High Tensile Galvanised Steel
TH® C-Purlin is produced from Hi-tensile galvanised steel. The technology used in cold roll forming process ensures stability and accuracy in its dimensions and lengths.
The purlins supplied are cut to length and pre-punched hole(s) to ease with roofing designs, cladding supports and light weight frame structures.

Category:

C-PURLINS: DIMENSIONS & PROPERTIES

RECOMMENDED HOLING, CLETS AND FASTENING DETAILS

Standard THI-C sections are supplied with optional holes punched to order. Punched C-section can be supplied with H14, H16, H18 or elongated holes, with recommended cleat size as stated in table below.

GALVANISED STEEL C-PURLIN

DIMENSIONS AND PROPERTIES

The C-Purlins are normally used as simple supports. Sections of sufficient length may also be used continuously over two or more spans to reduce deflection.

DETAIL OF STANDARD TIE ROD

SECTION PROPERTIES

HOLES DETAILS, CLEATS, FASTENING

The Purlin Quick Selection Table is derived i accordance to BS5950: 1987, ‘Code Of Practice for Design of Cold Formed Section” with a maximum roof pitch of 50 degrees and roofing sheet distributable load of 6.55kg.