記下地部の上に、直接もしくは
断熱材等の内装材5とアスファルト層6等を介して間接
に敷設される下葺き屋根板材7からなる。尚、本実施例
の下地部4には前期したとおり、C形鋼の母屋材を示し
たが、これに限定されるものではなく、例えば木造の母
屋組、ALCパネル、コンクリート躯体等も含むもので
ある。[0011] The lower roof part 1 is constructed on a base part 4 made of C-shaped steel purlins arranged so as to form a roof surface having a predetermined slope in the direction of both eaves with the ridge center as the center. ing. Structurally, it consists of an underlaying roof board material 7 that is laid directly or indirectly through an interior material 5 such as a heat insulating material and an asphalt layer 6 on the base section. As mentioned above, the base part 4 of this embodiment is shown as a purlin material made of C-shaped steel, but is not limited to this, and includes, for example, a wooden purlin assembly, an ALC panel, a concrete frame, etc. .
【0012】上記下葺き屋根板材7は亜鉛鋼板等の薄い
金属板材からなり、図2または図3に示したように軒棟
方向に沿った角形断面の突条部7aと平板状の底面部7
bとが所定の間隔で交互に形成された、いわゆる角波状
のものである。その棟側端部には、前記突条部7aとの
境界部分を内側に折り返すようにして底面部7bの一縁
部を立ち上げ、棟方向に沿って突条部7aに相当する高
さの起立部7cが形成されている。[0012] The under-thatching roof board material 7 is made of a thin metal plate material such as a galvanized steel plate, and as shown in FIG. 2 or FIG.
b are formed alternately at predetermined intervals, which is a so-called square wave shape. At the ridge side end part, one edge of the bottom surface part 7b is raised up so that the boundary part with the protrusion part 7a is folded inward, and a height corresponding to the protrusion part 7a is raised along the ridge direction. A standing portion 7c is formed.
【0013】この屋根板材7は、図1に示したように左
右両屋根面について前記起立部7cが棟芯を挟んで所定
の間隔で対向するように、それぞれ両軒先に至る幅で内
装材5の上に葺かれる。なお、図9に示したように棟方
向については隣接するものの突条部7aないし底面部7
bどうしが一部重合するようにして必要なだけ連接され
る。As shown in FIG. 1, this roof board material 7 has an interior material 5 with a width extending to both eaves so that the upright portions 7c face each other at a predetermined interval across the ridge core on both the left and right roof surfaces. Thatched on top. In addition, as shown in FIG.
b are connected as necessary so that they partially polymerize with each other.
【0014】棟方向に隣接する内装材5の間に位置する
ように、下地部4の上部には固定金具8が金具固定ボル
ト9を介して締着されており、このボルト9の上端部は
内装材5の上に敷設された上記下葺き屋根板材7の突条
部7aを貫通して上方に突出している。前記ボルト9の
突出部にはナット10が螺着され、突条部7aとの間に
垂木固定金具11を共締めしている。A fixing fitting 8 is fastened to the upper part of the base part 4 via a fitting fixing bolt 9 so as to be located between the interior materials 5 adjacent in the ridge direction, and the upper end of this bolt 9 is It penetrates the protruding strip 7a of the under-thatching roof board material 7 laid on the interior material 5 and projects upward. A nut 10 is screwed onto the protruding portion of the bolt 9, and a rafter fixing fitting 11 is fastened together between the protruding portion 7a and the protruding portion 7a.
【0015】上記垂木固定金具11には、下葺き屋根板
材7の突条部7aの上に重なる態様で金属垂木12が固
定され、この垂木12の上に上層屋根部2が構築される
。上層屋根部2は、軒側から棟側へと横葺きされる複数
の上葺き屋根板材13とその裏面に配置されるバックア
ップ材14などからなる。A metal rafter 12 is fixed to the rafter fixing fittings 11 in such a manner that it overlaps the protrusion 7a of the under-thatched roof board material 7, and the upper roof part 2 is constructed on top of this rafter 12. The upper roof part 2 is made up of a plurality of upper roof board members 13 horizontally thatched from the eaves side to the ridge side, a backup material 14 arranged on the back side thereof, and the like.
【0016】各屋根板材13は吊子金具15を介してバ
ックアップ材14とともに垂木12の上に固定され、こ
のとき棟側端部を棟側に隣接する他の屋根板材13の軒
側端部と係合して相互に連接される。垂木12上で最も
棟側に位置するものについては図1に示したように垂木
12の上に固定された吊子金具15を介して位置決め及
び固定がなされる。Each roof board material 13 is fixed on the rafter 12 together with a backup material 14 via a hanging metal fitting 15, and at this time, the ridge side end is connected to the eave side end of another roof board material 13 adjacent to the ridge side. engaged and interconnected. As shown in FIG. 1, the rafter 12 located closest to the ridge is positioned and fixed via the hanging metal fittings 15 fixed on the rafter 12.
【0017】一方、棟芯部には左右の屋根面にまたがる
ようにして金属板材からなる棟金具16が取り付けられ
る。この棟金具16は屋根の棟方向のほぼ全長にわたる
長尺材として構成され、図示したように屋根の勾配に併
せて中央部を屈曲させた頂部16aの両端から側面部1
6bを略鉛直に垂下し、その下端部を外側上方向きへと
湾曲させてフランジ部16cとなし、さらにフランジ部
16cの端部を外側に折り曲げてバックアップ材14の
支持部16dが形成されている。その固定は、左右両屋
根側の互いに対向する垂木12の上面にビス17を介し
て両フランジ部16cを締着することにより行われる。On the other hand, a ridge fitting 16 made of a metal plate is attached to the ridge core so as to span the left and right roof surfaces. This ridge fitting 16 is constructed as a long member extending almost the entire length in the ridge direction of the roof, and extends from both ends of the top part 16a, whose central part is bent in accordance with the slope of the roof, to the side part 1.
6b hangs down approximately vertically, its lower end is curved outward and upward to form a flange portion 16c, and the end of the flange portion 16c is further bent outward to form a support portion 16d of the backup material 14. . The fixation is performed by fastening both flanges 16c to the upper surfaces of the rafters 12 facing each other on both the left and right roof sides via screws 17.
【0018】上記棟金具16の支持部16dと吊子金具
15の段付部15aとの間には、これらの上面に載置す
る態様で最終段のバックアップ材14が取り付けられる
とともに、このバックアップ材14を覆うようにして最
終段の上葺き屋根板材18が取り付けられる。この最終
段の屋根板材18は、その軒側端部を下方内側に折り返
して形成された軒側係合部18aを吊子金具15上部の
係合部15bに挿入すると共に、棟側端部に上方に立ち
あげ形成された取付面部18bをビス19を介して棟金
具側面部16bに締着することにより固定される。A final stage backup material 14 is attached between the supporting part 16d of the ridge fitting 16 and the stepped part 15a of the suspender fitting 15 in such a manner that it is placed on top of these parts, and this backup material The final roofing board material 18 is attached to cover the roof 14. This final stage of roof board material 18 is formed by folding the eave side end downward and inward to insert the eave side engaging part 18a into the engaging part 15b on the upper part of the suspender fitting 15, and at the same time It is fixed by fastening the upwardly formed mounting surface portion 18b to the ridge fitting side surface portion 16b via screws 19.
【0019】また、棟金具頂部16aの中央には、アル
ミ押出加工により長尺材として形成された棟木20が設
けられる。この金属製の棟木20は、ビス21を介して
棟金具16に締め着けられるフランジ部20aの中央部
から支持面部20bが立ちあげられ、その頂部から屋根
面の勾配に合わせて保持面部20cが形成されている。
前記保持面部20cの内側は次に述べる棟カバー22の
保持部20dとなっている。Further, a ridgepole 20 formed as a long material by extrusion of aluminum is provided at the center of the top part 16a of the ridge fitting. In this metal purlin 20, a support surface portion 20b is raised from the center of a flange portion 20a that is fastened to the ridge fitting 16 via screws 21, and a support surface portion 20c is formed from the top of the flange portion 20b in accordance with the slope of the roof surface. has been done. The inside of the holding surface portion 20c is a holding portion 20d of the ridge cover 22, which will be described next.
【0020】棟金具16の上面は、上記棟木20と最終
段の上葺き屋根板材18との間に位置する棟カバー22
により被覆される。この棟カバー22は屋根板材と同様
の金属薄板材からなり、その棟側端部を上方に折り返し
て形成された棟側固定部22aを上記棟木保持部20d
の内側に係合すると共に、軒側端部を下方に折り曲げて
形成された軒側固定部22bを、屋根板材18の取付面
部18bの上端から外側に折り返し形成された固定面部
18cにビス23を介して締着することにより棟金具1
6上に固定される。The upper surface of the ridge fitting 16 is covered by a ridge cover 22 located between the ridgepole 20 and the final roofing board 18.
covered by. This ridge cover 22 is made of a metal thin plate material similar to the roof board material, and the ridge side end portion thereof is folded upward to form a ridge side fixing portion 22a, which is attached to the ridge pole holding portion 20d.
At the same time, screws 23 are inserted into the eave side fixing part 22b formed by bending the eave side end part downward, and the fixing face part 18c formed by folding the upper end of the mounting surface part 18b of the roof board material 18 outward. By tightening the ridge fitting 1 through
6.
【0021】そして、このようにして左右に棟カバー2
2が取り付けられた状態で、棟木20を覆うハット形断
面形状の金属薄板材からなる棟キャップ24が取り付け
られる。この棟キャップ24は、その頂面部24aの両
端から下方に垂下された側面部24bの下端部が棟カバ
ー22の上面に接して上記保持部20dへの浸水を防止
する構成となってる。[0021] In this way, the ridge cover 2 is installed on the left and right sides.
2 is attached, a ridge cap 24 made of a thin metal plate and having a hat-shaped cross section is attached to cover the ridgepole 20. The ridge cap 24 is configured such that the lower end of the side surface portion 24b hanging downward from both ends of the top surface portion 24a comes into contact with the upper surface of the ridge cover 22 to prevent water from entering the holding portion 20d.
【0022】本発明では、このような二重葺き屋根構造
を前提として下層屋根部1の棟芯部を覆う下層側の棟カ
バー26を設けたことを大きな特徴とするものである。
この棟カバー26は、棟方向の寸法に合わせた長尺の金
属薄板材からなり、その中央部を左右屋根面の勾配に合
わせて折り曲げた形状をしている。また、幅については
その軒側の端部が上記下葺き屋根板材7の起立部7cよ
りも軒側に位置するように設定されている。なお、この
場合棟カバー26はその軒側端部近傍位置にてビス27
を介して垂木12の上面に締着されている。A major feature of the present invention is that a lower ridge cover 26 is provided on the lower layer side to cover the ridge core of the lower roof portion 1, assuming such a double roof structure. The ridge cover 26 is made of a long thin metal plate that matches the dimensions in the ridge direction, and has a shape in which the center portion is bent to match the slope of the left and right roof surfaces. Further, the width is set so that the end portion on the eave side is located closer to the eave than the upright portion 7c of the under-thatched roof board 7. In this case, the ridge cover 26 has a screw 27 near its eave side end.
It is fastened to the upper surface of the rafter 12 via.
【0023】このような構成に基づき、上記実施例の棟
構造によれば次のような作用及び効果が奏される。すな
わち、この実施例では上層屋根部2の棟納めを、棟金具
16及び上層棟カバー22等を使用して強固に構成して
あるため通常予想されるような条件下では風雨がこの上
層棟納め部分を通過して内側に浸入するようなことは無
いが、不測の事態により棟カバー22や棟金具16等の
一部が破壊され、あるいは施工不良により内部に雨水が
浸入するようなことがあっても、この雨水は下層屋根部
1の上面に形成された排水空間3を介して確実に外部へ
と排出され、屋内にまで浸入するようなことはない。Based on this configuration, the ridge structure of the above embodiment provides the following functions and effects. That is, in this embodiment, the ridge of the upper roof part 2 is strongly constructed using the ridge fittings 16 and the upper ridge cover 22, so that under normally expected conditions, wind and rain will not damage the upper ridge. Although there is no chance of rainwater infiltrating the inside through the parts, there is a possibility that some parts of the ridge cover 22, ridge fittings 16, etc. may be destroyed due to unforeseen circumstances, or rainwater may infiltrate inside due to poor construction. However, this rainwater is reliably discharged to the outside through the drainage space 3 formed on the upper surface of the lower roof part 1, and does not infiltrate indoors.
【0024】詳細には、もし上層屋根部2の棟部分から
雨水が浸入した場合、この雨水は下層の棟カバー26を
介して両軒側方向へと導かれ、棟カバー26の軒側端部
から下葺き屋根板材7の上面へと滴下する。この雨水は
、さらに屋根板材7の底面部7bに沿って軒方向へと流
れ、最終的には屋根の軒側端部から外部に排出されるこ
とになる。また、軒側から棟側へと強い風雨が作用して
排水空間3の雨水が棟方向へと吹き上げるようなことが
あっても、下葺き屋根板材7の棟側端部に形成した起立
部7cを介して、この雨水が屋内側へと回り込むのが防
止される。さらに、この場合棟カバー26の下面には下
葺き屋根板材7の突条部7aの高さに等しい空間が形成
されているので、毛管現象による雨水の吸い込みを起こ
すこともない。よって、万が一の場合にも二重葺き屋根
に相応しい優れた耐候性が発揮されるのである。Specifically, if rainwater enters from the ridge part of the upper roof part 2, this rainwater is guided toward both eaves sides through the lower ridge cover 26, and the rainwater enters the eave side end of the ridge cover 26. It drips onto the upper surface of the under-thatched roof board material 7. This rainwater further flows toward the eaves along the bottom surface 7b of the roof board material 7, and is finally discharged to the outside from the eave side end of the roof. In addition, even if strong wind and rain acts from the eaves side to the ridge side and rainwater in the drainage space 3 blows up toward the ridge, the raised portion 7c formed at the ridge side end of the under-thatched roof board material 7 This prevents this rainwater from leaking indoors. Furthermore, in this case, since a space equal to the height of the protrusion 7a of the under-thatched roof board 7 is formed on the lower surface of the ridge cover 26, rainwater will not be sucked in due to capillary action. Therefore, even in the unlikely event of an emergency, it will exhibit the excellent weather resistance that befits a double-roofed roof.
【0025】次に、本発明の他の実施例を図5以下に示
す。図5は上層屋根部2をスレート屋根材30にて構成
した例である。スレート屋根材30は下葺き屋根板材7
の上面にて軒側から棟側へと葺き上げられ、棟部にはそ
の両屋根面の最終段のものの間に棟金具16及び上層棟
カバー22が取り付けられている。Next, another embodiment of the present invention is shown in FIG. 5 and below. FIG. 5 shows an example in which the upper roof part 2 is made of slate roofing material 30. The slate roofing material 30 is the underlayment roofing board material 7
The roof is raised from the eave side to the ridge side on the upper surface, and a ridge metal fitting 16 and an upper ridge cover 22 are attached to the ridge between the final tiers of both roof surfaces.
【0026】また、下層の棟カバー26は、その両端に
折り返し部26aが形成され、この折り返し部26aの
近傍部分にてビス27を介して下葺き屋根板材7の上面
(図3の突条部7a)に固定されている。この場合も、
棟カバー26の折り返し部26aが下葺き屋根板材7の
起立部7cよりも軒側に位置するように設定されている
ことは第一の実施例と変わらない。Further, the lower ridge cover 26 has a folded part 26a formed at both ends thereof, and the upper surface of the under-thatching roof board 7 (the protruding part in FIG. 7a). In this case too,
It is the same as in the first embodiment that the folded portion 26a of the ridge cover 26 is positioned closer to the eaves than the upright portion 7c of the under-thatched roof board 7.
【0027】図8と図9は図5の屋根構造の縦断面を示
したもので、それぞれ垂木12による連接部分と屋根板
材7相互の連接部分の詳細を示している。図1に示した
第一の実施例では垂木12を下葺き屋根板材7の突条部
7aの上に載置した構造となっているが、この実施例で
は図8に示したように棟方向に隣接する屋根板材7の間
に位置するように設けてある。この垂木12は図示しな
い母屋材あるいは内装材の上面に配置される略U字形の
保持部材31の上に嵌装された状態でビスあるいは釘等
の固定具32により固定される。形状としては両側の側
面途中部分をいったん立ちあげて凹溝部12aが形成さ
れており、この凹溝部12aに屋根板材7の端部垂下面
7dを挿入することにより互いに連接する構造となって
いる。このようにして屋根板材7と連接した状態で、垂
木12の上面は屋根板材突条部7aの上面と同一面を構
成するようになっている。このような構造としたことか
ら、垂木12と屋根板材7との接続部分に雨水等が冠水
したとしても、この水は垂木凹溝部12aにて捕捉され
、そのまま軒方向へと流れ落ちるので室内への漏水は確
実に防止される。FIGS. 8 and 9 are longitudinal cross-sectional views of the roof structure shown in FIG. 5, showing details of the connecting portions by the rafters 12 and the connecting portions between the roof panels 7, respectively. In the first embodiment shown in FIG. 1, the rafters 12 are placed on the protrusions 7a of the under-thatching roof board material 7, but in this embodiment, as shown in FIG. It is provided so as to be located between adjacent roof panels 7. The rafter 12 is fitted onto a substantially U-shaped holding member 31 disposed on the upper surface of a main building material or an interior material (not shown) and is fixed with a fixing member 32 such as a screw or nail. As for the shape, a concave groove part 12a is formed by raising the midway portions of both sides, and by inserting the end hanging surface 7d of the roof board material 7 into this concave groove part 12a, the structure is such that they are connected to each other. In this manner, in a state in which the rafter 12 is connected to the roof board material 7, the upper surface of the rafter 12 forms the same surface as the upper surface of the roof board material protrusion portion 7a. With this structure, even if rainwater floods the connection between the rafters 12 and the roof board 7, this water will be captured in the rafter grooves 12a and flow down toward the eaves, preventing it from entering the room. Water leakage is reliably prevented.
【0028】一方、屋根板材7どうしの連接構造は図9
に示したように相互に隣接する屋根板材7の突条部7a
ないし底面部7bを部分的に重合させた構成となってい
る。なお、下葺き屋根板材7としては図10に示したよ
うに曲面状の波形断面形状からなるものを適用すること
もできる。On the other hand, the connection structure between the roof panels 7 is shown in FIG.
As shown in FIG.
It has a structure in which the bottom surface portion 7b is partially polymerized. In addition, as the under-thatching roof board material 7, a material having a curved wavy cross-sectional shape as shown in FIG. 10 can also be used.
【0029】次に、図6の棟構造について説明すると、
これは最終段の上葺き屋根板材13よりも棟側の部分と
下層棟カバー26の上面部分とにそれぞれバックアップ
材33,34を配置すると共に、これらバックアップ材
33,34を覆うように左右分割構成の板金製の上層棟
カバー35を被着したものである。各棟カバー35はそ
の軒側の係合端部35aが最終段屋根板材13の棟側係
合部13aに係合固定される。また、棟側端部は棟芯部
にて立ち上がるように形成された結合面部35bを左右
のものを相互に突き合わした状態で曲げ加工を施すこと
により結合される。下層棟カバー26の構成については
図5のものと同様であるが、この実施例によればその上
面にバックアップ材34が設けられているので、強風圧
等が作用したときの耐荷重強度が向上する。Next, the ridge structure shown in FIG. 6 will be explained.
This has back-up materials 33 and 34 placed on the ridge side of the final tier upper roof board material 13 and on the upper surface of the lower ridge cover 26, respectively, and is configured to be divided into left and right parts so as to cover these backup materials 33 and 34. It is covered with an upper ridge cover 35 made of sheet metal. Each ridge cover 35 has its eaves-side engaging end 35a engaged with and fixed to the ridge-side engaging portion 13a of the final roof plate material 13. Further, the ridge side end portions are joined by bending the joining surface portions 35b, which are formed to stand up at the ridge core portion, with the left and right portions butted against each other. The structure of the lower ridge cover 26 is the same as that in FIG. 5, but according to this embodiment, a backup material 34 is provided on the upper surface, so that the load-bearing strength when strong wind pressure etc. acts is improved. do.
【0030】また、図7に示したものは上層棟カバー2
2の構成としては図1ないし図5に示したものとほぼ同
様であるが、下層棟カバー26の折り返し部26aの内
側にL字形断面形状の面戸36を挟持した点で異なる。
この面戸36は、下葺き屋根板材7(底面部7b)の上
面に棟方向に沿った遮断面を形成するもので、この遮断
面により軒側から風圧が作用したときの棟方向への雨水
の吹き上げが防止されるので、棟部分の耐候性が一層向
上する。Furthermore, the one shown in FIG. 7 is the upper building cover 2.
The structure of 2 is almost the same as that shown in FIGS. 1 to 5, but differs in that a side door 36 having an L-shaped cross section is sandwiched inside the folded portion 26a of the lower ridge cover 26. This door 36 forms a blocking surface along the ridge direction on the upper surface of the under-thatched roof board material 7 (bottom part 7b), and this blocking surface prevents rainwater from flowing toward the ridge when wind pressure is applied from the eaves side. This prevents the air from blowing up, further improving the weather resistance of the ridge.
【0031】ところで、上記の各実施例はいずれも屋根
の棟構造の例であるが、本発明はこれに限らず、当然に
屋根の下り棟構造としても適用することができる。図1
1は図1に示した二重葺き屋根の下り棟部分の構造を示
しており、図示したように下り棟においても相互に隣接
する下層屋根部1の境界部分には間隙が生じるので、こ
の間隙を覆うように下層棟カバー26を設けることによ
り大幅に耐候性の向上を図ることができる。なお、屋根
の構成部材としては図1と同様であるので、互いに対応
する部分には同一の符号を付して示してある。By the way, although each of the above-mentioned embodiments is an example of a roof ridge structure, the present invention is not limited to this, and can of course be applied to a roof ridge structure. Figure 1
1 shows the structure of the descending ridge part of the double roof shown in Figure 1.As shown in the figure, even in the descending ridge, a gap is created at the boundary between the adjacent lower roof parts 1, so this gap is By providing the lower ridge cover 26 to cover the lower ridge cover 26, weather resistance can be greatly improved. Note that since the constituent members of the roof are the same as those in FIG. 1, corresponding parts are designated with the same reference numerals.
【0032】[0032]
【発明の効果】本発明によれば、上層屋根部と下層屋根
部との間に排水空間を形成した二重葺き屋根構造におい
て、屋根の棟芯部にて互いに対向する下葺き屋根板材の
棟側端部を上方に立ち上げて棟方向に沿った起立面を形
成し、下葺き屋根板材の棟側端部を被覆する棟カバーを
、該カバーの軒側端部が前記起立面よりも軒先方向に延
出するように設けて、棟芯部を挟んで互いに対向する下
葺き屋根板材の間隙部分を覆うことにより該間隙部分へ
の雨水の浸入経路を遮断するようにしたので、風圧によ
り棟内部に雨水が吹き込んだり、上層屋根部の棟納めに
施工不良があったり、台風等の悪天候時に上昇屋根部の
棟納めが部分的に破損するような状況となっても、室内
にまで雨水が浸入して漏水に至るようなことがない。Effects of the Invention According to the present invention, in a double roof structure in which a drainage space is formed between an upper roof portion and a lower roof portion, the ridges of the under-thatched roofing sheets facing each other at the ridge core of the roof are fixed. A ridge cover whose side edges are raised upward to form an upright surface along the ridge direction and which covers the ridge side end of the under-roofing roofing board material is provided so that the eave side end of the cover is closer to the eaves than the upright surface. By covering the gap between the underlying roofing sheets facing each other across the ridge core, the path for rainwater to enter the gap is blocked. Even if rainwater blows into the interior, there is poor construction of the ridge of the upper roof, or the ridge of the rising roof is partially damaged during bad weather such as a typhoon, rainwater will not leak into the room. There is no possibility of water infiltration leading to leakage.
【0033】また、下層屋根部の棟カバー下面には、下
葺き屋根板材の起立部の高さに略等しい空間が確保され
るので、毛管現象による雨水の吸い込みを起こす不具合
も起こらない。したがってまた、上層屋根部にタイルや
天然スレートのような屋根材を適用した構造においても
、極めて耐候性の良い棟構造及び下り棟構造とすること
ができる。[0033] Furthermore, since a space is secured on the lower surface of the ridge cover of the lower roof portion, which is approximately equal in height to the height of the upright portion of the under-thatched roof board, problems such as rainwater being sucked in due to capillary action do not occur. Therefore, even in a structure in which a roofing material such as tiles or natural slate is applied to the upper roof part, a ridge structure and a descending ridge structure with extremely good weather resistance can be obtained.
【0034】また、本発明において棟カバーないし下り
棟カバーの先端部に面戸を備えた場合には、該面戸によ
り棟カバー端部から下吹き屋根板材の棟側端部方向への
雨水の浸入がより一層確実に防止されるので、さらに優
れた耐候性が発揮される。Further, in the present invention, when a side door is provided at the tip of the ridge cover or descending ridge cover, the side door prevents rainwater from flowing from the edge of the ridge cover toward the ridge side end of the bottom-blown roof board. Since infiltration is more reliably prevented, even better weather resistance is exhibited.
【図1】本発明による二重葺き屋根の棟構造の第1の実
施例を示す正面断面図。FIG. 1 is a front sectional view showing a first embodiment of a double roof ridge structure according to the present invention.
【図2】前記実施例の要部縦断面図。FIG. 2 is a vertical sectional view of the main part of the embodiment.
【図3】前記実施例に適用可能な下葺き屋根板材の一例
を示す要部斜視図。FIG. 3 is a perspective view of essential parts showing an example of an under-thatching roof sheet material applicable to the embodiment.
【図4】同じく屋根板材の他の例を示す要部斜視図。FIG. 4 is a perspective view of a main part showing another example of the roof sheet material.
【図5】本発明による二重葺き屋根の棟構造の第2の実
施例を示す正面断面図。FIG. 5 is a front sectional view showing a second embodiment of the double roof ridge structure according to the present invention.
【図6】同じく第3の実施例を示す正面断面図。FIG. 6 is a front sectional view showing the third embodiment.
【図7】同じく第4の実施例を示す正面断面図。FIG. 7 is a front sectional view showing the fourth embodiment.
【図8】前記各実施例の側面断面構造の一例を示す縦断
面図。FIG. 8 is a vertical cross-sectional view showing an example of the side cross-sectional structure of each of the embodiments.
【図9】同じく側面断面構造の他の例を示す縦断面図。FIG. 9 is a vertical cross-sectional view showing another example of the side cross-sectional structure.
【図10】同じく側面断面構造の他の例を示す縦断面図
。FIG. 10 is a longitudinal cross-sectional view showing another example of the side cross-sectional structure.
【図11】本発明による二重葺き屋根の棟構造を下り棟
部分に適用した実施例を示す正面断面図。FIG. 11 is a front sectional view showing an embodiment in which the ridge structure of a double roof according to the present invention is applied to a descending ridge portion.
1…下層屋根部、2…上層屋根部、3…排水空間、4…
下地部、5…内層材、6…アスファルト層、7…下葺き
屋根板材、7a…突条部、7c…起立部、8…固定金具
、9…金具固定ボルト、10…ナット、11…垂木固定
金具、12…垂木、13…屋根板材、14…バツクアッ
プ材、15…吊子金具、16…棟金具、17…ビス、1
8…上葺き屋根板材、20…棟木、22…上層の棟カバ
ー、24…棟キャップ、26…下層の棟カバー。1...Lower roof part, 2...Upper roof part, 3...Drainage space, 4...
Base part, 5... Inner layer material, 6... Asphalt layer, 7... Under-thatching roof board material, 7a... Protrusion part, 7c... Standing part, 8... Fixing metal fittings, 9... Metal fitting fixing bolts, 10... Nuts, 11... Rafter fixing Metal fittings, 12... Rafters, 13... Roofing board materials, 14... Back-up materials, 15... Hanging metal fittings, 16... Ridge fittings, 17... Screws, 1
8... Roof board material, 20... Purlin, 22... Upper layer ridge cover, 24... Ridge cap, 26... Lower layer ridge cover.
Claims (2)
との間に排水空間を形成した二重葺き屋根構造において
、屋根の棟芯部にて互いに対向する下葺き屋根板材の棟
側端部を上方に立ち上げて棟方向に沿った起立面を形成
し、下葺き屋根板材の棟側端部を被覆する棟カバーを、
該カバーの軒側端部が前記起立面よりも軒先方向に延出
するように設けたことを特徴とする二重葺き屋根の棟構
造。Claim 1: In a double-roofed roof structure in which a drainage space is formed between an upper roof part on the surface side and a lower roof part on the inner side, ridges of under-thatched roofing sheets facing each other at the ridge core of the roof. A ridge cover that raises the side edges upward to form an upright surface along the ridge direction and covers the ridge side edges of the under-thatched roofing board material.
A ridge structure of a double-thatched roof, characterized in that the eave-side end of the cover extends further toward the eaves than the upright surface.
き屋根板材の上面に棟方向に沿った遮断面を形成する面
戸が備えられることを特徴とする請求項1に記載の二重
葺き屋根の棟構造。2. The ridge cover of the lower roof portion is provided at both ends with side doors that form a blocking surface along the ridge direction on the upper surface of the under-thatched roof board material. A ridge structure with a double roof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2412911A JPH07122309B2 (en) | 1990-12-25 | 1990-12-25 | Double ridge structure with double thatched roof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2412911A JPH07122309B2 (en) | 1990-12-25 | 1990-12-25 | Double ridge structure with double thatched roof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04222749A true JPH04222749A (en) | 1992-08-12 |
JPH07122309B2 JPH07122309B2 (en) | 1995-12-25 |
Family
ID=18521651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2412911A Expired - Fee Related JPH07122309B2 (en) | 1990-12-25 | 1990-12-25 | Double ridge structure with double thatched roof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07122309B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6280924U (en) * | 1985-11-12 | 1987-05-23 | ||
JPS6381123U (en) * | 1986-11-17 | 1988-05-28 |
-
1990
- 1990-12-25 JP JP2412911A patent/JPH07122309B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6280924U (en) * | 1985-11-12 | 1987-05-23 | ||
JPS6381123U (en) * | 1986-11-17 | 1988-05-28 |
Also Published As
Publication number | Publication date |
---|---|
JPH07122309B2 (en) | 1995-12-25 |
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