— Our Roofing Profiles —
“RANDEK” Purlin has two types as;
“RANDEK” steel Purlins are manufactures to provide light weight and economical roof and wall cladding support systems for framed structures.
“RANDEK” Purlin and girts are pre- punched ready for site assembly. Together with a full range of roofing and wall cladding, designers are able to design cost effective buildings.
RANDEK purlin sections are continuously roll-formed from both zinc coated high-tensile steel and unalloyed low carbon black steel strips, punched in- line and cutto length. Accessories are also, zinc-coated and either made to custom lengthsor supplied as a standard component. The optimized dimensions of purlin,together with the widest range of sections and thicknesses, makes RANDEK purlin the top performer in lightweight cold-formed steel sections.
With the quality coating. RANDEK Purlin possesses superior corrosion protection quality.
The pre-coated material eliminates the painting procedure. Welding is not required at the site allowing for a cleaner construction site.
Manufactured using high tensile steel of grade G450-550Mpa allowing it to have a strong but lighter design structure. Moreover, it provides an excellent strength-to-weight ratio enabling it to support wider purlin spans
With its lightweight feature, it allows for a lighter design structure and reduces the manufacturing cost, eliminating the wastage of material from the manufactured to length feature. Easy installation reduces labor cost
RANDEK C Purlin could be used in a single span and unlapped continuous span in construction with its modern design, it can be applied as eave purlins or where compact sections are required for detailing
The following purlin sizes provide an easy reference.
| Selection Identification | Selection Dimensions | Mass (kg/m) | ||||
|---|---|---|---|---|---|---|
| A (mm) | B (mm) | C (mm) | D (mm) | t (mm) | ||
| 100-16 | 100 | 50 | 50 | 14 | 1.60 | 2.78 |
| 100-20 | 100 | 50 | 50 | 16 | 2.00 | 3.45 |
| 150-16 | 150 | 65 | 65 | 15 | 1.60 | 3.84 |
| 150-20 | 150 | 65 | 65 | 15 | 2.00 | 4.77 |
| 150-25 | 150 | 65 | 65 | 20 | 2.50 | 5.93 |
| 200-16 | 200 | 75 | 75 | 20 | 1.60 | 4.82 |
| 200-20 | 200 | 75 | 75 | 20 | 2.00 | 6.00 |
| 200-25 | 200 | 75 | 75 | 20 | 2.50 | 7.46 |
RANDEK Z Purlin has one bruad and one narrow flange, which are designed to overlap perfectly. It could be used over single spans, un lapped and lapped continuous spans in construction. Lapped continuous spans result in a remarkable
capacity increase in the system.
The following purlin sizes provide an easy reference.
| Selection Identification | Selection Dimensions | Mass (kg/m) | ||||
|---|---|---|---|---|---|---|
| A (mm) | B (mm) | C (mm) | D (mm) | t (mm) | ||
| 100-16 | 102 | 53 | 49 | 14 | 1.60 | 2.78 |
| 100-20 | 102 | 53 | 48 | 14 | 2.00 | 3.45 |
| 150-16 | 152 | 65 | 61 | 16 | 1.60 | 3.84 |
| 150-20 | 152 | 65 | 61 | 16 | 2.00 | 4.77 |
| 150-25 | 152 | 66 | 60 | 16 | 2.50 | 5.93 |
| 200-16 | 203 | 79 | 74 | 20 | 1.60 | 4.82 |
| 200-20 | 203 | 79 | 74 | 20 | 2.00 | 6.00 |
| 200-25 | 203 | 79 | 73 | 20 | 2.50 | 7.46 |
