Lock Seam
Lock Seam Roofing System
The Lock Seam Roofing System is a high-quality concealed-fastener metal roofing solution, widely used for industrial, commercial, and architectural buildings. It is specially designed to provide excellent weather tightness, durability, and a clean modern appearance.
What is a Lock Seam Roofing System?
A lock seam roofing system consists of long metal sheets (panels) that are joined together by mechanically locking or seaming the panel edges. The fasteners are completely hidden beneath the seams, which protects them from weather exposure and corrosion.
Key Features
Concealed Fastening System
No visible screws or bolts on the roof surface, ensuring better waterproofing and aesthetics.
High Weather Resistance
The interlocked seams prevent water penetration, making it ideal for heavy rain and wind-prone areas.
Thermal Movement Friendly
Panels can expand and contract freely due to temperature changes without causing leaks or damage.
Long Continuous Panels
Panels can be roll-formed on site to reduce overlaps and joints, increasing strength and leak protection.
Modern & Clean Loo
Smooth lines and uniform seams give the building a premium architectural finish.
Materials Used
- Galvanized Steel (GI)
- Pre-Painted Galvanized Iron (PPGI)
- Aluminum
- Zinc-Aluminum (Al-Zn)
- Common Applications
- Factories & Warehouses
- Commercial Buildings
- Airports & Stations
- Showrooms & Shopping Complexes
- Residential & Architectural Projects
- Advantages
- Excellent waterproof performance
- Low maintenance cost
- Long service life
- Strong wind uplift resistance
- Suitable for low-slope roofs