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Construction method Product List

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Naruraito Injection Method: Waterproof Layer Regeneration Method / Penetrating Injection Method

We do not use any substances prioritized by the Healthy Housing Research Association or substances for which the Ministry of Health, Labour and Welfare has established guideline values!

The "waterproof layer regeneration method" does not simply involve applying sheets or waterproof membranes to leaking areas or filling cracks with resin. It involves injecting a material called Narulight into the gaps between the overlay concrete and the waterproof layer, as well as between the slab and the waterproof layer, thereby blocking the pathways for water ingress and the leaking areas. Additionally, the "penetrating injection method" involves drilling through the walls or floor concrete of a basement and injecting Narulight from the exterior of the building. Narulight utilizes external soil pressure and water pressure to form a waterproof membrane on the outer surface. At the same time, Narulight fills the leaking cracks due to water pressure, completely sealing them. 【Features (Waterproof Layer Regeneration Method)】 ■ No industrial waste produced ■ Complete waterproofing through partial repairs ■ Work is completed in a very short period ■ Minimal noise during work ■ Bonds with asphalt and urethane waterproofing ■ Low cost *For more details, please refer to the PDF document or feel free to contact us.

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Modified asphalt sheet cold application "Narcissheet coating waterproofing"

Environmentally friendly! Aimed at improving work efficiency, using "Narcissheet N" instead of non-woven fabric for the floor!

"Naru Sheet Coating Waterproofing" is a modified asphalt sheet cold application method that does not use any organic solvents or open flames. In order to improve the workability of the Naru Falt coating sheet method, "Naru Sheet N" is used instead of non-woven fabric for the floor. It complies with JIS A 6013 modified asphalt roofing. 【Features】 ■ Environmentally friendly ■ Safe with no toxicity or flammability ■ Adhesion to damp substrates ■ High waterproofing capability due to asphalt ■ Flexibility to accommodate substrate expansion and contraction *For more details, please refer to the PDF document or feel free to contact us.

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Coating Sheet Method "Nalfalt WP"

Waterproofing can be applied even on damp surfaces! Just apply it in its concentrated form, and it will form a waterproof membrane through natural drying.

"Nalfalt WP" is a water-based emulsion type waterproofing agent that modifies asphalt with rubber. Simply apply it in its concentrated form, and it will form a waterproof membrane through natural drying. Once the waterproof membrane is formed, it will not dissolve again. It adheres strongly to the substrate and forms a tough and durable elastic membrane, making it a product with excellent workability and safety. 【Features】 ■ Non-toxic and non-flammable, safe to use ■ One-component water-based emulsion ■ High waterproofing and strong adhesion ■ Can be applied even on damp substrates ■ Excellent flexibility *For more details, please refer to the PDF document or feel free to contact us.

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Coating waterproof exposed method "Nalfalt WP-S"

For roller, brush, and spray application! Can be used as anti-rust paint without the use of fire or organic solvents.

We would like to introduce the coating waterproofing exposed method "Nalfalt WP-S." It does not use any substances prioritized by the Healthy Housing Research Association, such as formaldehyde, toluene, or xylene, nor any substances established by the Ministry of Health, Labour and Welfare guidelines. As it is a one-component water-based emulsion, there is no need to mix two components, eliminating issues caused by poor mixing. Furthermore, it can be easily applied using a roller, brush, or spraying machine. 【Features】 ■ Safe and pollution-free work as it does not use any flammable materials or organic solvents ■ No need to mix two components due to its one-component water-based emulsion ■ Exhibits strong adhesion to steel plates ■ Can be used as a substitute for anti-corrosion paint ■ Blocks solar radiation affecting the roof, mitigating temperature rise inside the building (in heat-insulating specifications) *For more details, please refer to the PDF materials or feel free to contact us.

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Waterproof layer renovation method for achieving the long lifespan of facilities! Narlight injection method.

Revitalize the waterproofing layer using asphalt waterproofing! Introducing a waterproofing layer renovation method that achieves the longevity of facilities.

The waterproof layer regeneration method "Narlight Injection Method" is a technique that creates a waterproof membrane between the pressure layer and the slab concrete without removing the pressure layer. By injecting a special resin into the gaps between the pressure concrete and the waterproof layer, as well as between the slab and the waterproof layer, it blocks the pathways for water intrusion and cracks in the structure, thereby regenerating the deteriorated waterproof layer to a sound condition. The asphalt waterproof layer adopted during construction remains in good condition even after 30 years, and there is still plenty of potential for continued use in the future. Additionally, under the protective specifications of asphalt waterproofing, the injected special resin is shielded from UV rays and heat by the protective layer, allowing for long-term durability. The Narlight Injection Method addresses the above challenges, enabling a reduction in the frequency of lifetime renovations, a decrease in CO2 emissions, and a reduction in running costs. *For more details, please download the materials or contact us.

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Modified asphalt sheet cold composite waterproofing Narusheet N composite method

No organic solvents or open flames used at all! Complies with JIS A 6013 modified asphalt roofing!

We would like to introduce the "Narcise N Composite Method." The "Narcise N" used in this method complies with the modified asphalt roofing standard JIS A 6013. "Narcifalt WP" is a water-based single-component product that does not use organic solvents, and since the film cures by drying, it does not contain any substances of health concern. In the case of renovation work for rooftop waterproofing where the existing waterproofing has an exposed asphalt finish, the compatibility of similar materials, along with the reliability of asphalt waterproofing systems, is highly regarded. 【Features】 ■ Combines toughness and water tightness ■ Covers the weaknesses of modified asphalt adhesive sheets ■ Simplifies the structure of upstands ■ Can be adapted to the Ministry of Land, Infrastructure, Transport and Tourism specifications ■ Complies with the JIS A 6013 modified asphalt roofing standard *For more details, please refer to the PDF materials or feel free to contact us.

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