JP2013234484A - Termite repelling method in foundation heat insulating method - Google Patents
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本発明は、基礎断熱工法により建築された建物屋内へのシロアリ侵入を阻止する方法に関する。 The present invention relates to a method for preventing termite intrusion into a building built by a basic heat insulation method.
ヤマトシロアリ、イエシロアリなど甚大な被害を及ぼすシロアリは、地下に生息し、地中から基礎や床束その他の地面と建物とをつなぐものを伝わって建物内に侵入することが知られている。これに対し、「住宅性能表示制度 日本住宅性能表示基準・評価方法基準 技術解説(新築住宅)2010」(非特許文献1)では、有効な防蟻措置として、特に温暖地の建築物に対して、(i)地盤を鉄筋コンクリート造りのべた基礎で覆うか、又は布基礎の場合には布基礎の内周部の地盤を布基礎と鉄筋で一体化された防湿コンクリートとで覆うこと、(ii)有効な土壌処理を施すこと、あるいは(iii)これらと同等の防蟻性能がある措置を行うこと、が記載されている。
一方、近年、省エネルギー対策の一環として基礎断熱工法が普及しつつある。基礎断熱工法は、建物の基礎の壁面に断熱材を施工する工法であり、従来の木床の直下に断熱材を設ける床断熱工法に比べて、断熱気密性を確保しやすいというメリットがある。しかしながら、外気が侵入する床断熱工法における床下空間に比べて、基礎断熱工法における断熱気密性の高い床下空間は、温暖で風の当たらない空間を好むシロアリにとっては恰好の生息場所となり得る。また、例えば、基礎の側壁面に発泡樹脂からなる断熱材を設ける基礎断熱工法による建築物においては、たとえ非特許文献1に記載の上記(i)の対策を取ったとしても、比較的やわらかい発泡樹脂をシロアリが食い破りながら地中から這い上がり、木材からなる建築物の土台に到達するおそれがあり、発泡樹脂を地面付近には設けず木床の直下に設けるのみである床断熱工法による建築物に比べて、シロアリの被害が深刻化するおそれがある。
Termites that cause enormous damage, such as Yamato termites and moth termites, are known to inhabit underground and invade buildings through the ground, floor bundles and other ground-to-building connections. On the other hand, in “Housing Performance Display System Japanese Housing Performance Display Standard / Evaluation Method Standard Technical Explanation (Newly Built House) 2010” (Non-patent Document 1), as an effective ant protection measure, especially for buildings in warm regions (I) Cover the ground with a solid foundation made of reinforced concrete, or, in the case of a cloth foundation, cover the ground on the inner periphery of the cloth foundation with moisture-proof concrete integrated with the cloth foundation, (ii) It describes that an effective soil treatment is performed, or (iii) a measure having an ant-proofing performance equivalent to these is performed.
On the other hand, in recent years, the basic thermal insulation method is becoming popular as part of energy conservation measures. The basic heat insulation method is a method of constructing a heat insulating material on the wall surface of the foundation of a building, and has an advantage that it is easy to ensure heat insulating airtightness compared to a floor heat insulating method in which a heat insulating material is provided directly under a wooden floor. However, the underfloor space with high heat insulation and airtightness in the basic heat insulation method can be a good habitat for termites who prefer warm and non-windy spaces as compared to the underfloor space in the floor heat insulation method where outside air invades. Further, for example, in a building by a basic heat insulation method in which a heat insulating material made of foamed resin is provided on the side wall surface of the foundation, even if the measure (i) described in Non-Patent Document 1 is taken, relatively soft foaming is performed. There is a risk that the termites will crawl up from the ground while termites eat away, and there is a risk of reaching the foundation of a building made of wood, and building with a floor insulation method that does not provide foamed resin near the ground but just under the wooden floor There is a risk that termite damage will become more serious compared to things.
シロアリの木材に対する被害を食い止める手段として、一般的には、合成ピレスロイド系、ネオニコチノイド系、トリアゾール系などの化学殺虫剤を木材に混入(注圧、塗布、吹付、又は浸漬)するか、あるいはこれらを予め混入した木材を用いることが行われる。これは、木材を主要な餌とするシロアリにいわば毒を食わせることにより(毒餌)、殺虫する手法である。しかしながら、この手法は、毒餌である木材をシロアリに食わせることが前提となっており、シロアリが木材を食することを事前に防ぐ手法ではない。
また、シロアリが木材を食することを防ぐ方法として、例えば、基礎側壁の外側に断熱材を設ける基礎断熱工法(基礎断熱、外貼り)において、コンクリート製の基礎及び発泡樹脂製の断熱材と木製の土台との間に防蟻テープを配置し、また、断熱材の外側に張り出した蟻返しを設けた防蟻機能を持つ基礎断熱構造が提案されている(特許文献1)。
As a means to prevent termite damage to wood, generally, chemical insecticides such as synthetic pyrethroids, neonicotinoids, and triazoles are mixed into the wood (pressure, application, spraying, or dipping), or The use of wood mixed with these in advance is performed. This is a technique for killing insects by feeding poisons on termites whose main food is wood (poisonous bait). However, this method is based on the premise that termites eat wood, which is poisonous bait, and is not a method for preventing termites from eating wood in advance.
In addition, as a method for preventing termites from eating wood, for example, in a basic thermal insulation method (basic thermal insulation, external sticking) in which a thermal insulation material is provided outside the foundation side wall, a concrete foundation and a thermal insulation material made of foamed resin and wooden There has been proposed a basic heat insulating structure having an ant-proof function in which an ant-proof tape is arranged between the base and the ant-repellent protruding over the outside of the heat-insulating material (Patent Document 1).
しかしながら、上記方法は、断熱材をシロアリが食い破ることはやむを得ないとした方法であり、断熱材の損傷は著しい。また、シロアリは、少なくとも断熱材を食い破って或いは断熱材と基礎コンクリートとの隙間を通って、土台の下に設けられた防蟻テープまでは容易に到達することができる。この際、土台と基礎との間に設けられた防蟻テープに穴等の欠陥がある場合や、防蟻テープ同士の間に隙間がある場合には、シロアリは、これらの欠陥部分を通って容易に木製の土台部分へと侵入する。 However, the above method is a method in which it is inevitable that termites eat away the heat insulating material, and the heat insulating material is significantly damaged. Moreover, the termites can easily reach the ant-proof tape provided under the foundation by at least breaking through the heat insulating material or through the gap between the heat insulating material and the foundation concrete. At this time, if there is a defect such as a hole in the ant protection tape provided between the foundation and the foundation, or if there is a gap between the ant protection tapes, the termites pass through these defective parts. It easily penetrates into the wooden base.
以上の通り、基礎断熱工法は、床断熱工法に比べ、断熱性に優れており、省エネルギーの観点からは好ましい工法であるが、一方、シロアリの被害が深刻化しやすいという問題があった。本発明は、基礎断熱工法による建築物においても、シロアリの被害を顕著に低減させることを目的とし、特に、餌である木材に到達させる前にシロアリを退治すること、すなわち、シロアリを建築物の木材部分へと侵入させないことを目的とする。 As described above, the basic heat insulation method is superior to the floor heat insulation method, and is a preferable method from the viewpoint of energy saving. On the other hand, there is a problem that termite damage is likely to be serious. The present invention aims to remarkably reduce termite damage even in a building by a basic thermal insulation method, and in particular, extinguish termites before reaching the wood as bait, that is, termites are removed from the building. The purpose is to prevent entry into the wood.
本発明者は、上記目的に関し、鋭意研究を行った結果、基礎断熱工法の建築物において、次の箇所がシロアリの主要な侵入経路となり得ることを突き止めた:
(a)断熱材と基礎との間に生じうる隙間、
(b)断熱材の内部、
(c)建築物内部側の基礎側壁の表面及び内貼りされた断熱材の表面、
(d)断熱材同士の継ぎ目による隙間、
(e)基礎を貫通して設けられた配管及びケーブルの取出し口と基礎との間にできるわずかな隙間、及び工事期間に設けられる排水口、並びに
(f)地面と建築物木材部分とに通ずる床束、配管、及びケーブルの表面のうち、建築物内部側の表面。
As a result of diligent research regarding the above object, the present inventor has found that the following points can be the main entry routes for termites in the building of the basic thermal insulation method:
(A) a gap that can occur between the heat insulating material and the foundation,
(B) inside the heat insulating material,
(C) The surface of the foundation side wall on the inner side of the building and the surface of the heat insulating material attached inside,
(D) a gap due to a joint between the heat insulating materials,
(E) A small gap formed between the foundation of the pipe and cable provided through the foundation and the foundation, and a drain outlet provided during the construction period, and (f) the ground and the building wood part. Among the surfaces of floor bundles, piping, and cables, the surface on the inside of the building.
本発明は、これらの潜在的なシロアリ侵入経路をすべて封鎖することにより、シロアリが建築物の木材部分に到達することを防ぐものである。具体的には、基礎断熱工法による建築物において:
(1)断熱材を基礎打設時の型枠として用いるのではなく、形成された基礎に断熱材を貼り合わせる場合、基礎に断熱材を貼り合わせる前に、ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤を、基礎における断熱材を貼り合わせる部分か、又は断熱材の基礎へと貼り合わせる面の少なくとも一方に予め施用すること、
(2)断熱材として、発泡樹脂の重量基準で2500ppm以上のホウ酸塩を含有する発泡樹脂製断熱材を用いること、
(3)建築物内部側の断熱材で被覆されていない基礎の側壁面、及び内貼りされた断熱材がある場合には基礎に内貼りした後の断熱材の露出表面に、ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤を施用すること、
(4)基礎に貼り合わせた後の断熱材同士の継ぎ目に、防蟻剤を含有する気密シール剤を充填すること、
(5)基礎を貫通して設けられた配管及びケーブルの取出し口と基礎との隙間、並びに工事期間中に設けられる排水口を、モルタルで塞ぎ、さらに防蟻剤を含有する気密シール剤を充填すること、並びに
(6)地面と建築物木材部分とに通ずる床束、配管、及びケーブルの建築物内部側にある表面に、ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤を施用すること、
のすべてを行うことを特徴とする。上記対策のいずれか1つでも欠ければ、その箇所を通路としてシロアリは建築物の木材部分へと到達し得る。したがって、上記対策のすべてを行うことが、シロアリの木材部分への侵入阻止において重要である。
The present invention prevents termites from reaching the wood part of the building by blocking all these potential termite entry routes. Specifically, in buildings by the basic insulation method:
(1) Rather than using a heat insulating material as a formwork at the time of foundation placement, when bonding a heat insulating material to a formed foundation, before bonding the heat insulating material to the foundation, polyethylene glycol, water, and 10 to 40 Preliminarily applying a liquid agent containing a boric acid-based compound in weight percent to at least one of the part where the heat insulating material is bonded to the foundation or the surface bonded to the foundation of the heat insulating material;
(2) As a heat insulating material, using a foamed resin heat insulating material containing a borate of 2500 ppm or more based on the weight of the foamed resin;
(3) If there is a side wall surface of the foundation not covered with the heat insulating material on the inner side of the building, and if there is an internally attached heat insulating material, polyethylene glycol, water on the exposed surface of the heat insulating material after being internally attached to the foundation Applying a solution containing 10 to 40% by weight of a boric acid compound,
(4) Filling the joint between the heat insulating materials after being bonded to the foundation with an airtight sealant containing an anti-anticide;
(5) Cover the gap between the pipe and cable outlet and the foundation provided through the foundation and the drain outlet provided during the construction period with mortar, and fill with an airtight sealant containing an anti-anticide And (6) Polyethylene glycol, water, and 10 to 40% by weight of boric acid compound are added to the surface on the inner side of the floor bundles, pipes, and cables leading to the ground and the building wood part. Applying the liquid containing,
It is characterized by performing all of the above. If any one of the above measures is lacking, termites can reach the wood part of the building using the passage as a passage. Therefore, taking all of the above measures is important in preventing the entry of termites into the wood part.
本発明の方法によれば、シロアリの被害が深刻化しやすいと考えられる基礎断熱工法による建築物においても、シロアリの被害を顕著に低減させることができる。シロアリ防除のための従来の薬剤を混入させた木材を建築物に用いる方法は、木材を餌とするシロアリにいわば毒餌を食わせる方法であるが、この方法は、シロアリが建築物の木材部分に到達することが前提となっている。本発明の方法は、従来の方法とは異なり、シロアリが建築物の木材部分に到達する前に退治または撤退させ、シロアリを木材部分へと侵入させないものである。本発明の方法は、建築物の基礎部分(床下部分)を、シロアリの侵入に対するバリヤーとして機能させるという、新しい発想に基づいている。 According to the method of the present invention, it is possible to remarkably reduce termite damage even in a building by a basic thermal insulation method, which is considered to cause serious damage to termites. The conventional method of using wood mixed with chemicals for termite control in buildings is to feed termites that feed on poisonous bait, but this method uses termites on the wood part of the building. It is assumed that it will be reached. The method of the present invention is different from the conventional method in that the termites are exterminated or withdrawn before reaching the wood part of the building, and the termites do not enter the wood part. The method of the present invention is based on a new idea that the building foundation (underfloor) functions as a barrier against termite intrusion.
本発明の方法は、基礎断熱工法による建築物に対して行われる。基礎断熱工法とは、建築物の最下部の構造である基礎に対して、断熱措置を施す工法であり、一般的には、基礎の外側壁面及び/または内側壁面に押し出しスチレンボード、発泡ポリスチレンなどの断熱材を施工する。基礎には、一般に、布基礎とべた基礎があるが、本発明の方法はいずれの基礎に用いてもよい。シロアリの被害を抑えるという観点からは、建築物の底面全体が覆われておりかつ底面と基礎立ち上がりとが一体化している、べた基礎とすることが好ましいが、本発明の方法によれば、布基礎の場合でも、シロアリの被害を抑えることが可能である。 The method of this invention is performed with respect to the building by a basic heat insulation construction method. The basic heat insulation method is a method of applying heat insulation to the foundation, which is the lowest structure of the building, and is generally extruded to the outer wall surface and / or inner wall surface of the foundation, such as styrene board, expanded polystyrene, etc. Install the insulation. There are generally fabric foundations and solid foundations, but the method of the present invention may be used on any foundation. From the viewpoint of suppressing termite damage, it is preferable to use a solid foundation in which the entire bottom surface of the building is covered and the bottom surface and the foundation rising are integrated, but according to the method of the present invention, Even in the case of the foundation, it is possible to suppress the damage of termites.
本発明の方法は、建築中の建物(新築物件)にも適用することができるし、また、建築後の建物(既存物件)の基礎に断熱材を後から貼り合わせる場合にも適用することができる。したがって、本発明でいう「基礎断熱工法による建築物」は、建築時に基礎断熱を施した建物のみではなく、建築後に基礎断熱を施す建物も含む。 The method of the present invention can be applied to a building under construction (newly built property), and can also be applied to the case where a heat insulating material is pasted on the foundation of a building (existing property) after construction. it can. Therefore, the “building by the basic heat insulation method” in the present invention includes not only a building that has been subjected to basic heat insulation during construction but also a building that performs basic heat insulation after construction.
本発明では、基礎断熱工法による建築物において、シロアリの侵入経路となり得るすべての箇所に対して対策を講じることにより、シロアリが建築物の木材部分に到達する前に退治または撤退させる。建築物の木材部分とは、建築物において木材が使われている部分をいう。一般的には、床組から上の部分に木材が使われている。
シロアリは、暗くて温暖であり、また、湿気のあるところに生息する。したがって、部材同士の継ぎ目などに生じる狭い隙間は、シロアリの恰好の通路となり得る。また、シロアリは、外敵から身を守りかつ太陽光の直射や乾燥を防ぐために、餌である木材以外のものであっても食いちぎって、蟻道(チューブ)を構築する習性がある。したがって、餌である木材がシロアリの巣である地中から離れた場所に(高い場所に)ある場合であっても、地面と木材とをつなぐものに蟻道を構築することができれば、蟻道を通って木材(餌)へと到達することができる。このようなシロアリの習性を考慮すると、シロアリの建築物木材部分への侵入経路としては、以下の箇所が考えられる:
(a)断熱材と基礎との間に生じうる隙間、
(b)断熱材の内部、
(c)建築物内部側の基礎側壁の表面及び内貼りされた断熱材の表面、
(d)断熱材同士の継ぎ目による隙間、
(e)基礎を貫通して設けられた配管及びケーブルの取出し口と基礎との間にできるわずかな隙間、並びに工事期間に設けられる排水口、並びに
(f)地面と建築物木材部分とに通ずる床束、配管、及びケーブルの表面のうち、建築物内部側の表面。
In the present invention, in the building by the basic thermal insulation method, measures are taken for all the locations that can become the intrusion route of termites, so that the termites are exterminated or withdrawn before reaching the wood part of the building. A timber part of a building is a part where timber is used in a building. Generally, wood is used in the upper part from the floor set.
Termites live in dark, warm and humid places. Therefore, a narrow gap generated at a joint between members can be a favorable path for termites. Also, termites have the habit of building ant roads (tubes) by biting out anything other than wood, which is bait, in order to protect themselves from external enemies and prevent direct sunlight and drying. Therefore, even if the timber that is the bait is in a place away from the ground that is the nest of the termite (at a high place), if the ant tract can be constructed to connect the ground and the timber, Can reach the wood (food) through. Considering such termite habits, the following points can be considered as entry routes to termite building wood:
(A) a gap that can occur between the heat insulating material and the foundation,
(B) inside the heat insulating material,
(C) The surface of the foundation side wall on the inner side of the building and the surface of the heat insulating material attached inside,
(D) a gap due to a joint between the heat insulating materials,
(E) A small gap formed between the foundation of the pipe and cable provided through the foundation and the foundation, a drain outlet provided during the construction period, and (f) a communication with the ground and the building wood part. Among the surfaces of floor bundles, piping, and cables, the surface on the inside of the building.
1.(a)断熱材と基礎との間に生じうる隙間に対する対策
基礎断熱工法においては、基礎の壁面の外側及び/または内側に、断熱材を施工する。断熱材の施工に際しては、例えば、基礎コンクリートの打設時に、押出しスチレンボードや発泡ポリスチレンなどの発泡系断熱材を型枠として用いて内部にコンクリートを流し入れるようにすれば、基礎壁コンクリートと断熱材とが一体化して隙間が生じないため、シロアリが通過できず好ましい。しかしながら、経済的な観点から、断熱材を基礎壁面の外側または内側のいずれか一方に使用する場合も多く、この場合は、通常、形成された基礎の壁面に対して断熱材を後から貼り合わせると考えられる。また、このような断熱材の後貼りは、今後、リフォーム市場でも普及することが予測される。このように、断熱材を基礎壁面に後貼りする場合には、断熱材と基礎との間に、必ず、シロアリが通過できる程度の隙間が生じると言ってよい。上記の通り、シロアリは狭い隙間を好むから、断熱材と基礎との間に生じた隙間は、シロアリの恰好の通路となり得る。
1. (A) Measures against gaps that may occur between the heat insulating material and the foundation In the basic heat insulating method, the heat insulating material is applied to the outside and / or the inside of the wall surface of the foundation. When constructing the heat insulating material, for example, if the concrete is poured into the interior using a foamed heat insulating material such as extruded styrene board or expanded polystyrene as a mold when placing the basic concrete, the foundation wall concrete and the heat insulating material Since no gap is formed by integrating the termites, it is preferable that termites cannot pass through. However, from an economical point of view, heat insulation is often used either on the outside or inside of the foundation wall, and in this case, the insulation is usually pasted on the formed foundation wall later. it is conceivable that. Moreover, such post-sticking of a heat insulating material is expected to spread in the renovation market in the future. In this way, when the heat insulating material is pasted on the foundation wall surface, it can be said that a gap is formed between the heat insulating material and the foundation so that termites can pass therethrough. As described above, since termites prefer a narrow gap, the gap created between the heat insulating material and the foundation can be a favorable path for termites.
本発明では、まず、この断熱材と基礎との隙間をシロアリが通過することを防ぐために、断熱材を基礎へと貼り合わせる前に、少なくとも断熱材と基礎との隙間に当たる部分、すなわち、基礎壁面における断熱材を貼り合わせる部分又は断熱材における基礎壁へと貼り合わせる面の少なくとも一方に、予め、ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤を施用する。なお、断熱材を基礎コンクリート打設時の型枠として用いる場合には、断熱材と基礎との間に隙間が生じないから、この処理を行う必要はない。
施用される液剤における適するホウ酸系化合物としては、例えば、ホウ酸;ホウ砂及び八ホウ酸二ナトリウム四水和物などのホウ酸ナトリウム;ホウ酸亜鉛;ホウ酸カルシウム;ホウ酸ナトリウムカルシウム;ホウ酸カルシウムマグネシウム;ホウ酸トリメチル(ボレステル)及びボロン酸などの有機ホウ酸塩、ならびにこれらの任意の混合物が挙げられる。これらの中でも、八ホウ酸二ナトリウム四水和物(化学式Na2B8O13・4H2O、「DOT」ともいう。)は、シロアリに対する効果が高く、また、水に対する溶解度が高いため好ましい。
In the present invention, first, in order to prevent termites from passing through the gap between the heat insulating material and the foundation, before bonding the heat insulating material to the foundation, at least the portion that hits the gap between the heat insulating material and the foundation, that is, the foundation wall surface A liquid agent containing polyethylene glycol, water, and 10 to 40% by weight of a boric acid compound is applied in advance to at least one of the portion of the heat insulating material to be bonded to or the surface of the heat insulating material to be bonded to the base wall. In addition, when using a heat insulating material as a formwork at the time of foundation concrete pouring, since a clearance gap does not arise between a heat insulating material and a foundation, it is not necessary to perform this process.
Suitable boric acid compounds in the applied liquid include, for example, boric acid; sodium borates such as borax and disodium octaborate tetrahydrate; zinc borate; calcium borate; sodium calcium borate; Calcium magnesium acid; organic borates such as trimethyl borate (borestel) and boronic acid, and any mixtures thereof. Among these, disodium octaborate tetrahydrate (referred Formula Na 2 B 8 O 13 · 4H 2 O, also called "DOT".) Is highly effective against termites, also because of their high solubility in water .
本発明においては、高濃度、具体的には、10〜40重量%のホウ酸系化合物を含有する液剤を用いて建築部材を処理することが必要である。ホウ酸系化合物の濃度が20〜40重量%であると、イエシロアリに対する防除効果が高まるから、より好ましい。さらに好ましくは23〜40重量%である。例えば、ホウ酸系化合物の濃度が10重量%未満であれば、シロアリに対する防除効果は殆ど得られず、特に、蟻道の形成を妨げる効果は得られない。しかしながら、水への溶解度が高い八ホウ酸二ナトリウム四水和物であっても、水への溶解度は20℃で10%程度である。水性の液剤に高濃度のホウ酸塩を含有させるためには、液剤中に、グリコール類を添加することが必要である。グリコール類としては、水との親和性が高く、また毒性が少ない、ポリエチレングリコールが最適である。用いるポリエチレングリコールの分子量及び濃度は、特に限定されないが、液剤の粘度を考慮すれば、平均分子量が200〜300、好ましくは200程度のポリエチレングリコールを、液剤中に20〜25重量%程度含有させることが好ましい。 In this invention, it is necessary to process a building member using the liquid agent containing a high concentration, specifically 10-40 weight% boric-acid type compound. It is more preferable that the concentration of the boric acid compound is 20 to 40% by weight because the control effect against termites is enhanced. More preferably, it is 23-40 weight%. For example, if the concentration of the boric acid compound is less than 10% by weight, the control effect on termites is hardly obtained, and in particular, the effect of preventing the formation of ant tract is not obtained. However, even disodium octaborate tetrahydrate with high solubility in water has a solubility in water of about 10% at 20 ° C. In order to contain a high concentration borate in an aqueous solution, it is necessary to add glycols to the solution. As glycols, polyethylene glycol is most suitable because of its high affinity with water and low toxicity. The molecular weight and concentration of polyethylene glycol to be used are not particularly limited, but considering the viscosity of the solution, the polyethylene glycol having an average molecular weight of 200 to 300, preferably about 200, should be contained in the solution by about 20 to 25% by weight. Is preferred.
ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤は、米国のナイサス社(Nisus Corporation)より、商品名「BORA−CARE」(登録商標)として、市販されている。BORA−CARE(登録商標)は、平均分子量200のポリエチレングリコール、水、及び約40重量%の八ホウ酸二ナトリウム四水和物(DOT)を含み、これをそのまま又は適宜水で希釈して、本発明の液剤として用いることができる。例えば、等容量の水と希釈(1対1希釈)すると、約23重量%のDOTを含有する液剤とすることができる。 A solution containing polyethylene glycol, water, and 10 to 40% by weight of a boric acid compound is commercially available under the trade name “Bora-CARE” (registered trademark) from Nisus Corporation of the United States. BORA-CARE (registered trademark) contains polyethylene glycol having an average molecular weight of 200, water, and about 40% by weight of disodium octaborate tetrahydrate (DOT), which is diluted as it is or appropriately with water, It can be used as the liquid agent of the present invention. For example, when diluted with an equal volume of water (one-to-one dilution), a solution containing about 23% by weight of DOT can be obtained.
こうして得られるポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤は、単にホウ酸塩を水に溶解した液とは異なり、高濃度のホウ酸塩を有しており、シロアリの防除効果が極めて高い。また、ポリエチレングリコールは、ホウ酸塩の高い濃度を達成するだけではなく、建築部材に液剤を塗布した際に、液剤が建築部材の内部に浸透する効果も付与する。これにより、液剤を塗布した表面だけではなく、建築部材の内部におけるシロアリによる蟻道の形成も効果的に妨げることができる。また、建築部材の内部に浸透した液剤中のホウ酸塩は、ポリエチレングリコールとそれに保持される水とを媒質として、建築部材内部で、湿度の高い方へと移動(拡散)する傾向がある。これは、高湿度環境を好むシロアリの防除に当たり、効率的である。また、泥や糞を唾液で固めて作られた蟻道には水分が存在しているため、本発明の液剤中のホウ酸塩は、蟻道付近に偏在しやすく、それ以上の蟻道の形成を効率的に妨げることができる。 The liquid agent containing polyethylene glycol, water, and 10 to 40% by weight boric acid compound thus obtained has a high concentration of borate unlike a solution obtained by simply dissolving borate in water. The termite control effect is extremely high. In addition, polyethylene glycol not only achieves a high borate concentration, but also imparts the effect that the liquid penetrates into the building member when the solution is applied to the building member. Thereby, not only the surface which apply | coated the liquid agent but formation of the ant road by the termite in the inside of a building member can also be prevented effectively. In addition, the borate in the liquid agent that has penetrated into the building member tends to move (diffuse) toward the higher humidity inside the building member using polyethylene glycol and water held therein as a medium. This is efficient in controlling termites that prefer high humidity environments. In addition, since water is present in the ant canal made by solidifying mud and feces with saliva, the borate in the liquid of the present invention tends to be unevenly distributed in the vicinity of the ant canal. Formation can be effectively prevented.
本発明において液剤を基礎壁面又は断熱材に施用する方法は、特に限定されず、当業界で行われている通常の手法を用いることができる。例えば、基礎壁面に施用する場合には、液剤を、刷毛又はローラー等で塗布することができるし、また、スプレー等で吹付けしてもよい。また、断熱材に施用する場合には、基礎壁面の場合と同様に塗布又は吹付けしてもよいし、また、液剤中に断熱材を浸漬してもよい。しかし、一般に、断熱材の表面に比べて基礎壁面の方が液剤との親和性が高く、液剤を保持しやすいということができ、また、施工も容易であることから、予め組み上がった基礎壁面に液剤を塗布又は吹付けし、その上から断熱材を貼り合わせることは好ましい。 In the present invention, the method of applying the liquid agent to the basic wall surface or the heat insulating material is not particularly limited, and a normal method performed in the art can be used. For example, when applying to a foundation wall surface, a liquid agent can be apply | coated with a brush, a roller, etc., and you may spray by a spray etc. Moreover, when applying to a heat insulating material, you may apply | coat or spray similarly to the case of a base wall surface, and may immerse a heat insulating material in a liquid agent. However, in general, the foundation wall surface is higher in affinity with the liquid agent than the surface of the heat insulating material, and it is easy to hold the liquid agent. It is preferable to apply or spray a liquid agent on the substrate, and bond a heat insulating material from the top.
基礎の材質は特に限定されない。一般的には、基礎はコンクリートを含有する材料で形成される。
基礎壁面又は断熱材への液剤の施用量は、例えば、ホウ酸系化合物の濃度が23重量%の液剤の場合、10m2/L以下、例えば5〜10m2/Lが好ましい。
The material of the foundation is not particularly limited. In general, the foundation is formed of a material containing concrete.
Application rates of liquid to the underlying wall or thermal insulation, for example, when the concentration is 23% by weight of a solution of boric acid compound, 10 m 2 / L or less, for example 5 to 10 m 2 / L are preferred.
基礎壁面又は断熱材へと液剤を施用した後は、施用面を雨等で濡らさないように養生し、できるだけ速やかに断熱材を基礎に貼り合わせることが好ましい。断熱材と基礎との貼り合わせには、従来から用いられている方法を用いることができ、例えば、モルタル点接着、接着剤、コンクリート用ファスナー等を用いることができる。 After applying the liquid agent to the foundation wall surface or the heat insulating material, it is preferable to cure the application surface so as not to get wet with rain or the like, and to bond the heat insulating material to the foundation as soon as possible. Conventionally used methods can be used for bonding the heat insulating material and the foundation. For example, mortar point adhesion, adhesive, concrete fasteners, and the like can be used.
断熱材の基礎への貼り合わせは、内貼り(基礎壁面のうちの建物内部側に貼り合わせる)であっても外貼り(基礎壁面のうちの建物外周側へ貼り合わせる)であってもよいが、べた基礎と内貼りとの組合せは特に好ましい。
2.(b)断熱材の内部に対する対策
前述の通り、シロアリは餌である木材以外であっても食い破り、通路とすることができる。断熱材は一般的に柔らかいため、食い破りやすく、また、保温性があり、外敵や直射日光からも身を守ることができるためシロアリの恰好のすみかにもなり得る。さらに、断熱材の内部をシロアリが移動する場合は、外観からシロアリの被害を発見することが難しい。本発明では、断熱材として、発泡樹脂の重量基準で2500ppm以上のホウ酸塩を含有する発泡樹脂製断熱材を用いることにより、断熱材の内部をシロアリが経路とすることを防ぐ。
The heat insulating material may be attached to the foundation either internally (attached to the inside of the building on the foundation wall) or externally (attached to the outer periphery of the foundation wall). The combination of a solid foundation and an inner paste is particularly preferred.
2. (B) Measures against the inside of the heat insulating material As described above, termites can break through even if they are other than wood that is bait, and can be used as a passage. Insulating materials are generally soft, so they are easy to break, have heat retention properties, and can protect themselves from external enemies and direct sunlight, which can be a good place for termites. Furthermore, when termites move inside the heat insulating material, it is difficult to find the damage of the termites from the appearance. In the present invention, by using a foamed resin heat insulating material containing a borate of 2500 ppm or more based on the weight of the foamed resin as the heat insulating material, termites are prevented from being routed inside the heat insulating material.
断熱材に用いる発泡樹脂としては、発泡ポリスチレン、発泡ポリエチレン、ウレタンフォーム、フェノールフォームなどを挙げることができる。中でも発泡ポリスチレンは、高濃度のホウ酸塩を含有できるので、好ましい。 Examples of the foamed resin used for the heat insulating material include foamed polystyrene, foamed polyethylene, urethane foam, and phenol foam. Among these, expanded polystyrene is preferable because it can contain a high concentration of borate.
発泡樹脂に含有させるホウ酸塩としては、メタホウ酸ナトリウム、四ホウ酸二ナトリウム、五ホウ酸二ナトリウム、六ホウ酸二ナトリウム、八ホウ酸二ナトリウム、二ホウ酸四ナトリウム、及びこれらの水和物、並びにこれらの混合物が挙げられる。これらの中でも特に、八ホウ酸二ナトリウム四水和物は、シロアリに対する効果が高いため好ましい。 Examples of the borate contained in the foamed resin include sodium metaborate, disodium tetraborate, disodium pentaborate, disodium hexaborate, disodium octaborate, tetrasodium diborate, and hydration thereof. Products, and mixtures thereof. Among these, disodium octaborate tetrahydrate is particularly preferable because of its high effect on termites.
発泡樹脂中には、発泡樹脂の重量基準で2500ppm以上のホウ酸塩を含有させることが必要である。これよりホウ酸塩濃度が低い場合には、シロアリの防除効果が殆ど得られない。ホウ酸塩の濃度は、好ましくは3000〜10000ppm、より好ましくは5000〜10000ppmである。また、ホウ酸塩は、発泡樹脂製断熱材の表面のみではなく、内部の全体にわたり分布していることが好ましい。このような発泡樹脂製断熱材は、例えば、米国のAFM社(AFM Corporation)より、商品名「Perform Guard」(登録商標)として、市販されている。Perform Guard(登録商標)は、ポリスチレンの重量基準で約5000〜10000ppmのホウ酸ナトリウムを含有する発泡ポリスチレン製の断熱材である。Perform Guard(登録商標)は、ポリスチレンビーズの予備発泡時に八ホウ酸二ナトリウム四水和物の熱水溶液を噴霧することを含む方法で製造されており、このため、完全発泡後の樹脂の内部全体にわたりホウ酸塩が存在している。 In the foamed resin, it is necessary to contain a borate of 2500 ppm or more based on the weight of the foamed resin. When the borate concentration is lower than this, the termite control effect is hardly obtained. The concentration of the borate is preferably 3000 to 10000 ppm, more preferably 5000 to 10000 ppm. Further, it is preferable that the borate is distributed not only on the surface of the foamed resin heat insulating material but also throughout the interior. Such a foamed resin heat insulating material is commercially available, for example, from AFM Corporation of the United States under the trade name “Perform Guard” (registered trademark). Perform Guard® is a foamed polystyrene insulation containing about 5000-10000 ppm sodium borate based on the weight of polystyrene. Perform Guard (R) is manufactured in a process that involves spraying a hot aqueous solution of disodium octaborate tetrahydrate during the pre-expansion of polystyrene beads, and thus the entire interior of the resin after complete expansion Borate is present throughout.
ホウ酸塩を含有する発泡樹脂製断熱材は、基礎断熱等に用いられる通常の断熱材と同様に所望の寸法及び形状に加工して用いることができる。施用する断熱材の厚みは、断熱防蟻性能の観点から、25mm以上が好ましく、50mm以上がより好ましい。 The foamed resin heat insulating material containing borate can be processed into a desired size and shape in the same manner as a normal heat insulating material used for basic heat insulation or the like. The thickness of the heat insulating material to be applied is preferably 25 mm or more, more preferably 50 mm or more, from the viewpoint of the heat insulating ant performance.
ホウ酸塩を含有する発泡樹脂製断熱材は、施用前及び施用後において、紫外線や雨から保護することが好ましい。
3.(c)建築物内部側の基礎側壁の表面及び内貼りされた断熱材の表面に対する対策
上記(b)の対策を行うことによりシロアリは断熱材の内部を通過できなくなるが、しかし、断熱材の外部表面の上を登る可能性は否定できない。特に、建物の内部側の基礎側壁面は、暗くかつ湿気が多いという条件が揃う場合があり、シロアリの経路となる可能性がある。また、内貼りされた断熱材がある場合には、建物の内部側の断熱材の表面についても同様である。本発明では、建物内部側の基礎側壁及び断熱材の表面をシロアリが登る可能性を防ぐために、建築物内部側の断熱材で被覆されていない基礎の側壁面、及び内貼りされた断熱材の露出表面に、ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤を施用する。ここで、「断熱材の露出表面」とは、基礎に接触する面以外の断熱材の面をいう。また、「基礎の側壁面」とは、基礎の立ち上がり部分の(地面に対して垂直方向にある)面を言う。
The foamed resin heat insulating material containing borate is preferably protected from ultraviolet rays and rain before and after application.
3. (C) Measures against the surface of the foundation side wall on the inside of the building and the surface of the heat insulating material attached to the inside. By taking the measure of (b) above, termites cannot pass through the inside of the heat insulating material. The possibility of climbing on the external surface cannot be denied. In particular, the foundation side wall surface on the inner side of the building may be in a dark and humid condition, which may be a termite path. Moreover, when there exists a heat insulating material stuck inside, it is the same also about the surface of the heat insulating material inside the building. In the present invention, in order to prevent the possibility of termites climbing the surface of the foundation side wall and the heat insulating material inside the building, the side wall surface of the foundation that is not covered with the heat insulating material inside the building, A solution containing polyethylene glycol, water, and 10 to 40% by weight of a boric acid compound is applied to the exposed surface. Here, the “exposed surface of the heat insulating material” refers to a surface of the heat insulating material other than the surface in contact with the foundation. Further, the “side wall surface of the foundation” refers to a surface (in a direction perpendicular to the ground) of the rising portion of the foundation.
断熱材及び基礎の表面に施用できる液剤としては、上記1で説明したのと同じ液剤を用いることができる。上記1で説明したように、最も好ましいホウ酸系化合物は、八ホウ酸二ナトリウム四水和物であり、また、ホウ酸系化合物の濃度は、好ましくは20〜40重量%、さらに好ましくは23〜40重量%である。また、施用方法は、例えば、断熱材を基礎へと内貼りした後に、建築物内部側の断熱材の露出表面及び基礎の側壁面に、上記1で説明したのと同様に、塗布又は吹付けとすることができる。あるいは、断熱材の露出表面への施用は、基礎へ貼り合わせる前の断熱材の全ての面(通常は、6面)に液剤を塗布又は吹付けするか、又は基礎へ貼り合わせる前の断熱材を液剤中に浸漬することにより行うこともできる。断熱材表面及び基礎側壁面への液剤の施用量は、例えば、ホウ酸系化合物の濃度が23重量%の液剤の場合、10m2/L以下、例えば、5〜10m2/Lが好ましい。 As the liquid agent that can be applied to the heat insulating material and the surface of the foundation, the same liquid agent as described in 1 above can be used. As explained in 1 above, the most preferred boric acid compound is disodium octaborate tetrahydrate, and the concentration of the boric acid compound is preferably 20 to 40% by weight, more preferably 23%. -40% by weight. In addition, for example, after applying the heat insulating material to the foundation, the application method is applied or sprayed on the exposed surface of the heat insulating material on the inside of the building and the side wall surface of the foundation in the same manner as described in 1 above. It can be. Alternatively, the application of the heat insulating material to the exposed surface may be performed by applying or spraying the liquid agent to all surfaces (usually six surfaces) of the heat insulating material before being bonded to the foundation, or before being bonded to the foundation. Can also be carried out by immersing in a solution. Application rates of liquid to the heat insulating material surface and base side walls, for example, when the concentration is 23% by weight of a solution of boric acid compound, 10 m 2 / L or less, for example, 5 to 10 m 2 / L are preferred.
4.(d)断熱材同士の継ぎ目による隙間に対する対策
上記2で説明したように、断熱材として特定濃度以上のホウ酸塩を含有する断熱材を用い、かつ、上記3で説明したように、断熱材の表面をホウ酸塩を含む液剤で処理したとしても、断熱材を貼り合わせた際の断熱材同士の継ぎ目部分に生じる狭い隙間をシロアリが経路とする可能性がある。本発明では、基礎に貼り合わせた後の断熱材同士の間に生じ得る継ぎ目に、防蟻剤を含有する気密シール剤を充填する。
4). (D) Measures against gaps due to joints between heat-insulating materials As described in 2 above, heat-insulating materials containing borate at a specific concentration or more are used as heat-insulating materials, and as described in 3 above, heat-insulating materials Even if the surface is treated with a borate-containing liquid agent, there is a possibility that the termites use the narrow gap generated at the joint portion between the heat insulating materials when the heat insulating materials are bonded together as a route. In the present invention, an airtight sealant containing an ant-proofing agent is filled in a joint that may be formed between the heat insulating materials after being bonded to the foundation.
防蟻剤としては、通常のシロアリ対策に利用されているものを用いることができ、例えば、アレスリン、ビフェントリン等のピレスロイド系防蟻剤、シラフルオフェン等のピレスロイド様化合物、イミダクロプロリド等のクロルニコチル系防蟻剤、ヒバ中性油等の天然物系防蟻剤、ホウ酸塩等の無機化合物系防蟻剤などが挙げられる。防蟻剤を含有する気密シール剤は、防蟻気密シール剤や防蟻接着剤として市販されており、当業者が入手可能である。例えば、米国のAFM社(AFM Corporation)より、商品名「Do−All−Ply」(登録商標)のホウ酸塩を含有する防蟻気密シール剤が市販されている。 As the termite-proofing agent, those used for usual termite countermeasures can be used, for example, pyrethroid-type termite-proofing agents such as allethrin and bifenthrin, pyrethroid-like compounds such as silafluophene, and chlornicotyl-type such as imidacloprolide. Examples include ant-proofing agents, natural product-based ant-proofing agents such as Hiba neutral oil, and inorganic compound-based ant-proofing agents such as borate. An airtight sealant containing an antproofing agent is commercially available as an antproof airtight sealant or an antproof adhesive, and can be obtained by those skilled in the art. For example, an ant-proof hermetic sealant containing a borate of the trade name “Do-All-Ply” (registered trademark) is commercially available from AFM Corporation of the United States.
気密シール剤の隙間への充填方法は、特に限定されず、コーキングガンを用いて隙間を充填するなどの通常の方法で行えばよい。
5.(e)基礎を貫通して設けられた配管及びケーブルの取出し口と基礎との間にできるわずかな隙間、並びに工事期間に設けられる排水口に対する対策
上記1〜4の対策を行った場合でも、基礎壁に外部と内部とを結ぶ狭い隙間がある場合には、その隙間を通ってシロアリが建築物内部に侵入する可能性がある。このような隙間としては、給排水管等の配管や電気配線等のケーブルを取り出すために基礎を貫通して設けられる取出し口と基礎との間の狭い隙間や、工事期間に設けられる排水用の穴の塞ぎ忘れが考えられる。本発明では、こうした隙間をモルタルで埋めた後、さらに防蟻剤を含有する気密シール剤を充填して塞ぐ。
The method for filling the gap with the hermetic sealant is not particularly limited, and may be performed by a normal method such as filling the gap with a caulking gun.
5. (E) Measures against the slight gap between the pipe and cable outlet and the foundation provided through the foundation and the drain outlet provided during the construction period Even when the measures 1 to 4 above are performed, When there is a narrow gap connecting the outside and the inside of the foundation wall, termites may enter the building through the gap. Such gaps include narrow gaps between the outlet and the foundation provided through the foundation in order to take out piping such as water supply and drainage pipes and cables such as electrical wiring, and drainage holes provided during the construction period. Forgetting to close it. In the present invention, after filling such a gap with mortar, it is further filled with an airtight sealing agent containing an anti-anticide.
防蟻剤を含有する気密シール剤としては、上記4で説明したのと同じものを用いることができ、また、上記4で説明したのと同じ方法で施用することができる。
気密シール剤を充填した後、さらに、上記1及び3で説明した液剤を上からブラシ塗布またはスプレー等により施用することは好ましい。より好ましくは、上記隙間に気密シール剤を充填した後、その周囲の半径5cm以上、さらに好ましくは15cm以上、さらに好ましくは30cm以上に、上記液剤をさらに施用する。このようにすることにより、シロアリは、上記隙間を通過しなくなるだけではなく、上記隙間に近寄ることすらしなくなる。
As the hermetic sealant containing the termite-proofing agent, the same one as described in the above 4 can be used, and it can be applied by the same method as described in the above 4.
After filling with the hermetic sealant, it is preferable to apply the liquid agent described in the above 1 and 3 from above by brush application or spraying. More preferably, after the airtight sealing agent is filled in the gap, the liquid agent is further applied to a surrounding radius of 5 cm or more, more preferably 15 cm or more, and further preferably 30 cm or more. By doing in this way, termites do not pass through the gap but also do not even approach the gap.
6.(f)地面と建築物木材部分とに通ずる床束、配管、及びケーブルの表面のうち、建築物内部側の表面に対する対策
上記1〜5の対策を行った場合でも、建築物の内部側(暗所)に地面に接する配管等がある場合には、その表面を伝って、シロアリが建築物内部へと侵入する可能性がある。特に、浴室、洗面、台所、トイレ等の給排水管の表面は、内外の温度差により湿気がつきやすく、シロアリが好む経路となり得る。本発明では、これらの地面と建築物木材部分との両方に接する部材、具体的には、給排水管やガス管などの配管、電気配線地下ケーブルなどのケーブル、及び床束の表面のうち、建築物内部側の表面に、ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤を施用する。液剤としては、上記1で説明したのと同じ液剤を用いることができる。上記1で説明したように、最も好ましいホウ酸系化合物は、八ホウ酸二ナトリウム四水和物である。また、ホウ酸系化合物の濃度は、好ましくは20〜40重量%、さらに好ましくは23〜40重量%、最も好ましくは40重量%である。また、施用方法は、上記1で説明したのと同様に、例えば、塗布又は吹付けとすることができる。液剤は、給排水管やガス管などの配管、電気配線地下ケーブルなどのケーブル、及び床束の、建築物内部側にあり、かつ地上に露出している全表面に対し施用することが好ましい。液剤の施用量は、10m2/L以下、例えば5〜10m2/Lが好ましい。また、給排水管の表面は結露しやすく、塗布された液剤が薄まりやすい傾向があるから、高濃度のホウ酸系化合物を有する液剤、例えば40重量%を使用することがより好ましい。
6). (F) Of the surface of floor bundles, pipes, and cables leading to the ground and the building wood part, measures against the surface on the inside of the building Even when the measures 1 to 5 above are taken, the inside of the building ( If there is a pipe in contact with the ground in the dark), termites may enter the building through the surface. In particular, the surfaces of water supply and drainage pipes such as bathrooms, washbasins, kitchens, and toilets can easily become damp due to temperature differences between the inside and outside, and can be a path that termites prefer. In the present invention, members that are in contact with both the ground and the building wood part, specifically, piping such as water supply and drainage pipes and gas pipes, cables such as electric wiring underground cables, and the surface of the floor bundle, the building A liquid agent containing polyethylene glycol, water, and 10 to 40% by weight of a boric acid compound is applied to the surface on the inside of the object. As the liquid agent, the same liquid agent as described in 1 above can be used. As explained in 1 above, the most preferred boric acid compound is disodium octaborate tetrahydrate. The concentration of the boric acid compound is preferably 20 to 40% by weight, more preferably 23 to 40% by weight, and most preferably 40% by weight. Moreover, the application method can be applied or sprayed, for example, as described in 1 above. The liquid agent is preferably applied to the entire surface of pipes such as water supply / drainage pipes and gas pipes, cables such as electric wiring underground cables, and floor bundles on the inside of the building and exposed to the ground. Application rates of solutions, 10 m 2 / L or less, for example 5 to 10 m 2 / L are preferred. Moreover, since the surface of the water supply / drainage tube is likely to condense and the applied liquid agent tends to be thinned, it is more preferable to use a liquid agent having a high concentration boric acid compound, for example, 40% by weight.
7.その他
上記1〜6の対策に加えて、さらに、断熱材の上下端部と基礎との接合部分に、上記4で説明した防蟻剤を含有する気密シール剤を充填することが好ましい。
7). Other In addition to the measures 1 to 6 described above, it is preferable to further fill the airtight sealant containing the ant-preventive agent described in 4 above at the joint between the upper and lower ends of the heat insulating material and the foundation.
また、基礎をべた基礎とし、べた基礎の下地又はべた基礎の上に上記2で説明した発泡樹脂の重量基準で2500ppm以上のホウ酸塩を含有する発泡樹脂製断熱材を敷き詰めると、断熱効果が高まり、かつ、地中からのシロアリの侵入を阻止する効果も高まるから、好ましい。この際、断熱材は厚さ100mm以上のものを用いることが好ましく、また、千鳥貼りに二重に敷き詰めることが好ましい。 In addition, when the foundation is a solid foundation, and a foamed resin heat insulating material containing 2500 ppm or more of borate on the basis of the weight of the foamed resin described in 2 above is spread on the foundation of the solid foundation or the solid foundation, the heat insulation effect is obtained. It is preferable because it increases the effect of preventing termites from invading from the ground. At this time, it is preferable to use a heat insulating material having a thickness of 100 mm or more, and it is preferable to double-ply the zigzag.
また、既存建築物の断熱補修工事の場合には、床下の地面に防湿フィルムを敷き込み、その上の全面に上記2で説明した発泡樹脂の重量基準で2500ppm以上のホウ酸塩を含有する発泡樹脂製断熱材を敷き詰めると、断熱効果が高まり、かつ、シロアリの侵入阻止効果も高まるから、好ましい。この際、断熱材は厚さ100mm以上のものを用いることが好ましい。 In addition, in the case of heat insulation repair work for an existing building, a moisture-proof film is laid on the ground under the floor, and a foam containing at least 2500 ppm borate based on the weight of the foamed resin described in 2 above is provided on the entire surface. It is preferable to spread a resin heat insulating material because the heat insulating effect is enhanced and the termite penetration preventing effect is also enhanced. At this time, it is preferable to use a heat insulating material having a thickness of 100 mm or more.
本発明の方法は、主に地下に生息するシロアリの建築物木材部分への侵入の阻止に特に有効である。そのようなシロアリの例としては、イエシロアリやヤマトシロアリが挙げられる。また、比較的乾燥に強いカンモンシロアリやダイコクシロアリの阻止にも有効である。 The method of the present invention is particularly effective in preventing intrusion of termite building wood parts that mainly inhabit underground. Examples of such termites include termites and Yamato termites. In addition, it is also effective in preventing common dry termites and radish termites that are resistant to drying.
本発明の方法は、新築物件、既存物件、また、布基礎、べた基礎、また、断熱材の内貼り、外貼りを問わず、基礎断熱工法によるあらゆる建築物におけるシロアリの木材部分への侵入阻止に有効である。特に、従来、シロアリの侵入阻止が難しかった、べた基礎による建築物に断熱材を後から外貼りする場合や、布基礎による建築物であっても、高いシロアリ防除効果を奏することができる。 The method of the present invention prevents the entry of termites into the wood part of any building by the basic thermal insulation method regardless of whether it is a newly constructed property, an existing property, a fabric foundation, a solid foundation, or an internal or external insulation material. It is effective for. In particular, it is difficult to prevent the entry of termites in the past, and even when a heat insulating material is pasted on a solid foundation building later, or even a building foundation, a high termite control effect can be achieved.
(参考例1)ホウ酸塩を含有する発泡樹脂製断熱材と、高濃度のホウ酸系化合物を含有する液剤との併用による効果
断熱材として、5000〜10000ppmのホウ酸塩を含有する発泡ポリスチレン製断熱材(AFM Corporation製、商品名:Perform Guard(登録商標))(15cm×61cm×2.5cm)と、ホウ酸塩を含有しない発泡ポリスチレン製断熱材(同サイズ)とを用い、各々について、六面にBORA−CARE(登録商標)(Nisus Corporation製)の水2倍希釈液(ホウ酸塩濃度:23重量%)を吹付けたものと、吹付けていないものの両方を用意した。これらを、暗所の室内において、シロアリの生息する土を薄く敷いたトレイの上に15cm×2.5cmの面が下となるように立てて置き、頂部に餌木を置いた。結果は以下の通りである。
(Reference Example 1) Effect of combined use of a foamed resin heat insulating material containing borate and a liquid agent containing a high concentration boric acid compound As a heat insulating material, expanded polystyrene containing 5000 to 10,000 ppm borate Heat insulation material (manufactured by AFM Corporation, trade name: Perform Guard (registered trademark)) (15 cm × 61 cm × 2.5 cm) and heat insulation material made of expanded polystyrene not containing borate (same size) Both the Bora-CARE (registered trademark) (manufactured by Nisus Corporation) water-double diluted solution (borate concentration: 23% by weight) and the non-sprayed one were prepared. These were placed in a dark room with a 15 cm × 2.5 cm surface facing down on a tray in which termite-inhabited soil was thinly laid, and a bait was placed on the top. The results are as follows.
ホウ酸塩を含有する断熱材において、液剤を塗布しなかったものは、断熱材の内部には蟻道は形成されなかったが、断熱材の外表面に蟻道が形成された。一方、表面に液剤を塗布したホウ酸塩非含有の断熱材では、断熱材の外表面には蟻道は形成されなかったが、断熱材の内部に蟻道が形成された。ホウ酸塩を含有する断熱材と液剤の塗布とを併用したものについては、内部にも外表面にも蟻道の形成がなく、餌木の食害がなかった。 In the heat insulating material containing borate, in which the liquid agent was not applied, the ant road was not formed inside the heat insulating material, but the ant road was formed on the outer surface of the heat insulating material. On the other hand, in the borate-free heat insulating material coated with a liquid agent on the surface, no ant road was formed on the outer surface of the heat insulating material, but an ant road was formed inside the heat insulating material. For the combination of the borate-containing heat insulating material and the application of the liquid agent, there was no formation of ant tracts on the inside or on the outer surface, and there was no feeding damage.
本発明の方法の施工例を以下に示すが、本発明の方法は、これらの態様に限定されるものではない。
(施工例1)べた基礎の既存住宅に対し、断熱材を外貼り又は内貼り、或いは内外共貼りする。施工は、晴天の日に行う。断熱材として、50mm厚さのPerform Guard(登録商標)タイプ9(AFM Corporation製)(ホウ酸塩濃度:約5000〜10000ppm)を用いる。断熱材は、基礎に貼り合わせる前に、6面全面に、BORA−CARE(登録商標)(Nisus Corporation製)の水2倍希釈液(ホウ酸塩濃度:23重量%)を10m2/L以下の範囲で塗布する。また、基礎壁面の断熱材を貼り合わせる部分を含む、基礎の建物内部側の側壁面全体にも、予め、BORA−CARE(登録商標)の水2倍希釈液(ホウ酸塩濃度:23重量%)を塗布する。断熱材と基礎との接着には、コンクリート用ファスナーを使用する。基礎に貼り合わせた後の断熱材同士の継ぎ目に、防蟻気密シール剤All−Do−Ply(登録商標)(AFM Corporation製)をコーキングガンを用いて充填する。外貼りした断熱材の外側は、メッシュ下地を用いたモルタル仕上げとする。また、基礎壁にひび割れ等がある場合や、基礎を貫通する配管と基礎壁との間に隙間がある場合には、隙間をモルタルで塞いだ後、防蟻気密シール剤All−Do−Ply(登録商標)を充填する。さらに、上記隙間に充填した防蟻気密シール剤の周囲の半径30cm以上、並びに床束、地中へと続く給排水管及びガス管等の配管、また、地中へと続くケーブルの表面のうちの建物内部側の表面に、BORA−CARE(登録商標)の原液(ホウ酸塩濃度:40重量%)を塗布する。
Although the example of construction of the method of this invention is shown below, the method of this invention is not limited to these aspects.
(Construction Example 1) A heat insulating material is externally or internally attached, or internally and externally attached to an existing house with a solid foundation. Work on a sunny day. As a heat insulating material, 50 mm thick Perform Guard (registered trademark) type 9 (manufactured by AFM Corporation) (borate concentration: about 5000 to 10,000 ppm) is used. Before the heat insulating material is bonded to the foundation, a double water dilute solution (Borate concentration: 23% by weight) of BORA-CARE (registered trademark) (manufactured by Nisus Corporation) is 10 m 2 / L or less on the entire 6 surfaces. Apply in the range. Also, the entire side wall surface on the inside of the foundation building, including the portion where the heat insulating material of the foundation wall surface is pasted, is preliminarily diluted with a double water solution of BORA-CARE (registered trademark) (borate concentration: 23% by weight). ) Is applied. Use concrete fasteners to bond the insulation to the foundation. The joint between the heat insulating materials after being bonded to the foundation is filled with an ant-proof airtight sealant All-Do-Ply (registered trademark) (manufactured by AFM Corporation) using a caulking gun. The outside of the heat-insulating material that is externally attached is a mortar finish using a mesh base. In addition, when there is a crack in the foundation wall or when there is a gap between the pipe penetrating the foundation and the foundation wall, after closing the gap with mortar, the ant-proof airtight sealant All-Do-Ply ( (Registered trademark). Further, a radius of 30 cm or more around the ant-proof hermetic sealant filled in the gap, and floor bundles, pipes such as water supply and drainage pipes and gas pipes leading to the ground, and cable surfaces leading to the ground A BARA-CARE (registered trademark) undiluted solution (borate concentration: 40% by weight) is applied to the surface inside the building.
(施工例2)べた基礎の新築住宅に対し、断熱材を内貼りする。べた基礎の底板を施工する前に、地面に防湿フィルムを敷き込み、その上の全面に断熱材を敷き並べるか、或いは、形成されたべた基礎の底板の上に断熱材を敷き並べる。これらの断熱材としては、厚さ10cm以上のPerform Guard(登録商標)タイプ9(AFM Corporation製)(ホウ酸塩濃度:約5000〜10000ppm)を用いる。次いで、断熱材を基礎側壁に内貼りするが、内貼りする前に、基礎の建物内部側の側壁の全面に、BORA−CARE(登録商標)(Nisus Corporation製)の水2倍希釈液(ホウ酸塩濃度:23重量%)を10m2/L以下の範囲でスプレー又はブラシ塗布する。内貼り断熱材には、厚さ50mmの断熱材Perform Guard(登録商標)タイプ9を用い、コンクリートファスナーにより貼り合わせる。基礎に貼り合わせた後の断熱材の表面に、BORA−CARE(登録商標)の水2倍希釈液(ホウ酸塩濃度:23重量%)を10m2/L以下の範囲でスプレー又はブラシ塗布する。また、基礎に貼り合わせた後の断熱材同士の継ぎ目、及び基礎の底板の上に敷き並べた断熱材同時の継ぎ目に、防蟻気密シール剤All−Do−Ply(登録商標)(AFM Corporation製)をコーキングガンを用いて充填する。また、基礎壁にひび割れ等がある場合や、基礎を貫通する配管と基礎壁との間に隙間がある場合には、隙間をモルタルで塞いだ後、同様に、防蟻気密シール剤All−Do−Ply(登録商標)を充填する。さらに、床束、地中へと続く給排水管及びガス管等の配管、並びに地中へと続くケーブルの表面のうち、建築物内部側にある表面に、BORA−CARE(登録商標)の原液(ホウ酸塩濃度:40重量%)をスプレー塗布する。 (Construction Example 2) A heat insulating material is pasted on a solid foundation new house. Before constructing the bottom plate of the solid foundation, a moisture-proof film is laid on the ground, and a heat insulating material is laid on the entire surface, or a heat insulating material is laid on the bottom plate of the formed solid foundation. As these heat insulating materials, Perform Guard (registered trademark) type 9 (manufactured by AFM Corporation) (borate concentration: about 5000 to 10,000 ppm) having a thickness of 10 cm or more is used. Next, a heat insulating material is applied to the side wall of the foundation. The acid salt concentration: 23% by weight) is sprayed or brushed in the range of 10 m 2 / L or less. For the inner heat insulating material, heat insulating material Perform Guard (registered trademark) type 9 having a thickness of 50 mm is used and bonded by a concrete fastener. Spray or brush the BORAR-CARE (registered trademark) water double dilution (borate concentration: 23 wt%) within a range of 10 m 2 / L or less on the surface of the heat insulating material after being bonded to the foundation. . In addition, an ant-proof airtight sealant All-Do-Ply (registered trademark) (manufactured by AFM Corporation) is formed on the joint between the heat insulating materials after being bonded to the foundation and the joint at the same time on the bottom plate of the foundation. ) Using a caulking gun. In addition, when there is a crack in the foundation wall or when there is a gap between the pipe penetrating the foundation and the foundation wall, after closing the gap with mortar, similarly, the ant-proof airtight sealant All-Do Fill with Ply®. Furthermore, among the surfaces of floor bundles, pipes such as water supply and drainage pipes and gas pipes leading to the ground, and cables leading to the ground, the BARA-CARE (registered trademark) stock solution ( (Borate concentration: 40% by weight) is spray applied.
(施工例3)布基礎の既存住宅に対し、断熱材を内貼り又は外貼り、或いは内外共貼りする。基礎の建物内部側の地面(床下の地面)に、防湿フィルムを敷き込み、その上の全面に厚さ10cm以上の断熱材を敷き並べる。また、基礎側壁に貼り合わせる断熱材としては、厚さ50mmのものを用いる。これらの断熱材としては、Perform Guard(登録商標)タイプ9(AFM Corporation製)(ホウ酸塩濃度:約5000〜10000ppm)を用いる。また、これらの断熱材は、敷き並べる前又は基礎側壁に貼り合わせる前に、予め、6面全面に、BORA−CARE(登録商標)(Nisus Corporation製)の水2倍希釈液(ホウ酸塩濃度:23重量%)を10m2/L以下の範囲で浸漬又はスプレー塗布などにより施用する。断熱材と基礎との接着には、コンクリート用ファスナーを使用する。断熱材を貼り合わせた後、基礎の建物内部側の側壁面全体(貼り合わされた及び敷き並べられた断熱材の表面を含む)に、BORA−CARE(登録商標)の水2倍希釈液(ホウ酸塩濃度:23重量%)を塗布する。基礎に貼り合わせた後の断熱材同士の継ぎ目と、防湿フィルム上に敷き並べた断熱材同士の継ぎ目に、防蟻気密シール剤All−Do−Ply(登録商標)(AFM Corporation製)をコーキングガンを用いて充填する。外貼りした断熱材の外側は、メッシュ下地を用いたモルタル仕上げとする。また、基礎壁にひび割れ等がある場合や、基礎を貫通する配管と基礎壁との間に隙間がある場合には、隙間をモルタルで塞いだ後、防蟻気密シール剤All−Do−Ply(登録商標)を充填する。さらに、上記隙間に充填した防蟻気密シール剤の周囲の半径30cm以上、並びに床束、地中へと続く給排水管及びガス管等の配管、また、地中へと続くケーブルの表面のうちの建物内部側の表面に、BORA−CARE(登録商標)の原液(ホウ酸塩濃度:40重量%)をスプレー塗布する。 (Construction Example 3) A heat insulating material is internally or externally attached, or internally and externally attached to a cloth-based existing house. A moisture-proof film is laid on the ground on the inside of the foundation building (the floor under the floor), and a heat insulating material having a thickness of 10 cm or more is laid on the entire surface. Moreover, as a heat insulating material bonded to a basic side wall, a 50-mm-thick thing is used. As these heat insulating materials, Perform Guard (registered trademark) type 9 (manufactured by AFM Corporation) (borate concentration: about 5000 to 10,000 ppm) is used. In addition, these heat insulating materials are preliminarily laminated or bonded to the foundation side wall, in advance, on the entire surface of 6 surfaces, BORA-CARE (registered trademark) (manufactured by Nisus Corporation) with a double water dilution (borate concentration). : 23 wt%) is applied in the range of 10 m 2 / L or less by dipping or spray coating. Use concrete fasteners to bond the insulation to the foundation. After bonding the heat insulating material, the entire side wall surface (including the surface of the bonded and laid heat insulating material) on the inner side of the foundation building is diluted with a double BORA-CARE (registered trademark) water (Acid salt concentration: 23% by weight) is applied. A caulking gun with an ant-proof airtight sealant All-Do-Ply (registered trademark) (manufactured by AFM Corporation) at the joint between the heat insulating materials after being bonded to the foundation and the joint between the heat insulating materials laid on the moisture-proof film Fill with. The outside of the heat-insulating material that is externally attached is a mortar finish using a mesh base. In addition, when there is a crack in the foundation wall or when there is a gap between the pipe penetrating the foundation and the foundation wall, after closing the gap with mortar, the ant-proof airtight sealant All-Do-Ply ( (Registered trademark). Further, a radius of 30 cm or more around the ant-proof hermetic sealant filled in the gap, and floor bundles, pipes such as water supply and drainage pipes and gas pipes leading to the ground, and cable surfaces leading to the ground Spray the BARA-CARE (registered trademark) undiluted solution (borate concentration: 40% by weight) on the surface inside the building.
(施工例4)厚さ10cmのPerform Guard(登録商標)タイプ9(AFM Corporation製)(ホウ酸塩濃度:約5000〜10000ppm)を基礎コンクリート打設時の型枠として用いる。断熱材の地面と接する面は、防湿防水シートで被覆をする。完成した基礎壁の建築物内部側に、断熱材の上から、BORA−CARE(登録商標)(Nisus Corporation製)の水2倍希釈液(ホウ酸塩濃度:23重量%)を10m2/L以下の範囲でブラシ塗布又はスプレー塗布する。また、断熱材同士の継ぎ目に、防蟻気密シール剤All−Do−Ply(登録商標)(AFM Corporation製)をコーキングガンを用いて充填する。建築物の外側にある断熱材の表面は、メッシュ下地を用いたモルタル仕上げとする。基礎を貫通する配管と基礎壁との間に隙間がある場合には、隙間をモルタルで塞いだ後、防蟻気密シール剤All−Do−Ply(登録商標)を充填する。さらに、上記隙間に充填した防蟻気密シール剤の周囲の半径30cm以上、並びに床束、地中へと続く給排水管及びガス管等の配管、また、地中へと続くケーブルの表面のうちの建物内部側の表面に、BORA−CARE(登録商標)の原液(ホウ酸塩濃度:40重量%)をスプレー塗布する。 (Construction Example 4) A 10-cm thick Perform Guard (registered trademark) type 9 (manufactured by AFM Corporation) (borate concentration: about 5000 to 10000 ppm) is used as a formwork during foundation concrete placing. The surface of the heat insulating material in contact with the ground is covered with a moisture-proof waterproof sheet. 10 m 2 / L of BORAR-CARE (registered trademark) (manufactured by NISUS Corporation) 2 times water dilution (borate concentration: 23% by weight) from the top of the heat insulating material on the interior side of the completed foundation wall Apply brush or spray in the following range. In addition, a joint between the heat insulating materials is filled with an ant-proof hermetic sealant All-Do-Ply (registered trademark) (manufactured by AFM Corporation) using a caulking gun. The surface of the heat insulating material on the outside of the building shall be mortar finished using a mesh base. When there is a gap between the pipe penetrating the foundation and the foundation wall, the gap is closed with mortar and then filled with an ant-proof airtight sealant All-Do-Ply (registered trademark). Further, a radius of 30 cm or more around the ant-proof hermetic sealant filled in the gap, and floor bundles, pipes such as water supply and drainage pipes and gas pipes leading to the ground, and cable surfaces leading to the ground Spray the BARA-CARE (registered trademark) undiluted solution (borate concentration: 40% by weight) on the surface inside the building.
Claims (5)
(1)断熱材を基礎打設時の型枠として用いるのではなく、形成された基礎に断熱材を貼り合わせる場合、基礎に断熱材を貼り合わせる前に、ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤を、基礎における断熱材を貼り合わせる部分か、又は断熱材の基礎壁へと貼り合わせる面の少なくとも一方に予め施用すること、
(2)断熱材として、発泡樹脂の重量基準で2500ppm以上のホウ酸塩を含有する発泡樹脂製断熱材を用いること、
(3)建築物内部側の断熱材で被覆されていない基礎の側壁面、及び内貼りされた断熱材がある場合には基礎に内貼りした後の断熱材の露出表面に、ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤を施用すること、
(4)基礎に貼り合わせた後の断熱材同士の継ぎ目に、防蟻剤を含有する気密シール剤を充填すること、
(5)基礎を貫通して設けられた配管及びケーブルの取出し口と基礎との隙間、並びに工事期間中に設けられる排水口を、モルタルで塞ぎ、さらに防蟻剤を含有する気密シール剤を充填すること、並びに
(6)地面と建築物木材部分とに通ずる床束、配管、及びケーブルの建築物内部側にある表面に、ポリエチレングリコール、水、及び10〜40重量%のホウ酸系化合物を含有する液剤を施用すること、
を含む、上記方法。 In the building by the basic heat insulation method, it is a method of preventing termites from entering the wood part of the building,
(1) Rather than using a heat insulating material as a formwork at the time of foundation placement, when bonding a heat insulating material to a formed foundation, before bonding the heat insulating material to the foundation, polyethylene glycol, water, and 10 to 40 Preliminarily applying a liquid agent containing a boric acid-based compound in weight percent to at least one of the part to be bonded to the heat insulating material in the foundation or the surface to be bonded to the basic wall of the heat insulating material;
(2) As a heat insulating material, using a foamed resin heat insulating material containing a borate of 2500 ppm or more based on the weight of the foamed resin;
(3) If there is a side wall surface of the foundation not covered with the heat insulating material on the inner side of the building, and if there is an internally attached heat insulating material, polyethylene glycol, water on the exposed surface of the heat insulating material after being internally attached to the foundation Applying a solution containing 10 to 40% by weight of a boric acid compound,
(4) Filling the joint between the heat insulating materials after being bonded to the foundation with an airtight sealant containing an anti-anticide;
(5) Cover the gap between the pipe and cable outlet and the foundation provided through the foundation and the drain outlet provided during the construction period with mortar, and fill with an airtight sealant containing an anti-anticide And (6) Polyethylene glycol, water, and 10 to 40% by weight of boric acid compound are added to the surface on the inner side of the floor bundles, pipes, and cables leading to the ground and the building wood part. Applying the liquid containing,
Including the above method.
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