The only wooden balcony construction method that requires no maintenance.
The Promna Roof Excel, chosen by construction professionals, provides maintenance-free roof balconies for wooden structures. Wooden balconies, which cannot avoid deformation and swaying, generally require maintenance because the waterproof layer can break due to substrate deformation and external forces. However, the Promna Roof metal waterproofing method incorporates a multi-layer water-stopping device with excellent toughness (ductility), achieving zero leaks in hundreds of thousands of installations. It has gained immense trust from construction experts. The safe and comfortable wooden balcony space, free from concerns about waterproof layer breakage, sick house syndrome, and environmental pollution, is created by Promna Roof.
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basic information
Promenade Roof Excel, a special metal waterproofing method that has realized the "wooden building roof balcony," which was considered taboo in architectural engineering, is also featured in the new construction company "Architectural Tiger's Den - Chronicles (by Nobumichi Oshima)." Despite being maintenance-free, it has a 38-year track record with no instances of leaks. Because it does not use organic solvents like FRP waterproofing, it has been adopted by renowned architects and major housing manufacturers aiming for wellness-oriented environmental architecture, and is evaluated as the highest quality roof balcony method. ■ Waterproof performance that cannot be compared to sheet waterproofing that requires maintenance. It can withstand the direct impact of super typhoons associated with global warming. ■ A 10-year waterproof guarantee through partnership with major insurance companies + 30-minute fire resistance certified product. It creates a safe and comfortable balcony space. ■ It does not use any organic solvents that emit harmful components, such as toluene and xylene. From the perspective of living environment, it is a top-level roof balcony method in the industry, considering the negative health impacts and odor diffusion to neighbors. ■ A one-touch dry construction method that can be carried out in all weather conditions. It can be completed in one day for a standard balcony.
Price information
The price varies depending on the quantity, so please feel free to contact us.
Delivery Time
P4
Applications/Examples of results
Balconies and verandas of all types of buildings, such as wooden houses, stores, and apartments.
Company information
We are a specialized company in metal roofing materials, exterior wall materials, and perforated folded plates, providing total production for a diverse range of architectural envelopes, from general residential buildings in Japan to large-scale projects overseas. We offer an advanced lineup of roofing methods and materials, including green roofs, green walls, solar power generation systems, external insulation, and roof balconies. Our products have been adopted in architectural works by renowned architects such as Tadao Ando, Toyo Ito, Kengo Kuma, Ryuji Nakamura, Kisho Kurokawa, Terunobu Fujimori, Shuhei Endo, Hideki Yoshimatsu, Yoshihiko Iida, and Shigeru Ban. We excel in three-dimensional analysis to minimize costs and in developing innovative construction methods that challenge conventional wisdom, proposing unique solutions that satisfy the economic, aesthetic, durability, and environmental performance required for architectural envelopes. Please feel free to consult with us.
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