Double lock standing seam system is generally applied in spherical, curved, and other special shaped roofing systems, with relatively smaller radius, e.g., stadiums, convention centers, business centers, high-grade villas, where various design concepts of the architects can be easily realized. The system allows for aesthetics, material, structure, wind-load, thermal movement, thermal insulation, water-tightness, etc., providing a system with complete and integral performance.

Features of Double Locked Standing Seam System
•Realize architect’s design intent of spherical, curved, and other special shaped roofing systems;
•Combination of invisible fixed and sliding clips, accommodating movement resulting from thermal movement, thus avoiding cracking or deformation;
•Mechanical seaming, without any application of chemical sealant, avoiding aging and environmental pollution;
•Meet the requirement of thermal insulation and acoustic performance;
•Flexible solutions for ridge, gable, skylight, gutter, eave, etc. by 360 degree locked seam, with perfect water-tight performance. 

Material Options
Materials with excellent anti-corrosion performance and long service life, e.g., pre-painted aluminium, titanium, copper, etc., are recommended for the system to achieve a service life of more than 50 years.