TL-frame substructures are made of aluminum, galvanized steel or stainless steel with individual system components such as primary and assembly fixings produced in hot dip galvanized or stainless steel (Figure 1).
TL systems consists of:
1) TL - support brackets
2) T or L vertical and horizontal profiles
Horizontal systems
The system which is used depends on the cladding type as well as the structural circumstances. Horizontal systems are very often used on beam-and-column constructions. The use of TL horizontal systems is possible with lightweight cladding elements, e.g. corrugated iron, trapezoidal sheet, etc. For heavier cladding types it is recommended to apply bracket reinforcement (Figure 3).
Vertical systems
Vertical systems are often used on brickwork or concrete masonry. With vertical systems the length of the profiles normally depends on the storey height. With TL system TL profiles (Figure 4) can be delivered in custom-length according to the order but the maximum length is limited to 4100 mm.