SHA Range 06 · C Channel
Sha C Channel: C and Z Purlins, Cleats and Fixings
Every roof sheet is only as good as the frame beneath it. Sha C Channel purlins keep your roof straight, strong and square, on homes, warehouses and factories alike.
The Frame Beneath Your Roof
From Houses to Warehouses
- Roof framing for homes and extensions
- Warehouse and factory roofs
- Wall framing for cladding
- Car porches and canopies
C or Z? Getting It Right
C purlins or Z purlins: what is the difference?
C purlins are common for simple, single spans and are easy to fix. Z purlins can be lapped over supports, which helps on longer, continuous runs such as large warehouse roofs. Your engineer or drawings decide which is right.
How far apart should purlins be?
Spacing depends on the roof sheet, its thickness, the wind exposure and the purlin size. Follow your engineer's drawings or the sheet manufacturer's guidance; we can check your layout against the materials you choose.
Why are sag rods needed?
Sag rods stop long purlins twisting or sagging between rafters, keeping the roof line straight and the sheets properly supported.
Galvanised or painted purlins?
Galvanised or zinc aluminium coated purlins resist rust far better in Sri Lanka's humid and coastal air, especially where the frame is open to the weather.
Structural sizes must follow your engineer's design. We can price from your drawings or materials list.
Working With Your Own Contractor?
Working with your own contractor? Send us the drawings and we will prepare a full purlin, cleat and fixing list.
C Channel Questions
Can you price directly from my drawings?
Yes. Upload your structural drawings or materials list and we will quote every section, cleat and fixing.
Do you supply purlins and roof sheets together?
Yes. Sha C Channel and Sha Roofing can be quoted and delivered together so the frame and sheets match.
Request a Purlin Quote
Send your drawings or a list of sections, thicknesses and lengths, and we will come back to you with availability and a written quotation.