JPH08170273A - Prime roofing material - Google Patents

Prime roofing material

Info

Publication number
JPH08170273A
JPH08170273A JP31194394A JP31194394A JPH08170273A JP H08170273 A JPH08170273 A JP H08170273A JP 31194394 A JP31194394 A JP 31194394A JP 31194394 A JP31194394 A JP 31194394A JP H08170273 A JPH08170273 A JP H08170273A
Authority
JP
Japan
Prior art keywords
layer
rubber
roofing
roofing material
roof
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.)
Withdrawn
Application number
JP31194394A
Other languages
Japanese (ja)
Inventor
Masakatsu Tamei
政克 為井
Toshiaki Kizu
寿朗 木津
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP31194394A priority Critical patent/JPH08170273A/en
Publication of JPH08170273A publication Critical patent/JPH08170273A/en
Withdrawn legal-status Critical Current

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Abstract

PURPOSE: To provide a prime roofing material with no possibility of impairing its waterproofness, thus securing sufficient waterproofness, with no relevant workers endangered during its application, and capable of improving its applicability. CONSTITUTION: This prime roofing material is so designed that a reinforcing layer 3 is sandwichedly provided between rubber layers 1 and 2 which can therefore be reinforced by the layer. As the layers 1, 2 are elastic, they are ensured not to develop any crack even if subjected to a load on the parts fixed with nails and/or tackers. And the nails and/or tackers can be brought into firm contact with the rubber layers 1, 2 to ensure any gap not to be developed. Firm contact of the rubber layer 2 bearing large frictional force with a roofing substrate enables the roofing material not to slip on the substrate, and relevant worker(s) can get and make a work on the rubber layer 1 bearing large frictional force and be ensured not to slip along the roofing material. Besides, correction of the roofing material's applied position can also be made easily.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、建築物の屋根下地材の
上に敷設される屋根下葺き材に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof underlaying material to be laid on a roof base material of a building.

【0002】[0002]

【従来の技術】家屋などの建築物の屋根は、コンパネや
合板等で形成される屋根下地材の上に防水性のあるシー
ト状の屋根下葺き材を敷設し、この屋根下葺き材の上に
瓦などの屋根材を葺いて構成されているが、上記屋根下
葺き材としては種々の構造を有するものが提案されてい
る。
2. Description of the Related Art A roof of a building such as a house is constructed by laying a waterproof sheet-like roofing underlaying material on a roofing base material formed of a control panel or plywood. The roofing material such as roof tiles is used as the roofing material, and various roofing materials have been proposed as the roofing material.

【0003】図3(a)にはクラフト紙や不織布にアス
ファルトを含浸させて基材層30とし、その表裏面に鉱
物質粉層10を設けて形成される、所謂アスファルトル
ーフィングと称される屋根下葺き材が、また図3(b)
には塩化ビニルシート11の裏面にターフェルト層12
を設けて形成される、所謂樹脂系ルーフィングと称され
る屋根下葺き材が、さらに図3(c)にはポリエチレン
製のシート14で形成される屋根下葺き材が、また図3
(d)にはゴムシートや樹脂シートを基材層30とし、
その裏面に粘着層31を設けると共に粘着層31の裏面
に離型紙などの剥離層13を設けて形成される屋根下葺
き材が、さらに図3(e)にはゴム製のシート15で形
成される屋根下葺き材がそれぞれ示してある。
In FIG. 3 (a), a so-called asphalt roofing roof is formed by forming a base material layer 30 by impregnating kraft paper or non-woven fabric with asphalt, and providing a mineral powder layer 10 on the front and back surfaces thereof. The underlaying material is also shown in Fig. 3 (b).
The backside of the vinyl chloride sheet 11 has a terfelt layer 12
3 is a roof underlaying material called a so-called resin-based roofing, and FIG. 3C shows a roofing underlaying material formed of a polyethylene sheet 14.
In (d), a rubber sheet or a resin sheet is used as the base material layer 30,
An under-roofing material formed by providing the adhesive layer 31 on the back surface and the release layer 13 such as release paper on the back surface of the adhesive layer 31 is further formed by the rubber sheet 15 in FIG. 3 (e). The roofing materials for the roof are shown.

【0004】[0004]

【発明が解決しようとする課題】上記図3(a)、
(b)、(c)の屋根下葺き材は、屋根下地材の上に載
置され、釘やタッカーを打ち込んで施工されるものであ
るが、これら屋根下葺き材は弾力性がなく、また強度も
低いために、釘やタッカーで固定した後、作業者が屋根
下葺き材の上を歩行することによって発生する荷重が、
上記釘やタッカーで固定した部分に集中的にかかって破
れや割れが生じることがあり、この破れや割れから雨水
が浸入して防水性が損なわれる恐れがあった。また釘や
タッカーと屋根下葺き材との間に若干の隙間が生じるこ
とがあって完全に密着させてシールすることができず、
防水性を十分に確保することができないという問題があ
った。さらにこれら屋根下葺き材は、先ず屋根下地材の
上に敷かれ、この後作業者が屋根下葺き材に乗りながら
釘やタッカーを打ち込んで施工をおこなうが、釘やタッ
カーで固定しない状態の屋根下葺き材は屋根下地材の上
を勾配に沿って滑り落ち易く、屋根下葺き材に乗ってい
る作業者に危険が及ぶ恐れがあった。加えて図3(a)
の屋根下葺き材は、太陽の熱などで高温下に曝されると
アスファルトが溶け出してしまうことがあり、耐久性に
問題があった。
FIG. 3 (a) above,
The under-roofing materials of (b) and (c) are placed on the roofing base material and driven by nails or tackers. However, these under-roofing materials are not elastic and Since the strength is also low, the load generated by the worker walking on the under thatch material after fixing with nails or tackers,
There is a possibility that the parts fixed with the nails or the tacker are intensively applied to cause breakage or cracks, and rainwater may enter from the breaks or cracks to impair the waterproofness. In addition, there may be a slight gap between the nail or tacker and the roofing material, and it is not possible to make a complete contact and seal.
There is a problem that it is impossible to ensure sufficient waterproofness. Furthermore, these under-roofing materials are first laid on the roofing under-laying material, and then the worker rides on the under-roofing material and hammers in the nails and tackers to perform the construction, but the roof is not fixed with nails or tackers. The underlaying material is likely to slide down on the roof underlaying material along the slope, which may pose a danger to workers riding on the roofing underlaying material. In addition, FIG.
The under-roof roofing material had a problem in durability because the asphalt might melt out when exposed to high temperatures such as the heat of the sun.

【0005】また上記図3(d)の屋根下葺き材は、剥
離層13を粘着層31から剥がして屋根下地材に粘着層
31を粘着させることで施工されるものであるが、施工
後剥離層13は不要となり、ごみが大量に発生するとい
う問題があった。またこの屋根下葺き材は、屋根下地材
に張り付けた張りなおしたりして、張り位置の修正をお
こなうにあたって剥離することが困難であり、施工に時
間がかかって施工性が低下するという問題があった。
The roof underlaying material shown in FIG. 3 (d) is constructed by peeling the peeling layer 13 from the adhesive layer 31 and adhering the adhesive layer 31 to the roof base material. There is a problem that the layer 13 becomes unnecessary and a large amount of dust is generated. In addition, this roofing material is difficult to peel off when it is re-attached to the roofing base material to correct the tensioning position, and there is a problem that construction takes time and the workability deteriorates. It was

【0006】さらに図3(e)の屋根下葺き材は、強度
を得るために厚みを大きくして形成しなければならず、
このことで体積や重量が大きくなって施工性が低下する
という問題があった。本発明は上記の点に鑑みてなされ
たものであり、防水性が損なわれる恐れがないようにす
ることができると共に防水性を十分に確保することがで
き、また耐久性があり、さらに施工途中に作業者に危険
が及ぶことがないようにすることができ、しかもごみが
発生しないようにすることができると共に施工性を向上
させることができる屋根下葺き材を提供することを目的
とするものである。
Further, the under-roofing material of FIG. 3 (e) must be formed with a large thickness in order to obtain strength.
As a result, there is a problem that the volume and weight are increased and the workability is deteriorated. The present invention has been made in view of the above points, and it is possible to ensure that the waterproofness is not impaired and at the same time it is possible to sufficiently secure the waterproofness, and there is durability, and during construction It is an object of the present invention to provide a roof underlaying material that can prevent workers from being exposed to danger, can prevent dust from being generated, and can improve workability. Is.

【0007】[0007]

【課題を解決するための手段】本発明に係る屋根下葺き
材Aは、ゴム層1とゴム層2の間に補強層3を設けて成
ることを特徴とするものである。本発明にあって、上記
補強層3の縦方向と横方向の引っ張り強度を2.0kg
/cm以上に形成するのが好ましい。
A roof underlaying material A according to the present invention is characterized in that a reinforcing layer 3 is provided between a rubber layer 1 and a rubber layer 2. In the present invention, the tensile strength in the longitudinal direction and the transverse direction of the reinforcing layer 3 is 2.0 kg.
/ Cm or more is preferable.

【0008】[0008]

【作用】ゴム層1とゴム層2の間に補強層3を設けたの
で、ゴム層1、2を補強層3で補強することができる。
またゴム層1、2は弾力性を有するので、釘やタッカー
で固定した部分に荷重がかかっても破れや割れが発生し
ないようにすることができると共に釘やタッカーとゴム
層1、2を密着させることができて隙間が開かないよう
にすることができる。またゴム層1、2や補強層3は高
温下でも溶け出すことがない。さらに摩擦力の大きいゴ
ム層2と屋根下地材とを密着させることで屋根下地材の
上を滑らないようにすることができると共に、摩擦力の
大きいゴム層1の上に作業者が乗って作業することがで
き、作業者が滑らないようにすることができる。また粘
着層を用いず釘やタッカーで施工するので、離型紙など
の剥離層を設ける必要がなく、また張り位置の修正など
を容易におこなうことができる。
Since the reinforcing layer 3 is provided between the rubber layer 1 and the rubber layer 2, the rubber layers 1 and 2 can be reinforced by the reinforcing layer 3.
Further, since the rubber layers 1 and 2 have elasticity, it is possible to prevent tears and cracks from occurring even when a load is applied to a portion fixed with a nail or a tacker, and the nails and the tacker and the rubber layers 1 and 2 are adhered to each other. It is possible to prevent it from opening a gap. Further, the rubber layers 1 and 2 and the reinforcing layer 3 do not melt even at high temperatures. Further, by sticking the rubber layer 2 having a large frictional force to the roofing base material, it is possible to prevent slipping on the roofing base material, and an operator rides on the rubber layer 1 having a large frictional force to work. It is possible to prevent the operator from slipping. Further, since the construction is carried out with a nail or a tacker without using an adhesive layer, it is not necessary to provide a release layer such as release paper, and the tension position can be easily corrected.

【0009】また上記補強層3の縦方向と横方向の引っ
張り強度を2.0kg/cm以上に形成したので、ゴム
層1、2の厚みを大きくすることなく強度を高くするこ
とができる。
Further, since the tensile strength of the reinforcing layer 3 in the longitudinal direction and the transverse direction is set to 2.0 kg / cm or more, the strength can be increased without increasing the thickness of the rubber layers 1 and 2.

【0010】[0010]

【実施例】以下本発明を実施例によって詳述する。本実
施例の屋根下葺き材Aは図1に示すように、下側のゴム
層2の上面の全面に亘って補強層3を積層すると共に補
強層3の上面に全面に亘って上側のゴム層1を積層する
ことによって形成されている。ゴム層1、2と補強層3
の接着は接着剤を用いたり或いは熱融着したりすること
によっておこなうことができる。またこの屋根下葺き材
Aの厚みは0.5〜1.0mmが好ましい。上記図3
(b)、(c)の屋根下葺き材では、厚みが薄過ぎて重
量が小さく、急勾配の屋根下地材の上に載せると滑り落
ちて施工しにくいという問題があったが、本実施例のも
のにおいても厚みが0.5mm未満であれば、厚みが薄
過ぎて軽くなり勾配のある屋根下地材の上に載せた時に
滑り落ち易くなり、また釘やタッカーを打ち込んだ部分
のシール性を十分に確保することができない。逆に厚み
が1.0mmを超えると、厚みが厚過ぎて重量、体積が
大きくなって施工をおこないにくくなるものである。
EXAMPLES The present invention will be described in detail below with reference to examples. As shown in FIG. 1, the roof underlayment material A of this embodiment has a reinforcing layer 3 laminated on the entire upper surface of the lower rubber layer 2 and an upper rubber layer entirely on the upper surface of the reinforcing layer 3. It is formed by stacking layers 1. Rubber layers 1 and 2 and reinforcing layer 3
Can be adhered by using an adhesive or by heat fusion. The thickness of the roofing material A is preferably 0.5 to 1.0 mm. Figure 3 above
The under-roofing materials of (b) and (c) had a problem that the thickness was too thin and the weight was small, and when they were placed on a steeply-roofed roofing base material, they slipped off and construction was difficult. Also, if the thickness is less than 0.5 mm, it will be too thin and light, and it will easily slip off when placed on a sloping roof base material, and the sealing property of the part where a nail or tacker is driven will be improved. We cannot secure enough. On the other hand, when the thickness exceeds 1.0 mm, the thickness becomes too thick and the weight and volume become large, which makes it difficult to perform the construction.

【0011】ゴム層1、2はSBR(スチレンブタジエ
ンゴム)、EPM(エチレンプロピレンゴム)、EPD
M(エチレン−プロピレン−ジエンモノマー三元共重合
ゴム)の単体或いはこれらの共重合体などで形成するこ
とができ、強度の向上を考えると加流されていることが
好ましい。補強層3は不織布(ガラス製)、織布(ガラ
ス製)、紙、フィルム等で形成することができるが、こ
の補強層3の縦方向と横方向の引っ張り強度が共に2.
0kg/cm(1cm幅あたり2.0kgの引っ張り強
度であることを示す。)以上であることが必要である。
引っ張り強度が2.0kg/cm未満であれば、ゴム層
1、2を十分に補強することができず、また釘やタッカ
ーを打ち込んだ部分に集中的にかかる荷重で補強層3に
破れや割れが発生する恐れがある。
The rubber layers 1 and 2 are SBR (styrene butadiene rubber), EPM (ethylene propylene rubber), EPD.
It can be formed from a simple substance of M (ethylene-propylene-diene monomer terpolymer rubber) or a copolymer thereof, and is preferably added in consideration of improvement in strength. The reinforcing layer 3 can be formed of a non-woven fabric (made of glass), a woven fabric (made of glass), paper, a film, etc., and the tensile strength of the reinforcing layer 3 in both the longitudinal direction and the lateral direction is 2.
It is necessary to be 0 kg / cm (indicates a tensile strength of 2.0 kg per 1 cm width) or more.
If the tensile strength is less than 2.0 kg / cm, the rubber layers 1 and 2 cannot be sufficiently reinforced, and the reinforcing layer 3 is torn or cracked by a load that is intensively applied to a portion where a nail or a tacker is driven. May occur.

【0012】このように本実施例の屋根下葺き材Aは、
ゴム層1とゴム層2の間に補強層3を設けたので、ゴム
層1、2を補強層3で補強することができ、しかも補強
層3の縦方向と横方向の引っ張り強度を2.0kg/c
m以上にしたので、ゴム層1、2の厚みを非常に大きく
しなくても強度を十分に確保することができる。また摩
擦力の大きいゴム層2を下面に設けたので、急勾配の屋
根下地材の上に載せても滑り落ちないようにすることが
できる。さらに摩擦力の大きいゴム層1を上面に設けた
ので、作業者が乗っても滑らないようにすることができ
る。
As described above, the roofing material A of this embodiment is
Since the reinforcing layer 3 is provided between the rubber layer 1 and the rubber layer 2, the rubber layers 1 and 2 can be reinforced with the reinforcing layer 3, and the tensile strength of the reinforcing layer 3 in the longitudinal direction and the lateral direction can be 2. 0 kg / c
Since the thickness is at least m, sufficient strength can be ensured without making the thicknesses of the rubber layers 1 and 2 very large. Further, since the rubber layer 2 having a large frictional force is provided on the lower surface, it is possible to prevent the rubber layer 2 from slipping down even if the rubber layer 2 is placed on a steep roof base material. Further, since the rubber layer 1 having a large frictional force is provided on the upper surface, it is possible to prevent an operator from slipping even when riding.

【0013】またゴム層1、2は弾力性を有するので、
釘やタッカーで打ち込んでもその部分に破れや割れが発
生しないようにすることができ、しかもゴム層1、2を
釘やタッカーに密着させて隙間が開かないようにするこ
とができる。またゴム層1、2のゴムや補強層3の不織
布などは、太陽の熱に曝されるなどして高温下に置かれ
ても溶け出すようなことがなく、よってこの屋根下葺き
材Aは長期間の使用に耐えることができるものである。
Since the rubber layers 1 and 2 have elasticity,
It is possible to prevent tearing or cracking of the portion even if it is driven with a nail or a tacker, and moreover, the rubber layers 1 and 2 are brought into close contact with the nail or the tacker to prevent a gap from being opened. Further, the rubber of the rubber layers 1 and 2 and the non-woven fabric of the reinforcing layer 3 do not melt even when placed under high temperature due to being exposed to the heat of the sun. Therefore, this roofing material A is It can withstand long-term use.

【0014】以下、本実施例の具体例を示してその性能
を評価する。 (具体例)引っ張り強度が縦方向4.5kg/cm以
上、横方向4.0kg/cm以上で目付け70g/cm
2 の不織布を補強層3とし、その上下に未加流のEPD
Mのゴムシートを配置し、補強層3とゴムシートを一体
化すると共にゴムシートをプレス加流してゴム層1、2
を形成することによって、厚さ0.7mmの図1に示す
ような屋根下葺き材Aを作成した。
Hereinafter, the performance of the present embodiment will be evaluated by showing a specific example. (Specific example) Tensile strength is 4.5 kg / cm or more in the longitudinal direction and 4.0 kg / cm or more in the lateral direction, and the basis weight is 70 g / cm.
The non-woven fabric of No. 2 is used as the reinforcing layer 3, and the EPD that is not flowed above and below
The rubber sheet of M is arranged, the reinforcing layer 3 and the rubber sheet are integrated, and the rubber sheet is press-flowed to form the rubber layers 1 and 2.
By forming a roof underlaying material A having a thickness of 0.7 mm as shown in FIG.

【0015】(比較例1)不織布にアスファルトを含浸
させて基材層30とし、その表裏面に鉱物質粉層を形成
して図3(a)に示すような屋根下葺き材を作成した。 (比較例2)塩化ビニルシート12の裏面にターフェル
ト層11を設けて形成される屋根下葺き材(「ハイトン
トン VR−2822」松下電工社製、図3(b)に示
す従来例と同様のもの)を使用した。
(Comparative Example 1) A non-woven fabric was impregnated with asphalt to form a base material layer 30, and a mineral powder layer was formed on the front and back surfaces of the base material layer 30 to prepare a roofing material as shown in FIG. 3 (a). (Comparative Example 2) A roof underlaying material formed by providing a terfelt layer 11 on the back surface of a vinyl chloride sheet 12 ("Hightonton VR-2822" manufactured by Matsushita Electric Works, Ltd., similar to the conventional example shown in FIG. 3B). Stuff) was used.

【0016】(比較例3)厚さ0.4mmのポリエチレ
ンシート14で屋根下葺き材を作成した(図3(c)に
示す従来例と同様のもの)。 (比較例4)基材層30としてゴムシートを用い、その
裏面に粘着層31と剥離層13を設けて形成される屋根
下葺き材(「フルベストシート VR−610」松下電
工社製、図3(d)に示す従来例と同様なもの)を使用
した。
(Comparative Example 3) A roof underlaying material was prepared from a polyethylene sheet 14 having a thickness of 0.4 mm (the same as the conventional example shown in FIG. 3 (c)). (Comparative Example 4) A roof underlaying material formed by using a rubber sheet as the base material layer 30 and providing an adhesive layer 31 and a release layer 13 on the back surface thereof ("Full Best Sheet VR-610" manufactured by Matsushita Electric Works, Ltd., FIG. The same as the conventional example shown in FIG. 3 (d) was used.

【0017】(比較例5)EPDMとブチルゴム(II
R)のブレンドゴム(EPDM/IIRの配合比が80
/20wt%)からなる1.0mmの市販のゴムシート
15を屋根下葺き材とした。上記具体例と比較例1乃至
5について、対屋根下地材の滑り性試験、表面の滑り性
試験、防水シール性試験、施工性試験、引っ張り強度試
験、厚み測定、重量測定、耐熱溶融性試験をおこなっ
た。
(Comparative Example 5) EPDM and butyl rubber (II
R) blended rubber (EPDM / IIR compounding ratio 80
A commercially available rubber sheet 15 of 1.0 mm composed of / 20 wt%) was used as the roofing material. With respect to the above specific examples and Comparative Examples 1 to 5, the slip resistance test against the roof underlaying material, the surface slipperiness test, the waterproof sealability test, the workability test, the tensile strength test, the thickness measurement, the weight measurement, and the heat melting resistance test were performed. I did it.

【0018】対屋根下地材の滑り性試験は、各具体例及
び比較例を10×10mmの大きさに裁断してサンプル
Bとし、このサンプルBを図2(a)に示すように合板
20の上に載せると共にサンプルBの上に5kgの錘2
1を載せ、この状態でサンプルBをオートグラフ抗張力
試験機で矢印の方向に水平に100mm/分の速度で引
っ張り、この時の引っ張り荷重(単位はkgf)を測定
した。尚、この滑り性試験はサンプルBと合板20の界
面を乾燥状態にしておこなった。
In the sliding property test of the roofing base material, each concrete example and comparative example were cut into a size of 10 × 10 mm to obtain a sample B, and this sample B was used for the plywood 20 as shown in FIG. 2 (a). Place it on top of the sample B and put a weight of 2 kg on the sample B.
In this state, Sample B was pulled horizontally with an autograph tensile strength tester at a speed of 100 mm / min in the direction of the arrow, and the pulling load (unit: kgf) at this time was measured. In addition, this slipperiness test was conducted with the interface between the sample B and the plywood 20 being in a dry state.

【0019】表面の滑り性試験は、上記と同様のサンプ
ルBを図2(b)に示すように合板20の上に載せると
共にサンプルBの上に、底面にゴム材25を設けた5k
gの錘21を載せ、この状態で錘21をオートグラフ抗
張力試験機で矢印の方向に水平に100mm/分の速度
で引っ張り、この時の引っ張り荷重(単位はkgf)を
測定した。尚、この滑り性試験はサンプルBと錘21の
界面を乾燥状態にしておこなった。
For the surface slipperiness test, the same sample B as above was placed on the plywood 20 as shown in FIG. 2 (b), and the rubber material 25 was provided on the bottom of the sample B for 5k.
A weight 21 of g was placed, and in this state, the weight 21 was pulled horizontally in the direction of the arrow with an autograph tensile strength tester at a speed of 100 mm / min, and the tensile load (unit: kgf) at this time was measured. In addition, this slip property test was performed with the interface between the sample B and the weight 21 being in a dry state.

【0020】防水シール性試験は、各具体例及び比較例
を適当な大きさに裁断して形成したサンプルCを合板2
0の上に載せ、サンプルCを釘24にて合板20に打ち
付け、この釘24を打ち付けた周辺部を覆うようにして
水筒23をサンプルCの上に載せると共に水筒23内に
300mmの高さまで水29を入れた。28は防水のた
めのシール材である。このようにして釘24を打ち付け
た部分に300mmの水圧をかけた状態で24時間静置
した後、サンプルCの裏面への漏水の有無を調べた。こ
の試験は合計3か所おこなって漏水がなかった部分を合
格として○を付し、漏水があった部分を不合格として×
を付した。
In the waterproof sealability test, the sample C formed by cutting each concrete example and comparative example into an appropriate size is formed by plywood 2.
0, the sample C is nailed to the plywood 20 with the nail 24, the water bottle 23 is placed on the sample C so as to cover the peripheral portion where the nail 24 is hammered, and water is dropped into the water bottle 23 to a height of 300 mm. I put 29. 28 is a sealing material for waterproofing. After allowing the nail 24 to be struck in this way for 24 hours with a water pressure of 300 mm applied, the presence or absence of water leakage to the back surface of the sample C was examined. This test was conducted in three places in total, and the part where there was no water leakage was marked as ○, and the part where there was water leakage was regarded as unacceptable ×
Attached.

【0021】施工性試験は、屋根下地材が厚さ12mm
の合板で形成される、切妻、5寸勾配、面積40m2
平屋(1F建て)の屋根にて実際の施工をおこない、そ
の時にかかった施工時間(単位は分)を測定した。尚、
天候は晴れ、気温は20℃であった。また施工後のごみ
の発生の有無を見た。引っ張り強度試験は、JIS A
6008に準拠しておこなった。尚、引っ張り速度は
100mm/分とし、強度は生データのMax値とし
た。
In the workability test, the roof base material has a thickness of 12 mm.
The actual construction was performed on the roof of a flat house (1F building) with a gable, a 5-dimensional slope, and an area of 40 m 2 formed of plywood of No. 2 , and the construction time (unit: minutes) required at that time was measured. still,
The weather was fine and the temperature was 20 ° C. In addition, we checked the occurrence of dust after construction. The tensile strength test is JIS A
It carried out based on 6008. The tensile speed was 100 mm / min, and the strength was the Max value of raw data.

【0022】重量測定は、幅1m、長さ22mの具体例
及び比較例1乃至5の重量を測定した。耐熱溶融性試験
は、各具体例及び比較例を80℃の恒温槽にて24時間
放置した後、溶融物の有無を観察した。上記各試験の結
果を表1に示す。
For the weight measurement, the weights of the concrete examples having a width of 1 m and a length of 22 m and Comparative Examples 1 to 5 were measured. In the heat melting resistance test, each specific example and comparative example were allowed to stand in an 80 ° C. constant temperature bath for 24 hours, and then the presence or absence of a melt was observed. The results of each of the above tests are shown in Table 1.

【0023】[0023]

【表1】 [Table 1]

【0024】表1において具体例と比較例1、2、3を
対比すると、具体例は比較例1、2、3よりも屋根下地
材に対して滑りにくく、また表面も滑りにくいというこ
とが判る。つまり具体例には摩擦力の大きいゴム層1、
2が設けてあるので、ゴムシートで形成される比較例5
と同程度の滑り性を有することになる。また具体例は比
較例1、2、3よりも防水シール性が高いことが判る。
これはサンプルCに打ち込まれた釘25とゴム層1、2
が密着するためである。さらに具体例の施工時間は比較
例4よりも短いことが判る。つまり具体例は、高い粘着
性を有する粘着層を設けていないので張り位置の修正が
容易で施工時間が短くて済み、施工性が向上していると
言える。また比較例4では粘着層31が屋根下葺き材の
表面に付かないように剥離層13を設けているために、
施工の際に剥がされる剥離層13がゴミとなるが、具体
例ではごみが発生するようなことがない。また具体例は
比較例1、4、5よりも厚みが薄いにもかかわらず、引
っ張り強度が大きいことが判る。これはゴム層1、2を
補強層3で補強しているためである。さらに具体例は比
較例1のように溶融したりすることがないことが判る。
Comparing the specific examples with Comparative Examples 1, 2 and 3 in Table 1, it can be seen that the specific examples are less slippery than the comparative examples 1, 2 and 3 with respect to the roof base material and the surface is also less slippery. . That is, in the specific example, the rubber layer 1 having a large frictional force,
2 is provided, so that a comparative example 5 formed of a rubber sheet
It will have the same level of slipperiness. Further, it can be seen that the specific examples have higher waterproof sealing properties than Comparative Examples 1, 2, and 3.
This is the nail 25 and the rubber layers 1 and 2 driven into the sample C.
Because of the close contact. Further, it can be seen that the construction time of the specific example is shorter than that of the comparative example 4. In other words, it can be said that the specific example has an improved adhesiveness because the adhesive layer having high adhesiveness is not provided, the tension position can be easily corrected, the installation time can be shortened, and the installation property is improved. Further, in Comparative Example 4, since the release layer 13 is provided so that the adhesive layer 31 does not adhere to the surface of the roof underlaying material,
The peeling layer 13 that is peeled off at the time of construction becomes dust, but in a specific example, dust is not generated. Further, it can be seen that the specific example has a larger tensile strength than the comparative examples 1, 4, and 5 although the thickness is smaller. This is because the rubber layers 1 and 2 are reinforced by the reinforcing layer 3. Further, it can be seen that the specific example does not melt unlike the comparative example 1.

【0025】[0025]

【発明の効果】上記のように本発明は、ゴム層とゴム層
の間に補強層を設けたので、ゴム層を補強層で補強して
破れや割れが発生しないようにすることができ、またゴ
ム層は弾力性を有するので、釘やタッカーで固定した部
分に荷重がかかっても破れや割れが発生しないようにす
ることができ、防水性が損なわれる恐れがないようにす
ることができるものである。しかも釘やタッカーとゴム
層を密着させることができて隙間が開かないようにする
ことができ、防水性を十分に確保することができるもの
である。またゴム層や補強層は高温下でも溶け出すこと
がなく、耐久性を有するものである。さらに摩擦力の大
きいゴム層と屋根下地材とを密着させることで屋根下地
材の上を滑らないようにすることができ、急勾配の屋根
下地材の上に施工する時にでも滑り落ちたりすることが
なく、施工がおこない易くなって施工性が向上するもの
である。また摩擦力の大きいゴム層の上に作業者が乗っ
て作業することができ、作業者が滑らないようにするこ
とができ、施工途中の作業者に危険が及ばないようにす
ることができるものである。また粘着層を用いず釘やタ
ッカーで施工するので、離型紙などの剥離層を設ける必
要がなく、よってごみが発生しないようにすることがで
きると共に、張り位置の修正などを容易におこなうこと
ができ、施工性を向上させることができるものである。
As described above, according to the present invention, since the reinforcing layer is provided between the rubber layers, it is possible to reinforce the rubber layer with the reinforcing layer and prevent breakage or cracking. Further, since the rubber layer has elasticity, it is possible to prevent tearing or cracking even when a load is applied to a portion fixed with a nail or a tucker, and to prevent the waterproof property from being impaired. It is a thing. In addition, the nail or the tacker and the rubber layer can be brought into close contact with each other to prevent a gap from being opened, and sufficient waterproofness can be ensured. Further, the rubber layer and the reinforcing layer do not melt even at high temperatures and have durability. Furthermore, by sticking the rubber layer with a large frictional force to the roof base material, it is possible to prevent it from slipping on the roof base material and slip off even when constructing on a steep roof base material. Since there is no such problem, the workability is improved and the workability is improved. In addition, a worker can ride on a rubber layer with a large frictional force to work, prevent the worker from slipping, and prevent the worker from being in danger during construction. Is. In addition, since it is constructed with nails or a tacker without using an adhesive layer, it is not necessary to provide a release layer such as release paper, so it is possible to prevent dust from being generated, and it is possible to easily correct the tension position. Therefore, the workability can be improved.

【0026】また上記補強層の縦方向と横方向の引っ張
り強度を2.0kg/cm以上に形成したので、ゴム層
の厚みを大きくすることなく強度を高くすることがで
き、よって重量や体積が大きくなって施工がおこないに
くくなるようなことがなくなり、施工性を向上させるこ
とができるものである。
Further, since the tensile strength in the longitudinal and transverse directions of the reinforcing layer is set to 2.0 kg / cm or more, the strength can be increased without increasing the thickness of the rubber layer, and therefore the weight and the volume can be increased. It is possible to improve the workability without increasing the size and making the work difficult to perform.

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

【図1】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.

【図2】(a)は対屋根下地材の滑り性試験を示す概略
図、(b)は表面の滑り性試験を示す概略図、(c)は
防水シール性試験を示す概略図である。
FIG. 2A is a schematic diagram showing a slip property test of a roofing base material, FIG. 2B is a schematic diagram showing a surface slip property test, and FIG. 2C is a schematic diagram showing a waterproof sealing property test.

【図3】(a)、(b)、(c)、(d)、(e)は従
来例を示す断面図である。
3 (a), (b), (c), (d) and (e) are sectional views showing a conventional example.

【符号の説明】[Explanation of symbols]

1 ゴム層 2 ゴム層 3 補強層 A 屋根下葺き材 1 rubber layer 2 rubber layer 3 reinforcing layer A roofing material

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ゴム層とゴム層の間に補強層を設けて成
ることを特徴とする屋根下葺き材。
1. A roof underlayment material comprising a rubber layer and a reinforcing layer provided between the rubber layers.
【請求項2】 上記補強層の縦方向と横方向の引っ張り
強度を2.0kg/cm以上に形成して成ることを特徴
とする請求項1に記載の屋根下葺き材。
2. The under-roofing material according to claim 1, wherein the reinforcing layer is formed to have a tensile strength of 2.0 kg / cm or more in the longitudinal direction and the transverse direction.
JP31194394A 1994-12-15 1994-12-15 Prime roofing material Withdrawn JPH08170273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31194394A JPH08170273A (en) 1994-12-15 1994-12-15 Prime roofing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31194394A JPH08170273A (en) 1994-12-15 1994-12-15 Prime roofing material

Publications (1)

Publication Number Publication Date
JPH08170273A true JPH08170273A (en) 1996-07-02

Family

ID=18023308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31194394A Withdrawn JPH08170273A (en) 1994-12-15 1994-12-15 Prime roofing material

Country Status (1)

Country Link
JP (1) JPH08170273A (en)

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