JP2005089964A - Water leakage prevention structure of underroof thatching material - Google Patents

Water leakage prevention structure of underroof thatching material Download PDF

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JP2005089964A
JP2005089964A JP2003320320A JP2003320320A JP2005089964A JP 2005089964 A JP2005089964 A JP 2005089964A JP 2003320320 A JP2003320320 A JP 2003320320A JP 2003320320 A JP2003320320 A JP 2003320320A JP 2005089964 A JP2005089964 A JP 2005089964A
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roof
water leakage
staple
underroof
adhesive tape
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Wataru Tanigawa
亘 谷川
Shoichi Ito
省一 伊東
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a water leakage prevention structure of an underroof thatching material capable of securely preventing water leakage even if strong rain or severe rain falls onto an underroof thatching material fixed by staples before the material on the roof such as roof tiles is laid on the rooftiles or the like. <P>SOLUTION: An underroof thatching materials 3 are superimposed on each other while setting the eaves side downward and setting the ridge side upward and the superimposed part 4 is fixed by a staple 5 to form the water leakage prevention structure. A double sided adhesive tape 7 is adhesively interposed between the substrate boards 6 in the position K where the staple 5 is driven and the underroof thatching material 3 facing the boards to enclose water sticking to the staple without diffusion so as not to infiltrate to the substrate board. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、屋根下葺材の施工後、瓦等の屋根上葺材を施工する前に降雨があった場合でもステープル穴からの漏水を確実に防止できるようにした屋根下葺材の漏水防止構造に関するものである。   The present invention relates to a structure for preventing leakage of roof underlaying material that can reliably prevent leakage from staple holes even when there is rainfall after construction of roofing roofing material such as tiles after construction of roofing underlayment. It is.

屋根下葺材は防水を目的として貼るものであり、勾配屋根の軒先側から棟側へ順次重ね部を作りながら貼り、その重ね部にステープルを打ち込んで下地板に固定する。前記ステープルの数は、５０坪の屋根面積の場合において約３０００本にもおよぶ。その数だけ屋根下葺材に穴をあける結果となり、その分、防水性を阻害することとなるが、瓦等の上葺材を施工した後、たとえ屋根下葺材に雨水がまわり込んでも、雨水は「流れ（フロー）」の状態となるために表面張力との関係もあってステープル穴からの漏水は実験的にも殆ど認められない。   The roof underlaying material is applied for the purpose of waterproofing, and is applied while making overlapping portions sequentially from the eaves side of the sloped roof to the ridge side, and staples are driven into the overlapping portions and fixed to the base plate. The number of staples reaches about 3000 in the case of a roof area of 50 tsubo. As a result, the number of holes in the roof underfloor will be perforated, and this will impair the waterproofing. Since it is in a “flow” state, water leakage from the staple holes is hardly observed experimentally due to the relationship with the surface tension.

たとえば、瓦等の上葺材を施工する前に降雨があった場合には、ステープル穴からの漏水事故の可能性が指摘されていた。尤も、屋根下葺材として用いられるアスファルトルーフィングは、紙にアスファルト又はピッチを含浸させてなるアスファルトフェルトを芯材とし、その両面にフィラーを混入したブローンアスファルトを塗布してなるため、アスファルト自身の疎水性と粘弾性とにより高いシール性を発揮し、少々の降雨では漏水問題は生じないことが確認されている。   For example, if there was rain before the construction of the upper roof material such as roof tiles, the possibility of a water leakage accident from the staple hole was pointed out. However, asphalt roofing used as roofing materials for roofs is made of asphalt felt made by impregnating paper with asphalt or pitch and coated with blown asphalt mixed with filler on both sides, so the hydrophobicity of asphalt itself It has been confirmed that it exhibits a high sealing performance due to its elasticity and viscoelasticity, and that even a little rain does not cause a water leakage problem.

問題になるのは、強い雨（２０ｍｍ／Ｈ程度）や激しい雨（５０ｍｍ／Ｈ程度）があった場合である。このような強い雨や激しい雨にあった場合には、前記ステープル穴からの漏水はあり得たが、本発明者は種々の実験を重ねた結果、確実に漏水を防止できる屋根下葺材の漏水防止構造を先に提案した（特許第３０８８６９３号参照）。   The problem is when there is heavy rain (about 20 mm / H) or heavy rain (about 50 mm / H). In such heavy rain and heavy rain, water leakage from the staple hole may have occurred, but the present inventor has conducted various experiments, and as a result, the water leakage of the roof underlaying material that can reliably prevent water leakage. A prevention structure has been proposed previously (see Japanese Patent No. 3088693).

上記特許第３０８８６９３号公報により提案した構造は、屋根下葺材をステープル止めする下地板上の、ステープルを打ち込む個所に、上面に撥水処理を施した粘着テープを貼り、ステープルに付着した水分がステープルを伝ってこようとも粘着テープの上面の溌水処理層においてはじき返して下地板側に侵入することがないようにしたものである。
特許第３０８８６９３号公報 In the structure proposed by the above-mentioned Japanese Patent No. 3088693, an adhesive tape having a water-repellent treatment applied on the upper surface of a base plate for stapling the roof underlaying material is applied with a water-repellent treatment on the upper surface, and the moisture adhering to the staple is stapled. In this case, the water-repellent treatment layer on the upper surface of the adhesive tape is repelled so as not to enter the base plate side.
Japanese Patent No. 3088693

しかしながら、強い雨や激しい雨にあった場合、粘着テープの上面の溌水処理層においてはじき返して下地板側に吸引されないようにすることはもとより有効であるが、本発明者はさらに研究の結果、ステープルを伝って来る水分を拡散させないように極めて限られた範囲内に閉じ込めてしまうことによって下地板側に吸引されないようにすることを新たに見出した。   However, in the case of heavy rain or heavy rain, it is effective to prevent repelling in the submerged treatment layer on the top surface of the adhesive tape and not being sucked to the base plate side. It has been newly found out that the moisture coming through the staples is confined within a very limited range so as not to be diffused so that it is not sucked to the base plate side.

本発明は、上記見出したことに鑑み創出したもので、瓦等の上葺材を施工する前に、ステープル止めした屋根下葺材の上に強い雨や激しい雨があったとしても、確実に漏水を防止できる新たな屋根下葺材の漏水防止構造を提供することを目的としている。   The present invention was created in view of the above finding, and even if there is heavy rain or heavy rain on the stapled roofing roof material before constructing the roofing material such as tiles, water leakage is ensured. The object is to provide a new structure for preventing leakage of roof underfloor material that can be prevented.


上記の目的を達成するため、本発明は、勾配屋根の軒先側を下、棟側を上にして屋根下葺材を重ね、その重ね部をステープル止めする屋根下葺材の漏水防止構造において、前記ステープルを打ち込む個所の下地板と、これに面した屋根下葺材との間に、両面粘着テープを両者に粘着させるように介装したことを特徴とするものである。
To achieve the above object, according to the present invention, there is provided a water leakage prevention structure for a roof underlaying material in which the roof roofing material is stacked with the eaves side of the sloped roof down and the ridge side up, and the overlapping portion is stapled. It is characterized in that a double-sided adhesive tape is interposed between the base plate at the place where the metal is to be driven and the roof underlaying material facing the base plate so as to adhere to both.

また、請求項２に記載の発明は、前記両面粘着テープの粘着層が、ブチルゴム、天然ゴム、ＳＢＳ、ＳＩＳ、ポリウレタン、ポリイソブチレン、アクリル、ＥＶＡの一種、又は二種以上の配合品、或いはこれらとアスファルトとの配合品であることを特徴とするものである。   Further, in the invention according to claim 2, the adhesive layer of the double-sided adhesive tape is a butyl rubber, natural rubber, SBS, SIS, polyurethane, polyisobutylene, acrylic, EVA, or a combination of two or more thereof, or these And asphalt.

本発明は、勾配屋根の軒先側を下、棟側を上にして屋根下葺材を重ね、その重ね部をステープル止めする屋根下葺材の漏水防止構造において、前記ステープルを打ち込む個所の下地板と、これに面した屋根下葺材との間に、両面粘着テープを両者に粘着させるように介装したことを特徴としているから、ステープルに付着して侵入しようとする水分は該ステープルが打ち込まれている屋根下葺材と両面粘着テープとの粘着面にて拡散せずに閉じ込められ、下地板側に侵入することがないという優れた効果を奏するものである。   The present invention relates to a water leakage prevention structure for a roof underarm with the roof eaves facing down on the eaves side of the sloped roof, with the ridge side up, and stapling the overlapped portion, and the base plate of the place where the staple is driven, Since it is characterized by interposing a double-sided adhesive tape between the roof and the underfloor facing this, both the staples are driven into the moisture that adheres to and enters the staples. It has an excellent effect that it is confined without being diffused by the adhesive surface between the roof underlaying material and the double-sided adhesive tape and does not enter the base plate side.

また、請求項２に記載の発明は、両面粘着テープの粘着層に使用したブチルゴム、天然ゴム、ＳＢＳ、ＳＩＳ、ポリウレタン、ポリイソブチレン、アクリル、ＥＶＡの一種、又は二種以上の配合品、或いはこれらとアスファルトとの配合品は、いずれも打ち込まれたステープルの周囲にまつわり付き、ステープル自身に高いシール性能を付与し、漏水防止効果をより高めるという優れた効果を奏するものである。   The invention according to claim 2 is a butyl rubber, natural rubber, SBS, SIS, polyurethane, polyisobutylene, acrylic, EVA, or a combination of two or more kinds used in the adhesive layer of the double-sided adhesive tape, or these Each of the blended products of asphalt has an excellent effect of sticking around the staples that have been driven in, imparting high sealing performance to the staples themselves, and further improving the water leakage prevention effect.

次に、本発明の実施の最良の形態を添付図面に基づいて説明する。図１は本願構造を略示的に示す断面図、図２は本願構造の要部の拡大断面図、図３は勾配屋根の上面のステープル打ち込み個所を画定し、その個所に予め両面粘着テープの一面を貼った状態を示す斜視図である。   Next, the best mode for carrying out the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view schematically showing the structure of the present application, FIG. 2 is an enlarged cross-sectional view of an essential part of the structure of the present application, and FIG. 3 defines a staple driving position on the upper surface of the sloped roof. It is a perspective view which shows the state which stuck one surface.

図において、本願構造１は、図１の如く、勾配屋根２の軒先側Ａを下、棟側Ｂを上にして屋根下葺材３、３を重ね、その重ね部４をステープル５で止めるに際し、前記ステープル５を打ち込む個所（重ね部４）の下地板６と、これに面した屋根下葺材３との間に、両面粘着テープ７を両者に粘着するように介装したものである。   In the figure, as shown in FIG. 1, the structure 1 of the present application is overlapped with the roof roofing materials 3 and 3 with the eaves side A of the sloped roof 2 facing down and the ridge side B facing up, and the overlapping portion 4 is stopped with the staple 5. A double-sided pressure-sensitive adhesive tape 7 is interposed between the base plate 6 where the staple 5 is to be driven (the overlapping portion 4) and the roof underlaying material 3 facing the base plate 6 so as to adhere to both.

前記ステープルを打ち込む個所の下地板６とこれに面した屋根下葺材３との間に介装した両面粘着テープ７は、図２の如く、その一面の粘着層８により屋根下葺材３と、また、他面の粘着層９により下地板６と、それぞれ密着一体化している。換言すれば、下地板６とこれに面した屋根下葺材３とは両面粘着テープ７を介して確実に粘着されている。   As shown in FIG. 2, the double-sided adhesive tape 7 interposed between the base plate 6 where the staples are to be placed and the roof underside material 3 facing the same is attached to the roof underside material 3 by the adhesive layer 8 on one side as shown in FIG. The base plate 6 is tightly integrated with the adhesive layer 9 on the other side. In other words, the base plate 6 and the roof underlaying material 3 facing the base plate 6 are securely adhered via the double-sided adhesive tape 7.

前記両面粘着テープ７は１００ｍｍ幅位のものが適当である。そして一つの粘着面に粘着防止のための剥離紙を添えてロール状の巻玉としておくと施工手順上扱い易い。前記粘着層８、９としてはブチルゴム、天然ゴム、ＳＢＳ、ＳＩＳ、ポリウレタン、ポリイソブチレン、アクリル、ＥＶＡの一種、又は二種以上の配合品、或いはこれらとアスファルトとの配合品で構成するとよい。即ち、これらは粘着機能を有していることは勿論、打ち込まれたステープルの周囲にまつわり付いてステープル自身に高いシール性能を付与する機能、即ち、ステープル穴のシール性をも向上させる機能を有している。   The double-sided adhesive tape 7 is suitably about 100 mm wide. And if it attaches the release paper for adhesion prevention to one adhesive surface and it is set as a roll-shaped roll ball, it will be easy to handle on the construction procedure. The adhesive layers 8 and 9 may be composed of one or more of butyl rubber, natural rubber, SBS, SIS, polyurethane, polyisobutylene, acrylic, EVA, or a blend of these with asphalt. In other words, they have an adhesive function, as well as a function that wraps around the staples that have been driven in to impart high sealing performance to the staples themselves, that is, a function that improves the sealing performance of the staple holes. Have.

次に、本願構造１を構成させる手順について説明する。先ず、勾配屋根２の軒先側Ａを下、棟側Ｂを上にして屋根下葺材３、３を重ね、その重ね部４をステープル５で止めるためのステープル打ち込み個所Ｋを画定する（図３の一点鎖線参照）。この個所Ｋは使用する屋根下葺材３の寸法と、使用する両面粘着テープ７の幅とを考慮すれば容易に画定できるものである。   Next, a procedure for configuring the present structure 1 will be described. First, the eaves side A of the sloped roof 2 is on the bottom, the ridge side B is on the top, the roof underlaying materials 3 and 3 are overlapped, and a staple driving portion K for stopping the overlapped portion 4 with the staple 5 is defined (FIG. 3). (See dashed line). This location K can be easily defined in consideration of the dimensions of the roof covering 3 used and the width of the double-sided adhesive tape 7 used.

次に、画定したステープル打ち込み個所Ｋの下地板６上に、図３に帯状の点模様として示したように両面粘着テープ７を貼って上面の剥離紙を剥がしながら屋根下葺材３を軒先側から棟側に一定（ほぼ１０ｃｍ程度）の重ね部４を取って敷いて行き、軒先側から重ね部４にハンマータッカーを使ってステープル５を打ち込んで下地板６に止めることにより本願構造１が完成することとなる。本願構造の場合、下地板６と屋根下葺材３との間を粘着させる両面粘着テープ７の使用によりハンマータッカーによるステープル５の打ち込み数を可及的に減縮することが可能である。   Next, a double-sided adhesive tape 7 is applied on the base plate 6 of the defined staple driving location K as shown in FIG. A fixed (approximately 10 cm) overlapped portion 4 is taken and laid on the ridge side, and staples 5 are driven into the overlapped portion 4 from the eaves end side using a hammer tacker and stopped to the base plate 6 to complete the present structure 1. It will be. In the case of the structure of the present application, the number of staples 5 driven by the hammer tacker can be reduced as much as possible by using a double-sided pressure-sensitive adhesive tape 7 for adhering between the base plate 6 and the roof covering 3.

いま、市販の２２キロのアスファルトルーフィングを、２ｍ2 の大きさに切断し、該アスファルトルーフィングを、次の仕様の３種の下地板の上面に５０本のステープルを打ち込んで敷設した。
１．ステープルを打ち込む上面の個所にブチルゴムを粘着層に用いた両面粘着テープを貼 った下地板
２．ステープルを打ち込む上面の個所に市販のガムテープ（表面が溌水性）を貼った下地 板
３．ステープルを打ち込む上面の個所に何も貼らなかった下地板 Now, a commercially available 22 kg asphalt roofing was cut into a size of 2 m 2 , and the asphalt roofing was laid by placing 50 staples on the upper surface of three kinds of base plates of the following specifications.
1. 1. Base plate with double-sided adhesive tape using butyl rubber as the adhesive layer on the top surface where staples are to be placed 2. A base plate on which a commercially available gum tape (surface is water-repellent) is pasted on the upper surface where the staples are driven. A base plate with nothing stuck on the top of the staple

上記の如く、下地板にアスファルトルーフィングを敷設しものを、通常の屋根の傾斜角（勾配４．５寸）に設置し、アスファルトルーフィング面に２４時間散水し、漏水試験を行い、漏水個所を調べたところ、次表の結果を得た。
表
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
散水量 １〜２ｍｍ／Ｈ ２０ｍｍ／Ｈ ５０ｍｍ／Ｈ
（しとしと雨） （強い雨） （激しい雨）
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
仕様１（本願例） ０／５０ ０／５０ ０／５０
仕様２（比較例） ０／５０ ０／５０ ２／５０
仕様３（比較例） ０／５０ １４／５０ ４３／５０
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−− As described above, asphalt roofing is laid on the base plate, installed at a normal roof inclination angle (4.5 inch slope), sprinkled on the asphalt roofing surface for 24 hours, water leakage test is conducted, and the location of water leakage is examined. As a result, the results in the following table were obtained.
Table ---------------------------------
Sprinkling amount 1-2mm / H 20mm / H 50mm / H
(Shitoshi and rain) (Strong rain) (Heavy rain)
---------------------------------
Specification 1 (example) 0/50 0/50 0/50
Specification 2 (Comparative Example) 0/50 0/50 2/50
Specification 3 (comparative example) 0/50 14/50 43/50
---------------------------------

上表の結果、上面にブチルゴムを粘着層に用いた両面粘着テープ７を貼った仕様１の下地板に、屋根下葺材２をステープル止めした場合には、激しい雨に相当する５０ｍｍ／Ｈで散水してもステープル穴からの漏水は全くなかった。これに対して、表面に撥水性のある市販のガムテープを貼った仕様２の下地板に、屋根下葺材３をステープル止めした場合には、激しい雨に相当する５０ｍｍ／Ｈでの散水ではステープル穴からの漏水は２個所だけ見つかったが、総じてステープル穴からの漏水は生じなかった。さらに、何も貼らなかった仕様３の下地板に、屋根下葺材３をステープル止めした場合には、しとしと雨に相当する１〜２ｍｍ／Ｈで散水したときはステープル穴からの漏水は全く生じなかったが、強い雨に相当する２０ｍｍ／Ｈでの散水ではステープル穴からの漏水が１４個所、激しい雨に相当する５０ｍｍ／Ｈでの散水ではステープル穴からの漏水は４３個所に及んだことが判る。   As a result of the above table, when the roof underlaying material 2 is stapled to the base plate of the specification 1 with the double-sided adhesive tape 7 using butyl rubber as the adhesive layer on the upper surface, watering is performed at 50 mm / H corresponding to heavy rain. Even then, there was no water leakage from the staple holes. On the other hand, when the underfloor covering 3 is stapled on the base plate of the specification 2 with a commercially available gum tape having water repellency on the surface, the staple hole is sprayed by watering at 50 mm / H corresponding to heavy rain. However, leaks from the staple holes generally did not occur. Furthermore, when the roof underlaying material 3 is stapled to the base plate of specification 3 on which nothing is pasted, water leakage from the staple hole does not occur at all when water is sprayed at 1 to 2 mm / H corresponding to rain. However, in the case of water spraying at 20 mm / H corresponding to heavy rain, 14 points leaked from the staple holes, and in case of water spraying at 50 mm / H corresponding to heavy rain, the water leaked from the staple holes reached 43 places. I understand.

本願構造を略示的に示す断面図である。It is sectional drawing which shows this application structure schematically. 本願構造の要部の拡大断面図である。It is an expanded sectional view of the important section of this application structure. 勾配屋根の上面のステープル打ち込み個所を画定し、その個所に予め両面粘着テープの一面を貼った状態を示す斜視図である。It is a perspective view which shows the state which demarcated the staple drive location of the upper surface of a sloped roof, and affixed one surface of the double-sided adhesive tape beforehand on the location.

符号の説明Explanation of symbols

１ 本願構造
２ 勾配屋根
３ 屋根下葺材
４ 重ね部
５ ステープル
６ 下地板
７ 両面粘着テープ
８ 一面の粘着層
９ 他面の粘着層
Ａ 軒先側
Ｂ 棟側 DESCRIPTION OF SYMBOLS 1 Structure of this application 2 Gradient roof 3 Roof covering material 4 Stack part 5 Staple 6 Base plate 7 Double-sided adhesive tape 8 Adhesive layer of one side 9 Adhesive layer of the other side A Eaves side B Building side

Claims (2)

勾配屋根の軒先側を下、棟側を上にして屋根下葺材を重ね、その重ね部をステープル止めする屋根下葺材の漏水防止構造において、前記ステープルを打ち込む個所の下地板と、これに面した屋根下葺材との間に、両面粘着テープを両者に粘着させるように介装したことを特徴とする屋根下葺材の漏水防止構造。   In the roof anti-leakage water leakage prevention structure in which the eaves side of the sloped roof is on the bottom and the ridge side is on the top, and the overlapped portion is stapled, the base plate of the place where the staples are driven faces the surface. A structure for preventing leakage of roof underlaying material, characterized in that a double-sided adhesive tape is interposed between the roof underlaying material and the both sides. 前記両面粘着テープの粘着層が、ブチルゴム、天然ゴム、ＳＢＳ、ＳＩＳ、ポリウレタン、ポリイソブチレン、アクリル、ＥＶＡの一種、又は二種以上の配合品、或いはこれらとアスファルトとの配合品であることを特徴とする請求項１に記載の屋根下葺材の漏水防止構造。   The pressure-sensitive adhesive layer of the double-sided pressure-sensitive adhesive tape is a butyl rubber, natural rubber, SBS, SIS, polyurethane, polyisobutylene, acrylic, EVA, or a combination of two or more thereof, or a combination of these with asphalt. The structure for preventing leakage of roof underlaying material according to claim 1.
JP2003320320A 2003-09-11 2003-09-11 Water leakage prevention structure of underroof thatching material Pending JP2005089964A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013141313A1 (en) * 2012-03-21 2013-09-26 凸版印刷株式会社 Heat-sensitive transfer recording medium, method for producing same, and heat-sensitive transfer recording method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013141313A1 (en) * 2012-03-21 2013-09-26 凸版印刷株式会社 Heat-sensitive transfer recording medium, method for producing same, and heat-sensitive transfer recording method
CN104203585A (en) * 2012-03-21 2014-12-10 凸版印刷株式会社 Heat-sensitive transfer recording medium, method for producing same, and heat-sensitive transfer recording method

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