JPH0932215A - Concrete roof floor externally heat insulated and waterproofed - Google Patents

Concrete roof floor externally heat insulated and waterproofed

Info

Publication number
JPH0932215A
JPH0932215A JP17888695A JP17888695A JPH0932215A JP H0932215 A JPH0932215 A JP H0932215A JP 17888695 A JP17888695 A JP 17888695A JP 17888695 A JP17888695 A JP 17888695A JP H0932215 A JPH0932215 A JP H0932215A
Authority
JP
Japan
Prior art keywords
rooftop
resin
layer
waterproof
foam
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.)
Pending
Application number
JP17888695A
Other languages
Japanese (ja)
Inventor
Masami Tanimoto
正己 谷本
Yasuhiro Aoyanagi
康博 青柳
Kazuya Fukui
和也 福井
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.)
Toray Industries Inc
3M Japan Ltd
Original Assignee
Toray Industries Inc
Sumitomo 3M 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 Toray Industries Inc, Sumitomo 3M Ltd filed Critical Toray Industries Inc
Priority to JP17888695A priority Critical patent/JPH0932215A/en
Publication of JPH0932215A publication Critical patent/JPH0932215A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To improve a waterproof function or the like by bonding the heat insulating material of closed cell type plastic expanded material to the surface of the roof floor concrete of a building, and further bonding the specified form of resin coat waterpoof material and a pebble layer to the heat insulating material. SOLUTION: A closed cell type plastic expanded material 3 made of polyurethane resin, polystyrene resin or the like is bonded to the upper surface of a roof floor concrete slab 1 via an adhesive layer 2. Then, the expanded material 3 is primered or subjected to corona discharge treatment 4 or the like, thereby bonding a resin coat waterproof material 5 such as urethane rubber. In this case, the material 5 is made to have adhesive strength equal to or above 0.2kg/cm as peel strength against the expanded material 3 at pre-curing bonding viscosity at a value between 100 and 50,000cp, a post-curing elongation percentage equal to or above 300. As a result, a high waterproof function can be provided via a double waterproof layer and weatherability can be improved.

Description

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

【0001】[0001]

【発明の属する技術分野】本発明は、建築物の屋上を構
成するコンクリートスラブやプレキャスト板などの上層
に、いわゆる屋上外断熱防水工法として断熱材と防水材
を組み合わせて露出施工してなる屋上に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rooftop which is constructed by exposing a combination of a heat insulating material and a waterproof material to an upper layer such as a concrete slab or a precast board constituting a rooftop of a building, as a so-called rooftop external heat and waterproof method. .

【0002】[0002]

【従来の技術】いわゆる屋上外断熱防水露出工法におい
て、防水材に樹脂系防水材又は軟質シート型防水材を用
いた場合、いずれも防水層が最上部に露出されており、
独立気泡型プラスチック発泡体の断熱材が防水材の裏面
に施工されているため、次のような欠点がある。先ず、 (1)断熱材の上に単に防水材を施工しており、断熱材
の目地防水処理がなされていないため、独立気泡型プラ
スチック発泡体の特長である防水性能が活用されていな
い。 そして更に、 (2)防水材が露出しているために耐侯性に限度があ
る。 (3)防水材が有機物であるため、他からの飛び火で類
焼する。 (4)樹脂系防水材及び軟質シート型防水材の両方とも
軟質であるため、その表面を歩行する際、破損が発生
し、漏水の原因となる。 (5)防水材が軟質のため烏などの鳥がくちばしでつつ
くことによって穴が簡単にあき、漏水の原因となってい
る。 そして更に、 (6)苔や藻が発生し、劣化の原因ともなっていると共
に美観が著しく低下している。
2. Description of the Related Art In a so-called rooftop heat-insulating waterproof exposure method, when a resin-based waterproof material or a soft sheet-type waterproof material is used as the waterproof material, the waterproof layer is exposed at the uppermost portion,
Since the heat insulating material of the closed-cell type plastic foam is applied to the back surface of the waterproof material, it has the following drawbacks. First, (1) Since the waterproof material is simply applied on the heat insulating material and the joint waterproofing treatment of the heat insulating material is not performed, the waterproof performance which is the characteristic of the closed-cell plastic foam is not utilized. Further, (2) the weather resistance is limited because the waterproof material is exposed. (3) Since the waterproof material is an organic material, it is burnt by a flying fire from another. (4) Since both the resin-based waterproof material and the soft sheet-type waterproof material are soft, damage may occur when walking on the surface thereof, causing water leakage. (5) Since the waterproofing material is soft, birds such as crows can be easily pierced with their beaks to cause holes and cause water leakage. Further, (6) moss and algae are generated, which is a cause of deterioration and the appearance is significantly deteriorated.

【0003】[0003]

【発明が解決しようとする課題】本発明の目的は、第1
に独立気泡型プラスチック発泡体の防水性能を活用して
二重防水を実現した屋上を提供することである。本発明
の第2の目的は、第1の目的に加えて、耐侯性を向上さ
せ、類焼を防止し得、軽歩行に耐え、そして防鳥のされ
た屋上を提供することである。本発明の第3の目的は、
第2の目的に加えて、苔、藻の発生を防止した屋上を提
供することである。
SUMMARY OF THE INVENTION The first object of the present invention is to:
It is to provide a rooftop that realizes double waterproofing by utilizing the waterproofing performance of closed-cell plastic foam. A second object of the present invention is to provide, in addition to the first object, a rooftop with improved weather resistance, capable of preventing burning, light walking, and bird protection. A third object of the present invention is to
In addition to the second purpose, it is to provide a rooftop that prevents the generation of moss and algae.

【0004】[0004]

【課題を解決するための手段】本発明の第1の態様は、
建築物の屋上コンクリート、このコンクリートの上に接
着された独立気泡型プラスチック発泡体からなる断熱
材、この断熱材の上に接着された防水材であって、硬化
前の粘度が100〜50,000cPs、硬化後の伸び
率が300%以上で、かつ接着強度が前記発泡体に対す
る剥離強度にして0.2Kg/cm以上の樹脂系塗布型防
水層、及び前記発泡体の目地にここから水漏れしないよ
うに充填された前記樹脂系塗布型防水層用樹脂を含む、
外部で断熱防水されたコンクリート製屋上である。
According to a first aspect of the present invention, there is provided:
A rooftop concrete for a building, a heat insulating material made of a closed-cell plastic foam adhered on the concrete, a waterproof material adhered on the heat insulating material, and having a viscosity before curing of 100 to 50,000 cPs. A resin-based waterproof layer having an elongation after curing of 300% or more and an adhesive strength of 0.2 Kg / cm or more as peel strength to the foam, and no water leaks from the joints of the foam. Including the resin-based waterproof layer resin filled as described above,
It is a concrete rooftop that is insulated and waterproofed outside.

【0005】この態様の1つの具体例の断面図を図1に
示す。この図において、1は屋上コンクリートスラブ、
2は接着剤層、3は独立気泡型プラスチック発泡体、4
はプライマー処理層又はコロナ放電処理層、5は樹脂系
塗膜防水材、7は独立気泡型プラスチック発泡体の接合
部、即ち目地部に樹脂系塗膜防水材が充填されている部
分である。この他に防水層5の上に紫外線などの影響防
止のために、更に表面保護層を有することが好ましい。
この保護層に用いる材料は当業者に周知である。
A cross-sectional view of one embodiment of this aspect is shown in FIG. In this figure, 1 is a rooftop concrete slab,
2 is an adhesive layer, 3 is a closed cell plastic foam, 4
Is a primer treatment layer or a corona discharge treatment layer, 5 is a resin coating waterproof material, and 7 is a joint portion of the closed-cell plastic foam, that is, a portion where the joint portion is filled with the resin coating waterproof material. In addition to this, it is preferable to further have a surface protective layer on the waterproof layer 5 in order to prevent the influence of ultraviolet rays and the like.
The materials used for this protective layer are well known to those skilled in the art.

【0006】前記独立気泡型プラスチック発泡体として
は、ポリウレタン樹脂、ポリスチレン樹脂、フェノール
樹脂などから製造される硬質発泡体や、ポリ塩化ビニル
樹脂、ポリオレフィン樹脂等から製造される半硬質発泡
体がある。これらの内でポリオレフィン樹脂、特にポリ
エチレン樹脂から製造されたものが良い。発泡倍率は見
掛け密度が0.02〜0.2g/cm3 であることが好ま
しいが、より適正な範囲は0.025〜0.05g/cm
3 である。ポリオレフィン樹脂からなる発泡体がより好
ましいのは、独立気泡型プラスチック発泡体中、最も耐
侯性、耐薬品性、耐酸・アルカリ性、耐溶剤性、耐熱性
に優れており、しかも半硬質のため、下地であるコンク
リートスラブに発生するクラックや不陸に対して、柔軟
性があるため、厚さや伸びのある方向に吸収する効果が
あるからである。また、発泡倍率が見掛け密度にして
0.025〜0.05g/cm3 、即ち40〜20倍発泡
が好ましい理由は、断熱性能からみて最も経済的発泡倍
率であり、断熱性能から見れば発泡倍率は大きいほどよ
く、一方では屋上という台風時にマイナスの風圧をポン
ピング現象的に受けるため、ある程度の材質破壊強力が
必要となるという性能バランス上の要請による。
Examples of the closed-cell plastic foams include hard foams made of polyurethane resin, polystyrene resin, phenol resin, etc., and semi-rigid foams made of polyvinyl chloride resin, polyolefin resin, etc. Among these, those manufactured from polyolefin resin, especially polyethylene resin are preferable. The expansion ratio is preferably an apparent density of 0.02 to 0.2 g / cm 3 , but a more appropriate range is 0.025 to 0.05 g / cm 3.
Is 3 . A foam made of polyolefin resin is more preferable because it has the best weather resistance, chemical resistance, acid / alkali resistance, solvent resistance, and heat resistance among the closed-cell plastic foams, and because it is semi-hard, This is because it is flexible with respect to cracks and unevenness that occur in the concrete slab, and has the effect of absorbing in the direction of thickness and elongation. In addition, the reason why the expansion ratio is 0.025 to 0.05 g / cm 3 in terms of apparent density, that is, 40 to 20 times expansion is preferable is the most economical expansion ratio in terms of heat insulation performance. The larger the value, the better. On the other hand, a negative wind pressure is received as a pumping phenomenon during a typhoon on the rooftop, which requires a certain degree of material destruction strength in terms of performance balance.

【0007】一方、前記断熱材の厚さは要求される建築
物の断熱性能によって異なり、通常2〜100mmが使用
されるが、好ましくは10〜50mmである。
On the other hand, the thickness of the heat insulating material varies depending on the required heat insulating performance of the building and is usually 2 to 100 mm, preferably 10 to 50 mm.

【0008】屋上コンクリートスラブ等の面と断熱材の
界面に使用する接着剤としては、合成ゴム系接着剤型か
水溶性アクリルエマルジョン系が好ましいが、その他コ
ンクリートと断熱材が接着するものであれば何でもよ
い。
The adhesive used at the interface between the surface of the rooftop concrete slab or the like and the heat insulating material is preferably a synthetic rubber adhesive type or a water-soluble acrylic emulsion type, but other adhesives can bond the concrete and the heat insulating material. Anything is fine.

【0009】この断熱材層の上層に施工する樹脂系塗膜
防水材としては、アクリル樹脂系、ウレタンゴム系、ク
ロロプレン系、ゴムアスファルト系、アクリルゴム系と
してJIS A 6021屋根防水用塗膜材で呼称を統
一されており、これらは全て本発明に使用可能な対象品
となるが、この内、特にウレタンゴム系が好ましく、ま
た、2液硬化型より大気中の水分を介して硬化し、塗膜
形成するタイプがより好ましい。その理由は、独立気泡
プラスチック断熱材同志の接合する目地部分への施工性
と、最上部層へ散布する無機粒子(石粒)(第2及び第
3の態様)との密着度とが良好なことにあり、更には、
防水材の機能が他の樹脂系塗膜防水材より優れていると
ころにある。またこの防水材は硬化後の伸び率が好まし
くは700%以上、更に好ましくは1000%以上であ
る。この伸び率が高いほど発泡体層と防水材層との間の
熱膨張率の相違に起因する目地部最外表面での亀裂の発
生を防止することができる。前記目地部最外表面に亀裂
が生じるとこの亀裂が伝播して下地コンクリートスラブ
に至るため防水性が劣ることになる。従ってこの伸び率
は高い程よい。
As the resin coating waterproof material applied on the upper layer of this heat insulating material layer, acrylic resin, urethane rubber based, chloroprene based, rubber asphalt based, acrylic rubber based JIS A 6021 roof waterproof coating is used. The names are standardized, and all of them are objects that can be used in the present invention. Among them, urethane rubber type is particularly preferable, and it is hardened by moisture in the atmosphere than the two-component curing type and coated. A film forming type is more preferable. The reason for this is that the workability on the joints where the closed-cell plastic heat insulation materials are joined together and the degree of adhesion with the inorganic particles (stone particles) (second and third aspects) scattered on the uppermost layer are good. Especially,
The function of the waterproof material is superior to other resin-based coating film waterproof materials. Further, the elongation percentage of the waterproof material after curing is preferably 700% or more, more preferably 1000% or more. The higher the elongation rate, the more the occurrence of cracks on the outermost surface of the joint portion due to the difference in thermal expansion coefficient between the foam layer and the waterproof material layer can be prevented. When a crack is generated on the outermost surface of the joint portion, the crack propagates to reach the concrete slab as the base material, resulting in poor waterproofness. Therefore, the higher this elongation rate is, the better.

【0010】また、独立気泡型プラスチック発泡体と樹
脂系塗膜防水材の界面には、プライマー処理やコロナ放
電処理等の接着性向上処理を施すのが好ましい。前記プ
ライマー処理剤としては、樹脂系塗膜防水材と同系統の
ものが好ましいが、プライマーとしての性能が保持され
たものであれば、特に制限されない。一方、樹脂系塗膜
防水層の厚みは要求される防水性能の耐久年数により決
定されるが、通常は0.4〜4mm程度がよく、より好ま
しくは1〜3mmである。
The interface between the closed-cell type plastic foam and the resin-based coating film waterproof material is preferably subjected to adhesion improving treatment such as primer treatment or corona discharge treatment. The primer treatment agent is preferably of the same type as the resin coating film waterproof material, but is not particularly limited as long as the performance as a primer is retained. On the other hand, the thickness of the resin-based coating film waterproof layer is determined by the required number of years of waterproof performance, but is usually about 0.4 to 4 mm, more preferably 1 to 3 mm.

【0011】本発明の第2の態様は、第1の態様におい
て、防水層の上に接着された石粒の層を更に有する。こ
の石粒は、粒径範囲0.1〜5mmが好ましく、更に好ま
しくは0.3〜3mmである。この石粒は、天然のもので
あっても、人工的に粉砕して作ったものでもいずれであ
ってもよい。この粒子の形状も球状でも、回転楕円形で
も、角張ったものでもなんでもよい。この層の石粒の散
布量は0.5〜5kg/m2 程度が好ましい。この層の
厚さは0.3〜5mmが好ましい。この石粒の接着のため
の接着剤としては、上述の従来公知の表面保護層を用い
ることができる。この保護層が硬化する前の流動状態な
いしペースト状態にある時に、この石粒を散布しこの保
護層が硬化した後、接着しなかった石粒を掃いて除くの
が一般的な施工方法である。
A second aspect of the present invention according to the first aspect further comprises a layer of stone particles adhered onto the waterproof layer. The stone particles preferably have a particle size range of 0.1 to 5 mm, more preferably 0.3 to 3 mm. The stone particles may be natural or artificially crushed. The shape of the particles may be spherical, spheroidal or angular. The amount of stone particles scattered in this layer is preferably about 0.5 to 5 kg / m 2 . The thickness of this layer is preferably 0.3-5 mm. As the adhesive for adhering the stone particles, the above-mentioned conventionally known surface protective layer can be used. When this protective layer is in a fluid state or paste state before hardening, it is a general construction method to scatter and remove the unbonded stone particles after this protective layer has been hardened and this protective layer has hardened. .

【0012】この石粒の被覆により、コンクリートの屋
上の断熱防水層の耐侯性を向上させ、類焼を防止し、軽
歩行に耐えるものとし、そして防鳥することができる。
更に、この石粒外表面に有色のセラミックを設ければ、
グレー、黒、白、赤、青、緑、オレンジ等の各種の色を
付けることができ、屋上の色を色彩豊かなものとするこ
とができる。また、これらの色の異なったものを用いて
斑点模様などの装飾が可能になる。
[0012] By covering the stone particles, the weather resistance of the heat insulating and waterproof layer of the concrete roof can be improved, fires can be prevented, light walking can be endured, and birds can be prevented.
Furthermore, if a colored ceramic is provided on the outer surface of the stone grains,
Various colors such as gray, black, white, red, blue, green, and orange can be attached, and the rooftop color can be made colorful. Further, it is possible to decorate a spot pattern by using these different colors.

【0013】この第2の態様の各層を切断した立体的透
視図を図2に示す。この図において、1〜5及び7は図
1で述べたのと同じ意味である。6は前記石粒である。
FIG. 2 shows a three-dimensional perspective view in which each layer of the second mode is cut. In this figure, 1 to 5 and 7 have the same meanings as described in FIG. 6 is the stone grain.

【0014】本発明の第3の態様は、前記第2の態様に
おいて、前記石粒が、放出性の金属イオンを含むもので
ある。放出される金属イオンとしては、銅、銀、鉛、亜
鉛及びこれらの合金等があるが、防苔、防藻性があれば
よく、銅イオンが最適と考えられる。金属イオンを放出
させるためにはその金属、金属塩又は金属酸化物を有せ
しめるのがよい。この金属イオン放出性石粒としては、
天然の又は人工的に粉砕した石粒に金属塩を被覆し、更
にセラミックを被覆したものが好ましい。ここで用いる
セラミックの具体例としては、窯業で生産されたものが
あり、セラミック被覆の例としては耐熱性ホウロウの一
種がある。耐熱骨材としての、鋼、ステンレス鋼、耐熱
合金等に、酸化アルミニウム、酸化ケイ素、酸化クロ
ム、粘土等をホウケイ酸バリウムガラスで融着被覆させ
たものも使用できる。
A third aspect of the present invention is the same as the second aspect, wherein the stone particles contain releasable metal ions. The released metal ions include copper, silver, lead, zinc and alloys thereof, but it is sufficient that they have anti-moss and anti-algal properties, and copper ions are considered optimal. In order to release the metal ion, it is preferable to have the metal, metal salt or metal oxide. As the metal ion-releasing stone particles,
A natural or artificially crushed stone grain coated with a metal salt and further coated with a ceramic is preferable. Specific examples of ceramics used here include those produced by a ceramic industry, and examples of ceramic coatings include one type of heat-resistant enamel. As the heat-resistant aggregate, steel, stainless steel, heat-resistant alloy, or the like, which is fusion-coated with aluminum oxide, silicon oxide, chromium oxide, clay, or the like, with barium borosilicate glass can also be used.

【0015】これら最外層の石粒層の施工方法は、大気
中の水分で硬化した塗膜を形成する樹脂系塗膜防水材を
塗布し、硬化している間に石粒を散布することが好まし
い。このセラミック被覆材を予め無機顔料で着色すると
耐侯性のある色彩が付与でき、美しい外観を与えること
ができる。
The method of applying these outermost stone particle layers is to apply a resin-based coating film waterproofing material that forms a coating film that is hardened by moisture in the atmosphere, and spray stone particles while hardening. preferable. By coloring the ceramic coating material with an inorganic pigment in advance, it is possible to impart a color with weather resistance and a beautiful appearance.

【0016】本発明の第3の態様の各層を切断した立体
的透視図は図2に示したのと同様である。図3及び図4
に本発明の第2及び第3の態様の、目地を含む断面図を
示す。図3の7に示すものは、独立気泡型プラスチック
発泡体の有する防水機能を生かすために発泡体同志の接
合部、即ち目地部の間隙に樹脂型防水材を注入したもの
である。また、図4の7に示すごとく、予め3で示す断
熱材の接合部、目地部を削り取って空間を作り、その空
間に樹脂系塗膜防水材を充填し、断熱材層全面が間隙な
く一体化することによって断熱材層も防水層として機能
させ、二重の防水層として使用できる。これらのことは
本発明の第1の態様についても言えることであり、この
ことが本発明の1つの特長である。
A three-dimensional perspective view of the cut layers of the third aspect of the present invention is similar to that shown in FIG. 3 and 4
FIG. 3 is a sectional view including joints according to the second and third aspects of the present invention. In FIG. 3, numeral 7 indicates that a resin waterproof material is injected into the joint between the foams, that is, the gap between the joints, in order to utilize the waterproof function of the closed-cell plastic foam. In addition, as shown in 7 of FIG. 4, the joint portion and joint portion of the heat insulating material indicated by 3 are shaved off beforehand to form a space, and the space is filled with the resin coating waterproof material so that the whole surface of the heat insulating material layer is integrated without a gap. The heat insulating material layer also functions as a waterproof layer when used as a double layer. These are also true of the first aspect of the present invention, which is one of the features of the present invention.

【0017】本発明の施工手順中、気温の変化によっ
て、独立気泡型プラスチック発泡体層3と樹脂系塗膜防
水層5の体積変化が大きいと認められた場合、特に独立
気泡型プラスチック発泡体の厚さが特に大きい場合、層
4と層5との間に体積変化防止材(伸縮による亀裂発生
防止のために用いる材料)として繊維状の有機又は無機
の織物、編み物、不織布、網状物を挟むことは本発明の
範囲に属するものである。また、1で示すコンクリート
スラブ層以外の各層の組み合わせを施工上問題がない範
囲で、工場生産し、施工現場へ持ち込むこともできる。
例えば、独立気泡型プラスチック発泡体からなる断熱
材、この断熱材の上に接着された防水材であって、硬化
前の粘度が100〜50,000cPs、硬化後の伸び
率が300%以上で、かつ接着強度が前記発泡体に対す
る剥離強度にして0.2Kg/cm以上の樹脂系塗布型防
水層、前記発泡体の目地にここから水漏れしないように
充填された前記樹脂系塗布型防水層用樹脂、及び前記樹
脂系塗布型防水層の上に被覆された厚さ0.3〜5mmの
放出性の金属イオンを含む石粒層を有する屋上被覆材が
ある。この被覆材の好ましい態様は上記被覆材を有する
コンクリート製屋上について述べたのとおなじである。
In the construction procedure of the present invention, when it is recognized that the volume change of the closed cell plastic foam layer 3 and the resin-based coating film waterproof layer 5 is large due to the change of the air temperature, in particular, of the closed cell plastic foam. When the thickness is particularly large, a fibrous organic or inorganic woven fabric, knitted fabric, non-woven fabric, or net-like product is sandwiched between the layers 4 and 5 as a volume change preventing material (a material used for preventing cracking due to expansion and contraction). This is within the scope of the present invention. Further, a combination of each layer other than the concrete slab layer indicated by 1 can be produced in a factory and brought to the construction site within a range where there is no problem in construction.
For example, a heat insulating material made of a closed cell plastic foam, a waterproof material adhered on the heat insulating material, the viscosity before curing is 100 to 50,000 cPs, the elongation after curing is 300% or more, And a resin-based waterproof layer having an adhesive strength of 0.2 kg / cm or more in terms of peeling strength from the foam, and the resin-based waterproof layer filled in the joints of the foam so that water does not leak from here. There is a roof covering material having a resin and a stone particle layer having a thickness of 0.3 to 5 mm, which is coated on the resin-based waterproof layer and contains releasable metal ions. The preferred embodiment of this coating is the same as that described for the concrete rooftop having the above coating.

【0018】[0018]

【実施例】【Example】

(実施例1、比較例1)実際の建築物の屋上コンクリー
トスラブの上に、厚さ20mm、広さ100cm×100c
m、見掛け密度0.033g/cm3 (発泡倍率30倍)
の上面コロナ放電処理した発泡ポリエチレンを目地間隔
0〜10mmで敷き、前記目地を樹脂系塗膜防水材である
一液型ウレタン系防水材−デッキコーティング・ベース
コート(商標)SC5893LE(Minnesota Mining a
nd Manufacturing Company, St.Paul, Minnesota, U.S.
A.製)で充填して硬化させ、これらの上に同じ防水材を
塗布して硬化させた(実施例1)。比較のため、前記の
目地の充填をすることなく同様の屋上コンクリートスラ
ブの上に前記発泡体を敷き、この発泡体の上に樹脂系塗
膜防水性塗料を塗布して硬化させた(比較例1)。1年
後に検査したところ、実施例1では全く漏水が認められ
なかったが、比較例1では、目視検査の結果、比較例の
目地部に亀裂が見られ、そこから雨水が侵入し、目地部
空間全体に広がっていた。この直下のコンクリートスラ
ブにクラックが発生していたため漏水が起こっていた。
(Example 1, Comparative Example 1) On a rooftop concrete slab of an actual building, a thickness of 20 mm and an area of 100 cm × 100 c
m, apparent density 0.033 g / cm 3 (foaming ratio 30 times)
The upper surface of the foamed polyethylene is laid at a joint interval of 0 to 10 mm, and the joints are a one-component urethane waterproof material which is a resin coating waterproof material-deck coating base coat (trademark) SC5893LE (Minnesota Mining a
nd Manufacturing Company, St. Paul, Minnesota, US
A.) and cured, and the same waterproof material was applied on these and cured (Example 1). For comparison, the foam was laid on a similar rooftop concrete slab without filling the joints, and a resin coating waterproof coating was applied and cured on the foam (Comparative Example 1). When examined one year later, no water leakage was observed in Example 1, but in Comparative Example 1, as a result of visual inspection, cracks were found in the joints of the Comparative Example, and rainwater penetrated from there and the joints It was spread throughout the space. Water was leaking because a crack had occurred in the concrete slab directly under this.

【0019】(実施例2)烏の住む地区で、実施例1と
同様にして発泡体、目地の充填、防水性塗膜を屋上コン
クリートスラブの上に形成し、その上に表面保護用塗膜
材(耐侯性を有する防水材)デッキコーティング・トッ
プコート(商標)SC5891LO(Minnesota Mining
and Manufacturing Company, St.Paul, Minnesota, U.
S.A.製)を塗り、この塗膜材の上に粒度範囲0.3〜5
mmの砕石を2.5g/m2(厚さ約3mm)で散布し、前記
塗料を硬化させた。一週間後に観察すると、実施例1と
同じ断熱防水層は烏のくちばしでつつかれ掘り返された
後が顕著であったが、実施例2ではくちばしでつつかれ
たあとは全くなかった。次にガスバーナーの炎を当て燃
焼試験をおこなった。屋上被覆材と炎の接触温度は約8
00℃で、接触角度を45°とし、1分間この炎を当て
た。実施例1の被覆材はこれによって全焼した。実施例
2の被覆材は着火しなかった。
(Example 2) In the area where Karasu lives, a foam, joint filling, and waterproof coating are formed on a rooftop concrete slab in the same manner as in Example 1, and a surface protective coating is formed on the foam. Material (waterproof material with weather resistance) Deck coating / Topcoat (trademark) SC5891LO (Minnesota Mining)
and Manufacturing Company, St. Paul, Minnesota, U.
(Made by SA), and a particle size range of 0.3-5 on this coating material
mm of crushed stone was sprayed at 2.5 g / m 2 (thickness: about 3 mm) to cure the coating material. When observed one week later, the same heat-insulating waterproof layer as in Example 1 was noticeable after being pecked with a crow's beak and dug back, but in Example 2 it was not after being pecked with a beak. Next, a flame of a gas burner was applied to conduct a combustion test. The contact temperature between the roof covering and the flame is about 8
The flame was applied for 1 minute at 00 ° C. with a contact angle of 45 °. The coating material of Example 1 was thereby completely burned. The coating material of Example 2 did not ignite.

【0020】(実施例3)実施例2の砕石に代えて、同
様の砕石に銅を被覆し、これにセラミックを被覆したも
の(カパーグラニュール(Cupper Granul
e)(商標)LR7000(Minnesota Mining and Man
ufacturing Company, St.Paul, Minnesota, U.S.A.製)
を用い、同様にして被覆材コンクリート上に形成した。
これと、実施例2で得られた被覆材とを苔、藻の生成に
ついて検査した。実施例2の被覆材では、1年後に苔、
藻の発生が認められたが、実施例3の被覆材では、苔、
藻の発生が全く認められなかった。
(Example 3) Instead of the crushed stone of Example 2, the same crushed stone was coated with copper, and this was coated with ceramic (Cuper Granul).
e) (trademark) LR7000 (Minnesota Mining and Man
ufacturing Company, St. Paul, Minnesota, USA)
Was used in the same manner to form a coating material on concrete.
This and the coating material obtained in Example 2 were inspected for moss and algae formation. In the coating material of Example 2, moss,
Although the generation of algae was observed, in the coating material of Example 3, moss,
No generation of algae was observed.

【0021】[0021]

【発明の効果】本発明の第1の態様によれば、二重の防
水層があるため、防水効果が高い屋上が提供される。本
発明の第2の態様によれば、二重防水層による高い防水
性に加えて、耐侯性を向上させ、類焼を防止し、軽歩行
に耐え、そして防鳥のされた屋上が提供される。本発明
の第3の態様によれば、二重防水層による高い防水性を
持ち、耐侯性を向上させ、類焼を防止し、軽歩行に耐
え、そして防鳥がされることに加えて、苔、藻の発生を
防止した屋上が提供される。
According to the first aspect of the present invention, since the double waterproof layer is provided, the roof having a high waterproof effect is provided. According to the second aspect of the present invention, in addition to high waterproofness due to the double waterproof layer, weather resistance is improved, burning is prevented, light walking is endured, and a bird-proof roof is provided. . According to the third aspect of the present invention, in addition to having a high waterproof property by the double waterproof layer, improving weather resistance, preventing fire burning, withstanding light walking, and being bird-proof, in addition to moss , A rooftop that prevents the generation of algae is provided.

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

【図1】本発明の第1の態様の断面図。FIG. 1 is a sectional view of a first embodiment of the present invention.

【図2】本発明の第2、3の態様の各層を切断した立体
的透視図。
FIG. 2 is a three-dimensional perspective view obtained by cutting each layer of the second and third aspects of the present invention.

【図3】本発明における独立気泡型発泡体の間の目地部
に防水材を充填したところを説明するための断面図。
FIG. 3 is a cross-sectional view for explaining that a joint portion between the closed-cell foams according to the present invention is filled with a waterproof material.

【図4】本発明における独立気泡型発泡体の間の目地部
に防水材を充填したところを説明するための断面図。
FIG. 4 is a cross-sectional view for explaining that a joint portion between the closed-cell foams according to the present invention is filled with a waterproof material.

【符号の説明】[Explanation of symbols]

1…屋上コンクリートスラブ 2…接着剤層 3…独立気泡型プラスチック発泡体 4…プライマー処理層 5…樹脂系塗膜防水材 6…放出性金属イオンを含み又は含まない石又は金属の
粒子 7…独立気泡型発泡体の間の目地部に防水材を充填した
部分
1 ... Rooftop concrete slab 2 ... Adhesive layer 3 ... Closed-cell plastic foam 4 ... Primer layer 5 ... Resin coating waterproof material 6 ... Stone or metal particle with or without releasing metal ion 7 ... Independent The part where the joint between the foams is filled with waterproof material

───────────────────────────────────────────────────── フロントページの続き (72)発明者 福井 和也 東京都中央区日本橋室町二丁目2番1号 東レ株式会社東京事業場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuya Fukui 2-2-1 Nihombashi Muromachi, Chuo-ku, Tokyo Toray Industries, Inc. Tokyo Plant

Claims (10)

【特許請求の範囲】[Claims] 【請求項1】 建築物の屋上コンクリート、このコンク
リートの上に接着された独立気泡型プラスチック発泡体
からなる断熱材、この断熱材の上に接着された防水材で
あって、硬化前の粘度が100〜50,000cP、硬
化後の伸び率が300%以上で、かつ接着強度が前記発
泡体に対する剥離強度にして0.2Kg/cm以上の樹脂
系塗布型防水層、及び前記発泡体の目地にここから水漏
れしないように充填された前記樹脂系塗布型防水層と同
じ種類の樹脂からなる、外部で断熱防水されたコンクリ
ート製屋上。
1. A rooftop concrete for a building, a heat insulating material composed of a closed-cell plastic foam adhered onto the concrete, and a waterproof material adhered onto the heat insulating material, wherein the viscosity before curing is 100 to 50,000 cP, the elongation after curing is 300% or more, and the adhesive strength is a resin-based waterproof layer having a peel strength of 0.2 Kg / cm or more with respect to the foam, and the joint of the foam. A concrete rooftop made of the same type of resin as the resin-based waterproof layer filled so as to prevent water from leaking from here, and having external heat insulation and waterproofing.
【請求項2】 前記独立気泡型プラスチック発泡体が発
泡ポリエチレンである請求項1の屋上。
2. The rooftop of claim 1, wherein the closed cell plastic foam is expanded polyethylene.
【請求項3】 前記発泡体の上表面がプライマー処理又
はコロナ放電処理されている請求項1又は2の屋上。
3. The rooftop according to claim 1, wherein the upper surface of the foam is treated with a primer or a corona discharge.
【請求項4】 前記防水層の上に紫外線の影響を防止す
るための表面保護層を更に有する請求項1〜3のいずれ
かの屋上。
4. The rooftop according to claim 1, further comprising a surface protective layer on the waterproof layer for preventing the influence of ultraviolet rays.
【請求項5】 前記防水層の上に接着された、厚さ0.
3〜5mmで、粒径0.1〜5mmの石粒の層を更に有する
請求項1〜3のいずれかの屋上。
5. A thickness of 0.
A rooftop according to any of claims 1 to 3, further comprising a layer of stone grains having a diameter of 3 to 5 mm and a grain size of 0.1 to 5 mm.
【請求項6】 前記石粒が表面に有色のセラミックを有
する請求項5の屋上。
6. The rooftop of claim 5, wherein the stone particles have a colored ceramic on their surface.
【請求項7】 前記石粒が、放出性の金属イオンを更に
含む請求項5の屋上。
7. The rooftop of claim 5, wherein the stone particles further comprise releasable metal ions.
【請求項8】 前記放出性の金属イオンが銅イオンであ
る請求項5の屋上。
8. The rooftop of claim 5, wherein the releasable metal ions are copper ions.
【請求項9】 前記放出性の金属イオンを含む石粒が、
天然石又は砕石に金属イオン放出用金属塩を被覆し、更
にその上をセラミックで被覆してなる請求項7又は8の
屋上。
9. A stone particle containing the releasable metal ion,
The rooftop according to claim 7 or 8, wherein natural stone or crushed stone is coated with a metal salt for releasing metal ions, and further coated with ceramic.
【請求項10】 独立気泡型プラスチック発泡体からな
る断熱材、この断熱材の上に接着された防水材であっ
て、硬化前の粘度が100〜50,000cPs、硬化
後の伸び率が300%以上で、かつ接着強度が前記発泡
体に対する剥離強度にして0.2Kg/cm以上の樹脂系
塗布型防水層、前記発泡体の目地にここから水漏れしな
いように充填された前記樹脂系塗布型防水層用樹脂、及
び前記樹脂系塗布型防水層の上に被覆された厚さ0.3
〜5mmの放出性の金属イオンを含む石粒層を有する屋上
被覆材。
10. A heat insulating material comprising a closed-cell plastic foam, a waterproof material adhered onto the heat insulating material, having a viscosity of 100 to 50,000 cPs before curing and an elongation of 300% after curing. Above, the resin coating type waterproof layer having an adhesive strength of 0.2 Kg / cm or more in terms of peeling strength from the foam, and the resin coating type filled in the joints of the foam so as not to leak water from here. Resin for waterproof layer, and thickness 0.3 coated on the resin-based waterproof layer
A roof covering having a stone grain layer containing ˜5 mm of releasable metal ions.
JP17888695A 1995-07-14 1995-07-14 Concrete roof floor externally heat insulated and waterproofed Pending JPH0932215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17888695A JPH0932215A (en) 1995-07-14 1995-07-14 Concrete roof floor externally heat insulated and waterproofed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17888695A JPH0932215A (en) 1995-07-14 1995-07-14 Concrete roof floor externally heat insulated and waterproofed

Publications (1)

Publication Number Publication Date
JPH0932215A true JPH0932215A (en) 1997-02-04

Family

ID=16056423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17888695A Pending JPH0932215A (en) 1995-07-14 1995-07-14 Concrete roof floor externally heat insulated and waterproofed

Country Status (1)

Country Link
JP (1) JPH0932215A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008069563A (en) * 2006-09-14 2008-03-27 Bufa Concrete Protection Japan Kk Heat-insulating waterproof layer for building or construction, and method of forming the same
JP2009019452A (en) * 2007-07-13 2009-01-29 Masaru Kondo Building waterproofing method
JP2014148795A (en) * 2013-01-31 2014-08-21 Okamoto Kosan Kk Heat-insulation method of existing roof
JP2016142084A (en) * 2015-02-04 2016-08-08 多摩防水技研株式会社 Construction method of urethane waterproof layer and insulation waterproof material
CN106836663A (en) * 2016-12-26 2017-06-13 北京利信诚工程技术有限公司 The construction method of water-proof insulating roof
CN107435417A (en) * 2017-06-20 2017-12-05 中国华西企业有限公司 Roofing foam concrete construction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008069563A (en) * 2006-09-14 2008-03-27 Bufa Concrete Protection Japan Kk Heat-insulating waterproof layer for building or construction, and method of forming the same
JP2009019452A (en) * 2007-07-13 2009-01-29 Masaru Kondo Building waterproofing method
JP2014148795A (en) * 2013-01-31 2014-08-21 Okamoto Kosan Kk Heat-insulation method of existing roof
JP2016142084A (en) * 2015-02-04 2016-08-08 多摩防水技研株式会社 Construction method of urethane waterproof layer and insulation waterproof material
CN106836663A (en) * 2016-12-26 2017-06-13 北京利信诚工程技术有限公司 The construction method of water-proof insulating roof
CN106836663B (en) * 2016-12-26 2019-07-23 北京利信诚工程技术有限公司 The construction method of water-proof insulating roof
CN107435417A (en) * 2017-06-20 2017-12-05 中国华西企业有限公司 Roofing foam concrete construction

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