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. Balconies in wooden buildings, 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 waterproofing 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 realized the "wooden balcony," which was considered taboo in architectural engineering, is also featured in the new architectural publication "Architectural Tiger's Den - Chronicles" by Nobumichi Oshima. Despite being maintenance-free, it has a 38-year track record with no instances of leaks. Since it does not use organic solvents like FRP waterproofing, it has been adopted by renowned architects and major housing manufacturers aiming for wellness in environmental architecture, and is evaluated as the highest quality balcony construction method. - Its waterproofing performance is incomparable to sheet waterproofing that requires maintenance. It can withstand direct hits from super typhoons associated with global warming. - It comes with a 10-year waterproof guarantee through a partnership with major insurance companies, plus a 30-minute fire resistance certification, creating a safe and comfortable balcony space. - It does not use any organic solvents that emit harmful substances, such as toluene and xylene. From the perspective of living environments, it is a top-level balcony construction method in the industry, minimizing negative health impacts and odor diffusion to neighbors. - It features a one-touch dry construction method that can be carried out in all weather conditions. Normal balconies can be constructed in just one day.
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, including wooden houses, stores, and apartments.
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Company information
We are a specialized company in metal roofing materials, exterior wall materials, and perforated folded plates, providing total production for the design, manufacturing, and construction of diverse architectural envelopes, from domestic general residences to large-scale overseas projects. We offer a lineup of advanced 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 the development of 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.