Lipped Channel Sections & Purlins
Clotan Steel, the leading Lip Channel & Purlin provider to most destinations on the African continent
Clotan Steel are leading manufacturers and suppliers of lipped channels & purlins which offers a cost effective building solution for steel building products, supplying a wide range of steel products to companies and individuals in the construction industry. Clotan Steel manufactures a range of cold formed lipped channels and angles, available in various lengths, sizes and dimensions.
We offer affordable lipped channel prices and we assist clients to most destinations on the Africa continent.
Clotan Steel invested in state-of-the-art slitting and rollforming facilities in order to manufacture a full range of cold formed lipped channel and lipped angle. By investing in modern equipment Clotan Steel is able to provide the following benefits to the construction industry:
- Quick setup facilities on our equipment facilitate short lead times and a flexible service;
- Orders can be precision cut to length at high speed in order to eliminate length variances;
- Cutting the material to length before the profile is formed eliminates unwanted burs on the ends of the sections;
- An unique “camber corrector” guarantees tight dimensional tolerances, thus eliminating twist, camber and straightness problems.
- Can be supplied in various finished like Z275 Pre-Galvanized, Hot Dip Galvanized, Magnesium Zinc or plain black steel.
- In-line punching can be done to customers specifications, subject to certain dimensional limitations
All cold formed sections are manufactured to customers’ specifications from prime quality hot rolled steel that complies with the requirements of SANS 10162:
SANS 10162: (PART ONE) REGULATES:
Cold-formed sections made of commercial quality steel, which does not have a guaranteed minimum yield stress. On part one of the above standard the minimum yield stress is 200 mPa and tensile strength of 365 mPa can be used for commercial quality steel. Cold-formed sections with a specified yield strength can be supplied on request according to SANS 1062:
SANS 10162: (PART TWO) GOVERNS THAT:
Cold formed sections conform to the following thickness tolerances
| 2.0 mm | ± 0.18 mm |
|---|---|
| 2.5 mm | ± 0.18 mm |
| 3.0 mm | ± 0.20 mm |
Download Lipped Channel and Purlins product brochure
Additional Services
Purlins can be supplied in the following finishes: Z275 Pre galvanized, hot dipped galvanizing and magnesium zinc. Services such as painting with Zinc Chromate, Red Oxide or customers’ own paint specifications are available. Clotan Steel can also punch all lipped channel and lipped angles to customers’ specifications subject to certain dimensional limitations.
This design table is a guideline only, it is important to get engineer approvals on all your designs. Clotan Steel cannot be held responsible if you use these values wrongly or without engineer approvals.
Roof pitch
When using IBR, the recommended minimum pitch is 7.5° for roof slopes in excess of 30m and 5° for slopes less than 30m. When IBR roof sheets are end-lapped the roof pitch should be considered. The minimum end laps for roof pitches in excess of 15° is 150 mm and for other roofs a minimum of 250 mm is recommended. End laps for side sheeting should be at least 100 mm. It is recommended that end and side laps on low pitch roofs be sealed to ensure water tightness.
Installation procedure
The required number of IBR sheets can be calculated as follows:
- Number of sheets = Length of building + gable end overhangs - 70 mm
- 0.686 m (Cover width of sheet)
Roof sheets must be laid with the narrow flute of one corrugation side lap uppermost and should be fixed through the crests of alternate flutes to purlins using 65 mm Top Speed or Tex screws into steel purlins and 90 mm Tex or Top speed screws in the case of timber roofs. All fasteners should incorporate 26 mm dia bonded washers.
For vertical wall cladding (side cladding) it is recommended that the broad fluted be fixed externally with the main and side lap fasteners in the web of the flutes. Side cladding can be fixed using 25 mm Tex or Top Speed screws. All fasteners should incorporate 26 mm dia bonded washers.
In order to qualify for a guarantee on Zincalume® and Colorbond® sheets the following fasteners supplied by Buildex Industries should be used:
Metaltex Climaseal 3 for steel purlins and Timbertex Zacs 4 for timber purlins. The use of these fasteners will dramatically increase the lifespan of the roof sheeting as corrosion caused by fasteners is avoided.
IBR Roof Sheeting Supplier
Clotan Steel are trusted IBR Roof Sheeting suppliers in South Africa, supplying construction companies and individuals in South Africa and across the continent with quality steel building products. You can expect a professional service, affordable IBR Roof Sheeting prices, and a range of IBR Roof Sheeting in different sizes, dimensions and specifications. Trust the professional and experienced team at Clotan Steel to help you get the best IBR Roof Sheeting for your construction project needs. Speak to a professional consultant today for assistance, and to order the steel roof sheeting you require.
