Our Roofing Profiles

Randek Roofing Sheets
Tile Profile

The tile roof profile is the latest addition to the Company roofing range which is neat and aesthetic giving a streamlined and attractive perspective to any building. The tile profile is ideal for gable roofs of dwelling houses, hotels and any commercial building requiring an elegant finish.

Randek 770 Profile

The tile roof profile is the latest addition to the Company roofing range which is neat and aesthetic giving a streamlined and attractive perspective to any building. The tile profile is ideal for gable roofs of dwelling houses, hotels and any commercial building requiring an elegant finish.

Curved Profile

Our range of curved sheets consist of four curvings. These sheets are recommended for walk ways, weather sheds, car park, bus stop and a variety of commercial, industrial and domestic applications. The curve sheets also contribute to cost saving due to lesser supporting frame work for fascias, roofs.

Categories of Randek Roofing Sheets

Randek 770 Roofing

This profile with dome shaped ridges double fluted on sides of ridge and a single flute on valley, enhances the strength of the roofing and is also applicable for purposes of cladding.

Profile diagram Specifications summary `RANDEK’ 770 (in mm)
Fasteners / screws complementing the roofing / cladding range

This is the heading

The fasteners/roofing screws selected for roofing and cladding material should have similar life expectancy to that of the roofing /cladding.

We supply a special galvanized delta coated screw with rubber washer for both steel and timber frames.

Recommended screws spec - 55 mm delta coated screw.

Product Specifications
Feeding width:
914 mm / 940mm
Effective cover width (EW):
762 mm
Rib height:
24 mm (Nominal sheet depth)
Tensile strength:
G550
Coating class:
AZ 150
Recommended total coated thickness:
0.47 mm and 0.40 mm
Colour range:
Non- colour and Colourbonded steel
Maximum transportable length:
20ft – 40ft depending on length of transport trailer
Base metal thickness (mm)
Total coated thickness (mm)
Mass/area kg/m²
Effective sheet cover width (mm)
Nominal sheet depth (mm)
Minimum recommended roof slope
Maximum recommended supports spacing for normal conditions
0.35
0.40
3.791
762
24
Roofs : Internal span - 1700 mm End span - 1000 mm
0.42
0.47
4.455
762
24
Walls : Internal span – 2400 mm End span - 1200 mm
Base metal thickness (mm) Total coated thickness (mm) Mass/area kg/m² Effective sheet cover width (mm) Nominal sheet depth (mm) Minimum recommended roof slope Maximum recommended supports spacing for normal conditions
0.35 0.40 3.791 762 24 Roofs :
Internal span – 1700 mm
End span – 1000 mm
0.42 0.47 4.455 762 24 Walls :
Internal span – 2400 mm
End span – 1200 mm
Randek U250 Roofing

The U250 profile is a simple square, roll formed with a single flute on the valley of the roofing sheet, which can also be used for decking.

Profile diagram Specifications summary `RANDEK’ U250 (in mm)
Fasteners / screws complementing the roofing / cladding range

Recommended screw spec – 65 mm delta coated screw

Product Specifications
Feeding width:
914 mm / 940mm
Effective cover width (EW):
762 mm
Rib height:
24 mm (Nominal sheet depth)
Tensile strength:
G550
Coating class:
AZ 150
Recommended total coated thickness:
0.47 mm and 0.40 mm
Colour range:
Non- colour and Colourbonded steel
Maximum transportable length:
20ft – 40ft depending on length of transport trailer
Base metal thickness (mm) Total coated thickness (mm) Mass/area kg/m² Effective sheet cover width (mm) Nominal sheet depth (mm) Minimum recommended roof slope Maximum recommended supports spacing for normal conditions
0.35 0.40 4.316 665 39 Roofs :
Internal span – 2000 mm
End span – 1200 mm
0.42 0.47 5.071 Walls :
Internal span – 2800 mm
End span – 1700 mm
Randek Tile Roofing

The tile roof profile is the latest addition to the Company’s roofing range which is neat and aesthetic, giving a streamlined and attractive perspective to any building. The tile profile is ideal for gable roofs of dwelling houses, hotels and any commercial building requiring an elegant finish.

The tile profile is available in six tile sizes in accordance with the tile length – varying from 8 to 16 inches. The roof support spacing will vary, depending on the tile size.

Product Specifications
Feeding width:
914 mm
Effective cover width (EW):
730 mm
Rib height:
40 mm
Tensile strength:
G550 (Hi-ten) G350 (soft)
Coating class:
AZ 150
Recommended total coated thickness:
0.47mm, 0.40mm and 0.35mm
Standard tile length (6 sizes):
8”, 9 “, 10” ,12 “,14 “ and 16” (inches). Orders for customized tile lengths are also accepted
Colour range:
Colourbonded steel
Profile diagram Specifications summary `RANDEK’ Tile roofing (in mm)
Fasteners / screws complementing the roofing / cladding range

Recommended fasteners:

Steel frames – 65mm delta coated screws

Timber frames – 68mm delta coated screws

Tile length Base metal thickness Total coated thickness (TCT) Mass kg/m² Nominal sheet depth Recommended roof slope Recommended support spacing Roof spans End span
Inches mm mm kg/m² mm ° mm End span mm Internal span mm
8" 0.42 0.47 5.197 40 15° 204 mm – Minimum 610 204
8" 0.35 0.40 4.423 40 15° 610 mm – Maximum 610 204
8" 0.30 0.35 3.87 40 15° 204 mm – Minimum 610 204
8" 0.30 0.35 3.87 40 15° 610 mm – Minimum 610 204
9" 0.42 0.47 5.084 40 15° 229 mm – Minimum 686 229
9" 0.35 0.40 4.323 40 15° 686 mm – Maximum 686 229
9" 0.30 0.35 3.784 40 15° 229 mm – Minimum 457 229
10" 0.42 0.47 5.084 40 15° 254 mm – Minimum 762 254
10" 0.35 0.40 4.323 40 15° 762 mm – Maximum 762 254
10" 0.30 0.35 3.784 40 15° 254 mm – Minimum 508 254
11" 0.42 0.47 5.084 40 15° 254 mm – Minimum 837 279
11" 0.35 0.40 4.323 40 15° 762 mm – Maximum 837 279
11" 0.30 0.35 3.784 40 15° 254 mm – Minimum 558 279
12" 0.42 0.47 4.893 40 15° 254 mm – Minimum 610 305
12" 0.35 0.40 4.164 40 15° 508 mm – Maximum 610 305
12" 0.30 0.35 3.65 40 15° 254 mm – Minimum 610 305
Randek Crimp Curve Roofing

Our range of curve sheets consist of seven curves.

Curve sheets are recommended for walkways, weather sheds, car parks, bus stops and a variety of commercial, industrial and domestic building applications. The curve sheets also contribute to cost saving due, to lesser supporting frame work for fascias and roofs.

Product Specifications
Feeding width:
914 mm
Effective cover width (EW):
730 mm
Rib height:
24 mm (Nominal sheet depth)
Tensile strength:
G550 (High- Ten) and G350 (Soft)
Coating class:
AZ 150
Total coated thickness:
0.35mm, 0.40mm and 0.47mm in Hi-tensile (G550) and Soft material (G350)
Standard tile length (6 sizes):
8”, 9 “, 10” ,12 “,14 “ and 16” (inches). Orders for customized tile lengths are also accepted
Colour range:
Colourbonded steel
Randek U762 Roofing
Fasteners / screws complementing the roofing / cladding range

The fasteners/roofing screws selected for roofing and cladding material should have similar life expectancy to that of the roofing /cladding.

We supply a special galvanized delta coated screw with rubber washer for both steel and timber frames.

Product Specifications
Feeding width:
940mm
Effective cover width (EW):
762 mm
Rib height:
29 mm
Tensile strength:
G550
Coating class:
AZ 150
Recommended total coated thickness:
0.47 mm and 0.40 mm
Colour range:
Non- colour and Colourbonded steel
Maximum transportable length:
20ft – 40ft depending on length of transport trailer
Profile diagram Specifications summary `RANDEK’ U762 Roofing (in mm)
Randek Strip Form Roofing
Fasteners / screws complementing the roofing / cladding range

The fasteners/roofing screws selected for roofing and cladding material should have similar life expectancy to that of the roofing /cladding.

We supply a special galvanized delta coated screw with rubber washer for both steel and timber frames.

Product Specifications
Feeding width:
305mm
Effective cover width (EW):
180mm
Tensile strength:
G550
Coating class:
AZ 150
Recommended total coated thickness:
0.47 mm and 0.40 mm
Colour range:
Non- colour and Colourbonded steel
Maximum transportable length:
10ft
Profile diagram Specifications summary `RANDEK’ U762 Roofing (in mm)
Translucent Sheet
Profile diagram Specifications summary `RANDEK’ 770 (in mm)
Fasteners / screws complementing the roofing / cladding range

This is the heading

The fasteners/roofing screws selected for roofing and cladding material should have similar life expectancy to that of the roofing /cladding.

We supply a special galvanized delta coated screw with rubber washer for both steel and timber frames.

Recommended screws spec - 55 mm delta coated screw.

Product Specifications
Feeding width:
914 mm / 940mm
Effective cover width (EW):
762 mm
Rib height:
24 mm (Nominal sheet depth)
Tensile strength:
G550
Coating class:
AZ 150
Recommended total coated thickness:
0.47 mm and 0.40 mm
Colour range:
Non- colour and Colourbonded steel
Maximum transportable length:
20ft – 40ft depending on length of transport trailer
Base metal thickness (mm) Total coated thickness (mm) Mass/area kg/m² Effective cover width (mm) Nominal sheet depth (mm) Minimum recommended roof slope Maximum recommended supports spacing for normal conditions
0.35 0.40 3.791 762 24 Roofs:
Internal span – 1700 mm
End span – 1000 mm
0.42 0.47 4.455 762 24 Walls:
Internal span – 2400 mm
End span – 1200 mm