Residential C Purlins Roof Design

The shape of cee purlins does not allow end lapping they are butted together.

Residential c purlins roof design.

Civil engineering design in architecture or structural engineering or building a purlin or purline is a horizontal structural member in a roof. Cee purlins are secondary steel framing members most commonly used as roof purlins wall girts and header jamb and sill for windows and doors on metal buildings. Steeline c purlins are made from quality galvaspan steel and are roll formed to length with holes punched to your specification. Steeline c purlins are available in different sizes and material strengths to match the design specification of your building.

Roof purlin are members used to directly support roof sheeting materials and could be made of timber or steel. Welded together they can be used as columns braces and ties. In timber construction purlins are nailed to the rafter or supporting trusses while in steel roof construction they are welded or bolted to the rafters or trusses by the means of cleats. How to design c purlins and sag rods design according to nscp 2015 c purlinsare horizontal type steel section that are used to support the load from the roof deck or the sheathing.

In the past the majority of roof structures were of wooden construction but over the past 15 to 20 years there has been a vast shift away from wood to metal mainly steel roof construction.