Can be constructed without removing the existing roof! Suitable for large-scale roof renovations in factories and similar facilities.
"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 the customer's business, such as factories, warehouses, and stores, while also avoiding the generation of industrial waste. By attaching a saddle developed in-house to a hook bolt, it enables renovations to be carried out without drilling screws into the existing slate, allowing the factory to operate safely during the construction work. [Features] ■ Can be implemented 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 Cabler Roof Installation Screws** - Pitch of rafters for 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 **Tensile Strength of Saddle (Through Rafter Fixing Fitting)** - Pitch of rafters for 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.
Company information
At Nakai Co., Ltd., we mainly 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 improve their workplace environment while also gaining economic benefits through energy savings.
