JPH0728282Y2 - Roofing base material - Google Patents
Roofing base materialInfo
- Publication number
- JPH0728282Y2 JPH0728282Y2 JP1987176465U JP17646587U JPH0728282Y2 JP H0728282 Y2 JPH0728282 Y2 JP H0728282Y2 JP 1987176465 U JP1987176465 U JP 1987176465U JP 17646587 U JP17646587 U JP 17646587U JP H0728282 Y2 JPH0728282 Y2 JP H0728282Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- base material
- thermoplastic resin
- jis
- moisture permeability
- 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.)
- Expired - Lifetime
Links
Landscapes
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は屋根下地材に関し、詳しくは防水性と水密性を
兼ね備えた結露の発生を防止した屋根下地材に関するも
のである。本考案において防水性は通常の意味における
防水性即ち水分遮断性をいい、水密性とは施工時に打た
れた釘まわりからの水洩れ防止性をいう。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a roof substrate, and more particularly to a roof substrate having both waterproofness and watertightness and preventing the formation of dew condensation. In the present invention, the waterproof property means a waterproof property in a normal sense, that is, a water blocking property, and the watertight property means a water leakage preventive property around a nail hit at the time of construction.
（従来の技術） 従来より広く使用されている家屋用屋根下地材は、アス
ベスト、アスファルト含浸素材、ポリエチレン、ポリエ
ステル、ポリアミド等の合成樹脂フィルムなど通気性を
ほとんど有しない素材が主体となっている。これらの素
材は防水性の点では何ら問題はないが透湿性は極端に低
いか全くない。これらを屋根下地材として用いるとその
両側で生じた温度差および湿度差により水蒸気の結露が
発生し易いという大きな欠点がある。この結露の発生は
保温性の低下を促進するばかりでなく、シミやカビの発
生を誘発し易い環境をつくることにもなり大きな関心事
となっている。(Prior Art) The roofing base materials for houses which have been widely used conventionally are mainly made of materials having almost no air permeability such as asbestos, asphalt-impregnated materials, and synthetic resin films such as polyethylene, polyester and polyamide. These materials have no problem in terms of waterproofness, but have extremely low or no moisture permeability. When these are used as a roofing base material, there is a big defect that dew condensation of water vapor easily occurs due to a temperature difference and a humidity difference generated on both sides thereof. The occurrence of dew condensation not only promotes a decrease in heat retention but also creates an environment in which it is easy to induce the formation of spots and molds, which is of great concern.
しかるに最近これらの問題点を解決したものとして通気
性、或は透湿性を備えた素材が使用され始めてきた。こ
れらの素材はポリオレフィン系、ポリエステル系等の合
成繊維からなる不織布にカレンダー処理および／または
ポリウレタン等の樹脂よりなる透湿・防水コーティング
加工が施されており、防水性と透湿性を有するために確
かに結露発生等の問題は解消しているが、実際に屋根下
材として使用した場合、施工時に打たれた釘まわりから
の水洩れ即ち水密性不足という屋根下材としての致命的
な欠点を持っている。However, recently, materials having breathability or moisture permeability have begun to be used as a solution to these problems. These materials are made of non-woven fabrics made of synthetic fibers such as polyolefins and polyesters, which are calendered and / or moisture-permeable / water-proof coated with a resin such as polyurethane. Although the problem of dew condensation on the roof has been solved, when it is actually used as a roof underlay material, it has a fatal defect as a roof underlay material such as water leakage around the nails struck during construction, that is, insufficient water tightness. ing.
（考案が解決しようとする問題点） 本考案の目的は防水性、水密性を阻害することなく透湿
性を付与して結露の発生を防止した家屋用屋根下材を提
供することにある。(Problems to be Solved by the Invention) An object of the present invention is to provide a roof underlay material for a house, which has moisture permeability without impairing waterproofness and watertightness and prevents the occurrence of dew condensation.
（問題点を解決するための手段） 前記目的を達成するための本考案手段の要旨とするとこ
ろは、合成繊維からなる不織布に吸水性樹脂を分散させ
た非吸水性熱可塑性樹脂層を積層し、且つ非吸水性熱可
塑性樹脂層に撥水剤を含浸付着させてなるもので、透湿
度が少なくとも200g/cm2/24hrs.（JIS L−1099A−１
法）で、耐水度が少なくとも500mm（JIS L−1092A法）
である前記屋根下地材に存する。(Means for Solving Problems) The gist of the means of the present invention for achieving the above-mentioned object is to laminate a non-water-absorbent thermoplastic resin layer in which a water-absorbent resin is dispersed in a nonwoven fabric made of synthetic fibers. and a non-water-absorbing thermoplastic resin layer made of impregnated coated with a water repellent agent, 2 moisture permeability of at least 200g / cm /24hrs.(JIS L-1099A- 1
Method), water resistance is at least 500 mm (JIS L-1092A method)
The roof base material is
以下本考案を図面に基づいて説明する。The present invention will be described below with reference to the drawings.
図は合成繊維よりなる不織布１に吸水性樹脂２を含有す
る熱可塑性樹脂３をコーティングまたはラミネーション
により積層し、且つ撥水剤４を複合してなるものであ
る。In the figure, a nonwoven fabric 1 made of synthetic fibers is laminated with a thermoplastic resin 3 containing a water-absorbent resin 2 by coating or lamination, and a water repellent 4 is compounded.
本考案で用いる合成繊維からなる不織布とはポリエチレ
ン系、ポリプロピレン系、ポリアミド系、ポリエステル
系、ポリ塩化ビニル系、ポリウレタン系の合成繊維単独
または複合からなる不織布およびこれら合成繊維とセル
ロース系、タンパク質系その他の半合成繊維、再成繊維
との複合からなる不織布である。The non-woven fabric composed of synthetic fibers used in the present invention is a non-woven fabric composed of polyethylene-based, polypropylene-based, polyamide-based, polyester-based, polyvinyl chloride-based, polyurethane-based synthetic fibers alone or in combination, and these synthetic fibers and cellulose-based, protein-based, etc. It is a non-woven fabric composed of a composite of semi-synthetic fibers and regenerated fibers.
これらの不織布はそのまま用いてもよく、また不織布の
強力向上と防水性向上のためにカレンダー処理を施した
後用いてもよい。かかるカレンダー処理により熱圧着ま
たは部分的に熱融着する場合に注意すべきは不織布全体
として透湿性を損なわないように条件の設定に配慮をす
る必要があることである。These non-woven fabrics may be used as they are, or may be used after being subjected to a calendar treatment in order to improve the strength and waterproofness of the non-woven fabric. When performing thermocompression bonding or partial thermal fusion bonding by such calendering, it is necessary to pay attention to the setting of conditions so as not to impair the moisture permeability of the entire nonwoven fabric.
次に本考案で用いる熱可塑性樹脂とは、ポリウレタン、
ポリアクリル酸エステル、ポリエチレン、ポリプロピレ
ン、ポリテトラフルオロエチレン、ポリ塩化ビニル等の
通常成形、成膜等に用いられている合成樹脂である。こ
れら合成樹脂はそれ自身は非吸水性（水を吸収して膨潤
しない）であり皮膜形成能を有するものである。これら
の合成樹脂は不織布と積層する際、有孔樹脂皮膜を形成
するものであろうが、無孔樹脂皮膜を形成するものであ
ろうが後述する吸水性樹脂を混合して積層しかつ撥水剤
処理した状態で透湿度が少なくとも200g/cm2/24hrs.以
上、耐水度が少なくとも500mm以上である限りその種類
や量には特に制限はない。Next, the thermoplastic resin used in the present invention is polyurethane,
It is a synthetic resin such as polyacrylic acid ester, polyethylene, polypropylene, polytetrafluoroethylene, polyvinyl chloride, etc., which is usually used for molding, film formation and the like. These synthetic resins themselves are non-water-absorbing (absorb water and do not swell) and have film forming ability. When these synthetic resins are laminated with a nonwoven fabric, they may form a porous resin film or a non-porous resin film. agent moisture permeability processing state of at least 200g / cm 2 / 24hrs. above, water resistance is not particularly limited in its type and amount as long as at least 500mm or more.
本考案にいう吸水性樹脂とは、それ自身で水を吸収し膨
潤ないし溶する樹脂であり、一般的には使いすておむつ
などの分野で使用されている高吸水性ポリマーを称し、
具体的にはセルロースのアルキレングリコール、アクリ
ロニトリル、アクリル酸、アクリル酸塩のグラフト共重
合体、ポリアクリル酸あるいはポリアクリル酸塩の架橋
品、アクリル酸エステルと酢酸ビニルの共重合体の部分
けん化品、ポリアルキレングリコール、無水マレイン酸
とイソブテンとの共重合体などである。The water-absorbent resin referred to in the present invention is a resin that absorbs water by itself and swells or dissolves, and generally refers to a super-water-absorbent polymer that is used in the field of diapers and the like when used.
Specifically, alkylene glycol of cellulose, acrylonitrile, acrylic acid, graft copolymer of acrylic acid salt, crosslinked product of polyacrylic acid or polyacrylic acid salt, partially saponified product of copolymer of acrylic acid ester and vinyl acetate, Examples thereof include polyalkylene glycols and copolymers of maleic anhydride and isobutene.
これらの吸水性樹脂の単独あるいは２種以上を該熱可塑
性樹脂の混合して使用するがその配合割合は熱可塑性樹
脂の皮膜物性を阻害せずかつ透湿性や水密性を付与する
添加効果が得られる割合にする必要があり、固形分換算
で５〜50％が好ましい。These water-absorbent resins may be used alone or in admixture of two or more, and the mixing ratio thereof does not impair the film properties of the thermoplastic resin and has the effect of adding moisture permeability and water-tightness. It is necessary to adjust the ratio to be 5% to 50% in terms of solid content.
これらの配合により得られる樹脂で形成される皮膜の水
に対する膨潤性は２〜20倍（体積比:20℃水道水）を有
する。The swelling property of the film formed of the resin obtained by these blending with respect to water is 2 to 20 times (volume ratio: 20 ° C. tap water).
次にこれら吸水性樹脂を含む熱可塑性樹脂の不織布への
積層法としては種々のコーティング法、ラミネーティン
グ法、含浸加工法が適宜用いられる。本考案では更に撥
水剤を含浸付着させる。Next, various coating methods, laminating methods, and impregnation processing methods are appropriately used as a method for laminating a thermoplastic resin containing these water-absorbent resins onto a nonwoven fabric. In the present invention, a water repellent is further impregnated and attached.
本考案で用いるに適する撥水剤としてはフッ素、シリコ
ン系、ワックス系などが好ましく使用する溶媒としては
水あるいは有機溶剤のいずれでもよい。付与処理の段階
としては該不織布と該熱可塑性樹脂を積層した後が好ま
しい。また撥水処理により得られる処理物の撥水度はJI
S L−1092で50点以上、好ましくは80点以上が望まし
い。The water repellent suitable for use in the present invention is preferably fluorine, silicone, wax or the like, and the solvent used is preferably water or an organic solvent. As the stage of applying treatment, it is preferable to laminate the nonwoven fabric and the thermoplastic resin. The water repellency of the treated product obtained by water repellent treatment is JI.
SL-1092 is desired to be 50 points or higher, preferably 80 points or higher.
本考案による屋根下地材は、透湿性が防水性と同時に満
足されると共に水密性に優れている特徴がある。即ち、
透湿度（JIS L−1099A−１法にて測定）は少なくとも20
0g/cm2/24hrs.、好ましくは500g/cm2/24hrs.以上、防水
度は耐水度（JIS L−1092A法にて測定）で評価するが少
なくとも500mm、好ましくは1000mm以上を示す。水密性
に関しては未だ標準化された規格はないが、例えば本素
材を厚み4.5mmのベニア板に中央部直径30mmを除き周囲
を接着剤にて接着した後中心に径4mm、長さ100mmの釘を
本素材の上から50mm打ち込み、次に釘頭を左右に各2m
m、25サイクル（１サイクル／秒）動かした後、水柱50m
m、１時間での水の洩れ具合を観察した結果、水洩れが
生じなかった等の特徴を有するものである。The roof substrate according to the present invention is characterized in that the moisture permeability is satisfied at the same time as the waterproof property and the watertightness is excellent. That is,
Water vapor transmission rate (measured by JIS L-1099A-1 method) is at least 20
0g / cm 2 / 24hrs., Preferably 500g / cm 2 / 24hrs. Above, the waterproof degree is evaluated by water resistance (measured by JIS L-1092A method) of at least 500 mm, preferably a least 1000 mm. Although there is no standard for watertightness, for example, this material is attached to the 4.5 mm thick veneer plate except for the central diameter of 30 mm with an adhesive around the periphery and then a nail with a diameter of 4 mm and a length of 100 mm is centered. Drive 50mm from the top of this material, then nail heads 2m left and right
After moving for 25 cycles (1 cycle / sec) for m, water column 50m
As a result of observing the degree of water leakage in 1 hour, the water leakage did not occur.
この水密性の効果には吸水性樹脂が大きく寄与してお
り、その現象は釘打ち部まで達した水は乾燥状態では釘
と本素材との密着性が完全でないためにその間隙に侵入
し始めるが、釘打ちにより破断された熱可塑性樹脂層よ
りこの層に含まれる吸水性樹脂に直ちに吸収されて膨潤
し、水の侵入が防止されてこの結果水密性が得られるこ
とになる。The water-absorbent resin greatly contributes to this watertight effect, and the phenomenon that water that reaches the nailing part begins to penetrate into the gap because the adhesion between the nail and this material is not perfect in the dry state. However, the thermoplastic resin layer broken by nailing is immediately absorbed by the water absorbent resin contained in this layer and swells, water is prevented from entering, and as a result, watertightness is obtained.
（考案の効果） 本考案による家屋用屋根下地材は、防水性、水密性とい
う屋根下地材として従来より要望されている必要機能と
同時に透湿性を兼ね備えているため屋根下での結露およ
びそれに起因するシミやカビの発生のない快適な居住空
間を与えることができるという実用上優れた機能を果た
すものである。(Effect of the invention) The roofing base material for a house according to the present invention has moisture permeability and at the same time the necessary functions that have been conventionally demanded as a roofing base material such as waterproofness and watertightness. It has a practically excellent function of providing a comfortable living space free from stains and mold.
尚本素材は、それ単独で用いても十分効果を発揮するが
ガラス繊維積層体、発泡体など他の通気性の大きい断熱
保温材と組合わせても良好な効果を示す。The present material exerts a sufficient effect when used alone, but also exhibits a good effect when combined with another highly heat-insulating heat insulation material such as a glass fiber laminate or a foam.
図面は本考案に係わる屋根下地材の例を示す拡大断面図
である。 １……不織布、２……吸水性樹脂、３……熱可塑性樹
脂、４……撥水剤。The drawing is an enlarged sectional view showing an example of a roof substrate according to the present invention. 1 ... Nonwoven fabric, 2 ... Water absorbent resin, 3 ... Thermoplastic resin, 4 ... Water repellent.
Claims (2)
散させた非吸水性熱可塑性樹脂層を積層し、且つ該非吸
水性熱可塑性樹脂層に撥水剤を含浸付着させてなり透湿
度が少なくとも200g/cm2/24hrs.（JIS L−1099A−１
法）で、耐水度が少なくとも500mm（JIS L−1092 A法）
であることを特徴とする屋根下地材。1. A non-water-absorbing thermoplastic resin layer in which a water-absorbing resin is dispersed is laminated on a non-woven fabric made of synthetic fiber, and a water-repellent agent is impregnated and adhered to the non-water-absorbing thermoplastic resin layer to obtain a moisture permeability. at least 200g / cm 2 /24hrs.(JIS L-1099A -1
Method), water resistance is at least 500 mm (JIS L-1092 A method)
Roofing base material characterized by being
酸系、ポリオキシアルキレン系、環状酸無水物共重合体
のいずれかまたはそれらの混合物である請求の範囲第１
項記載の屋根下地材。2. The water-absorbent resin is any of cellulose-based, polyacrylic acid-based, polyoxyalkylene-based, cyclic acid anhydride copolymers or a mixture thereof.
Roof base material described in paragraph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176465U JPH0728282Y2 (en) | 1987-11-20 | 1987-11-20 | Roofing base material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176465U JPH0728282Y2 (en) | 1987-11-20 | 1987-11-20 | Roofing base material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0182223U JPH0182223U (en) | 1989-06-01 |
| JPH0728282Y2 true JPH0728282Y2 (en) | 1995-06-28 |
Family
ID=31468197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987176465U Expired - Lifetime JPH0728282Y2 (en) | 1987-11-20 | 1987-11-20 | Roofing base material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728282Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4639080B2 (en) * | 2004-12-24 | 2011-02-23 | セーレン株式会社 | Waterproofing roof |
| BRPI0707056B8 (en) * | 2006-03-02 | 2021-07-27 | Daio Seishi Kk | highly air-permeable and waterproof sheet and production method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817062Y2 (en) * | 1975-10-15 | 1983-04-06 | 松下電工株式会社 | Yaneshitajizai |
| JPS5827424U (en) * | 1981-08-14 | 1983-02-22 | 松下電工株式会社 | roof underlayment |
-
1987
- 1987-11-20 JP JP1987176465U patent/JPH0728282Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0182223U (en) | 1989-06-01 |
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