A waterproof construction method that boasts excellent overall performance and reliability.
The "R-T Method" is a stainless steel waterproofing technique that was introduced from the Swedish company Rostfri a-Tak in 1980 and has since evolved uniquely in our company. Today, while maintaining its reliable water tightness, it has been adopted in many representative buildings in our country as an element that composes aesthetically rich roofs. By continuously welding sheets of stainless steel, which have excellent weather resistance, through seam welding, we can ensure reliable water tightness. If long-term weather resistance is required, the option of using titanium sheets is also available. 【Features】 ■ Complete water tightness through welding ■ Long-term maintenance-free ■ Achieves aesthetically rich roofs ■ Constrained method (our unique method) ■ Energy-saving through external insulation construction, etc. ■ Compatible with wooden substrates ■ Installation of solar panels and rooftop greening is possible with dedicated fittings *For more details, please download the PDF or feel free to contact us.
Inquire About This Product
basic information
【Materials Used】 ■ Ferritic Stainless Steel - U-20 (Equivalent to SUS447J1) - U-22 (SUS445J2) - U-24 (SUS445J1) - NSS445M2 (SUS445J1) - NSSC220M (SUS445J2) ■ Austenitic Stainless Steel - SUS304 - NSSC270 (Equivalent to SUS447J1) ■ Titanium - JIS H4600 Type 1 *For more details, please download the PDF or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
【Construction Examples】 ■Hiroshima Special Needs School Building ■Akemi Sky Dome ■Ota City General Gymnasium ■Okazaki City Library Plaza Libra ■Mihara City Arts and Culture Center Popolo ■Bainai Fureai Park Hiratsuka Arena ■Kyushu National Museum ■Kuji City Gymnasium *For more details, please download the PDF or feel free to contact us.
Company information
Our company has been providing total performance in roofing for 70 years, ensuring not only comfortable living conditions but also excellent durability and beauty, as well as ease of construction and maintenance systems. Moving forward, we will continue to leverage the unique know-how we have cultivated since our founding to create new roofs that are suitable for the 21st century. Please feel free to contact us with any requests. (Metal roofs, standing seam roofs, corrugated roofs, long-length roofs, high-strength standing seams, high-strength corrugated sheets, sheet waterproof roofs, roof decks, square wave siding, design siding, cover renovations, renewals)