Can be constructed without removing the existing roof! Suitable for large-scale roof renovations in factories and similar buildings.
"ZeroD-Roof" is a new construction method developed independently by Nakai that can be implemented without removing existing roofs. It allows for the revitalization of facilities without interrupting your business, such as factories, warehouses, and stores, while also avoiding the generation of industrial waste. By attaching our self-developed saddle to the hook bolt, we can carry out renovation work without drilling screws into the existing slate, ensuring that the factory can operate safely during the process. [Features] ■ Construction can be carried out while the factory is in operation ■ Peace of mind from not generating industrial waste ■ Suitable for improving leak prevention and thermal insulation *For more details, please refer to the related links or feel free to contact us.
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【Strength Performance (Excerpt)】 <Pull-out Strength of Cab Roof Installation Screws> ■Rafter pitch of slate roof: 850mm ■Horizontal spacing pitch of screws: 390mm 0.85×0.39＝0.33m2 ■Number of fittings per m2: 1÷0.33＝3.01 pieces/m2 ■Pull-out strength of screws: 270kgf/piece 270×3.01＝812kgf <Pull-out Strength of Saddle (Through Rafter Fixing Fitting)> ■Rafter pitch of slate roof: 850mm ■Horizontal spacing pitch of screws: 390mm ■Number of fittings per m2: 1÷0.33＝3.01 pieces/m2 ■Pull-out strength of screws: 257kgf/piece 270×3.01＝773kgf *For more details, please refer to the related links or feel free to contact us.
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For more details, please refer to the related links or feel free to contact us.
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At Nakai Co., Ltd., we primarily engage in architectural sheet metal work (roofing, exterior walls, and gutter construction), manufacturing hardware, special decorative panels, design and construction (including argon welding), and renovations of roofs and walls (for residential homes, factories, stores, etc.). Focusing on our in-house developed "Zero Deal Roof" and heat insulation method "Reflectix," we provide technologies that enhance the environmental performance of buildings, allowing our customers to achieve both improvements in their workplace environment and economic benefits through energy savings.