SIGMA SECTION /purlins are accurately roll formed from high strength steel to provide an efficient, light weight and economical roofing and cladding support system for structural steel buildings. SIGMA SECTION /purlins are quick to install and suitable for both insulated and noninsulated roofs and walls.
The thickness and height of the purlin selected depend on span length and loads.
|Thickness||1.5–3.0 mm Minimum length ___________ Maximum length __________|
|Material||Hot galvanized steel sheet|