JPH0149859B2 - - Google Patents

Description

[Detailed description of the invention]

This invention relates to an underfloor paving method for obtaining moisture-proofing and termite-proofing effects under building floors. Generally, when the humidity under the floor of a building becomes high, various problems occur. First of all, if the wood under the floor gets wet, due to the nature of the wood, it will deteriorate quickly and rot, which can even cause the foundation to collapse. When the humidity under the floor and floorboards increases, there is a high possibility that the fungus, which is a basidiomycete fungus belonging to the family Shiwatake family and is widely distributed throughout the world, will grow all over the floor. This fungus is also called a house fungus because it likes moisture and grows all over the lower floors of houses, especially on the underside of the floorboards, rotting wood and eroding concrete. It should be avoided. Additionally, if the wood beneath the floor or the subfloor is damp, there is a risk of termite damage. Termites have a habit of nesting approximately 30 cm below the soil surface, building ant trails in the soil, causing poor ventilation and
Prefers warm, humid, dark places, and damages wood in damp conditions. In houses, the areas under the floors, especially bathrooms, kitchens, washrooms, toilets, leaky areas, and under the eaves where there is rain are ideal for termites. becomes the food of The damage caused by termites is so severe that if a house is left unnoticed for some time, the foundation of the house is destroyed and it is often impossible to repair the house. Conventionally, as a moisture-proofing measure under the floor of a building, a polyethylene sheet was laid from the ground level under the floor to the pile stones and the foundation, and then sand was spread evenly to a thickness of about 5 cm on top of the sheet, or concrete was poured on top of the subfloor. method is being carried out. Although the method of using polyethylene sheets described above has a moisture-proofing effect in the underfloor space, water droplets aggregate in the sheet overlapping areas, pile stones, and near the wooden base above the foundation, which can lead to the formation of the above-mentioned phlegm mushrooms. On the other hand, although concrete with a dirt floor has a moisture-proofing effect compared to soil, condensation is likely to occur on the concrete surface. On the other hand, in order to prevent termites under the floor, the general practice is to infiltrate the area around the pile stones and foundations or the entire surface of the subfloor with a pest control agent, or perform soil treatment such as mixing it with the soil. Wood treatments such as dipping, painting, spraying and perforation are used. However, with this method, it is difficult to obtain a moisture-proofing effect under the floor. This invention was made in view of the above circumstances,
The purpose is to provide a subfloor paving method that improves the moisture-proofing effect of the subfloor and strengthens the prevention of termite damage.A sheet is laid on the subfloor ground surface, and a termite-proof bituminous mixture is paved on top of it. It was designed to do so. This invention will be explained in detail below. In this invention, after leveling the subfloor of a building, a sheet is spread over the entire area under the floor, and a termite-proofing bituminous mixture is applied on top of the sheet to a thickness of 2.
This is an underfloor paving method characterized by paving approximately 3cm thick. Examples of the sheet include plastic sheets such as polyethylene, polypropylene, and vinyl, mesh-like sheets, paper, and cloth. Next, examples will be shown to specifically explain the present invention. Example: Pour termite-proof asphalt mastic into a 20cm wide and 15cm deep excavated soil around the piles and foundations under the floor of a general house, then spread a 0.3mm thick polyethylene sheet over the entire surface of the subfloor. From above, apply the following termite-proof room-temperature mixture to a thickness of 2
When the paving was done in cm, there was no termite damage for a long period of time (5 years). In addition, the floor surface was well dry and no growth of Namidata mushrooms was observed. "Room-temperature mixture for termite prevention" Mixed aggregate shown in the table below is heated to 110℃, and cutback asphalt heated to 70℃ is added to this mixed aggregate.
Add 5.7% MC800 and mix, then patent No. 598311
A room-temperature mixture for termite prevention that can be stored for a long time and manufactured by spraying 0.6% of the light component oil used in No. 1 with 2% chlordane mixed into the above mixture.

[Table] As can be seen from the above results, the underfloor paving method according to the present invention enhances the moisture-proofing and termite-proofing effects of the underfloor of buildings, prevents damage to buildings caused by moisture, improves livability, and is effective in controlling termite damage. It has the following.

Claims (1)

[Claims] 1. A moisture-proof and termite-proof underfloor paving method characterized by laying sheets such as plastic sheets, mesh sheets, paper, and cloth on the subfloor surface of a building, and paving a termite-proof bituminous mixture on top of the sheets.