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  1. Home
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  4. Waterproofing, moisture-proofing and humidity control materials
  5. Waterproof sheet
  6. Why is waterproofing necessary?

Why is waterproofing necessary?

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last updated:May 29, 2025

Robusto
Robusto
  • Official site

Is waterproofing really necessary? A detailed explanation of how waterproofing works!

We would like to introduce the modified asphalt waterproof sheet "OS-sheets" handled by Robusto. Waterproofing, in essence, is a mechanism to prevent water from entering the structure of a building in order to protect it from rain leaks and deterioration. For example, in the case of concrete buildings, over time, due to the degradation and behavior of the building, cracks may develop in the concrete. If rainwater enters through these cracks, it can permeate, causing leaks and leading to the corrosion of the rebar within the concrete. Waterproofing protects buildings from water and helps them last longer. *For more details, please refer to the PDF materials or feel free to contact us.

    Waterproof sheetRenovation and repair methodsSpecial Construction Method
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Why is waterproofing necessary?

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  • Related Link - http://robusto.jp/

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【Benefits of Introducing OS-sheets】 ■ 10-year waterproof repair warranty and reduced repair costs ■ Shortened construction period and reduced number of workers due to easy installation ■ CO2 emissions are minimized from manufacturing to construction through material simplification *For more details, please refer to the PDF document or feel free to contact us.

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Modified asphalt waterproof sheet 'OS-sheets'

Modified asphalt waterproof sheet 'OS-sheets'

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Robusto

Robusto

Building materials, supplies and fixtures manufacturers

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Robusto Co., Ltd. is a company primarily engaged in the manufacturing and sales of waterproof materials and other building materials and tools. To create products that fit the future of Japan, we prioritize "labor-saving in construction," "improvement of productivity," and "reduction of environmental impact." To ensure quality unaffected by human resources or environmental factors, we strive to bring semi-finished products as close as possible to finished products, simplify materials and processes, and avoid large tools and equipment whenever possible. By incorporating these considerations into our products and methods, we aim to reduce processes, labor, and environmental impact at construction sites, continuously preparing for the future of Japan. We offer products such as the simple and easy-to-install 'OS-sheets.' We can propose solutions tailored to our customers' needs and budgets, including asphalt waterproofing and sheet waterproofing. Please feel free to contact us with your requests.

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