BUTRACO SEAMLOCK ROOFING – SUPERIOR ROOFING SOLUTION FOR FACTORIES AND INDUSTRIAL PROJECTS
PRODUCT INTRODUCTION
SeamLock roofing sheet is a premium profile roll-formed with seamless corrugation and a 360° double lock system, ensuring optimal drainage, absolute waterproofing, and anti-uplift performance – an ideal choice for factory and large-scale industrial roofing systems. Particularly, this roofing system withstands typhoon winds up to level 12 and rainfall up to 300mm/h.
The product is directly manufactured by BUTRACO VIET NAM according to customized lengths, fabricated and installed on-site, ensuring construction schedule compliance and cost optimization.

MAIN TECHNICAL SPECIFICATIONS
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Raw coil width: 597 – 600mm
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Effective width: 485mm and 500mm
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Wave height: 60mm
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Sheet length: As required
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Thickness: 0.35mm – 0.70mm
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Material: Galvanized steel, cold-rolled steel, pre-painted steel, aluminium-zinc coated steel
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Base steel strength: G300 – G340Mpa
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Colours: Diverse, upon request
SUPERIOR ADVANTAGES
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Excellent wind resistance – 360° double lock system, withstanding typhoon level 12
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Absolute waterproofing – vertical lock system with hidden clips, seamless drainage
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Anti-expansion – smart sliding clips absorbing thermal expansion and contraction
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Reinforced rigidity – three auxiliary ribs between main waves enhance sheet strength, reducing purlin spacing
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Easy installation, safe walking – no deformation during assembly
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High aesthetics – modern design with durable colour finish
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Good insulation and corrosion resistance – ideal for factories, warehouses, industrial buildings
COMPATIBLE ACCESSORIES
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Seamlock clips
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Specialized screws
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Lock hooks and anti-expansion accessories
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Gable trims, fascia, and gutters
TYPICAL APPLICATIONS
✔️ Large-scale factory and warehouse roofing
✔️ Roofing for civil buildings, shopping malls, stadiums
✔️ Projects requiring long-span roofing with minimal slope
✔️ Harsh climate regions with heavy rain and strong winds
REPRESENTATIVE PROJECTS
⚠️ USAGE NOTES
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Fasten sheets tightly during transportation
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Do not drag sheets across rough or sharp surfaces
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Installation should be carried out by professional teams to ensure technical efficiency
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Store in dry, ventilated areas if not used immediately
ABOUT BUTRACO VIET NAM
BUTRACO is a professional manufacturer and fabricator of roofing sheets, aluminium panels, louvers, gutters, and sheet metal products. With a 6,000m² factory located in Nguyen Khe Industrial Park – Dong Anh – Ha Noi, equipped with modern CNC machinery, we are committed to:
✅ Technically precise products – On-time delivery
✅ Custom fabrication according to drawings and special requirements
✅ On-site consultation support – Competitive pricing
✅ Professional warranty and customer care policy
CONTACT US NOW FOR QUOTATIONS
BUTRACO VIET NAM COMPANY LIMITED
🏢 Office: P312, N03 Building, Tran Quy Kien, Cau Giay, Ha Noi, Vietnam.
🏭 Factory: Nguyen Khe Industrial Park, Dong Anh, Ha Noi, Vietnam.
📱 Hotline: +84 979 549 666 or +84 986 188 468
🌐 Website: www.butraco.vn
📧 Email: contact@butraco.vn
BUTRACO – Premium, durable roofing solutions that stand the test of time