Supa-Corr Roofing Sheet 0.30mm x 4.8m Supa-Red
Product Description
Popular and timeless classic.
With superior high-gloss premium coating for lasting colour, Supa-CORR is a corrugated durable, cost-effective, pre-painted roofing sheet. The paint system used on it provides optimal performance and is excellent value for money.
Inspired by the vibrant colours of Africa, Supa-CORR is produced by a unique process whereby rolled steel is continuously hot dipped into a patented alloy of 55% aluminium, 43.5% zinc and 1.5% silicon.
This patented coating protects the steel in two ways:
• The aluminium component of the coating provides a tough physical barrier between the external atmospheric conditions and the inner core of steel.
• The zinc in the coating sacrifices itself to protect the steel at cut edges.
TECHNICAL SPECIFICATIONS
Mechanical properties
| G550 | G275 | |
| Hardness | ≥83 HB | ≥63 HB |
| Standards | Mechanical Grades | |
| SANS 9264 & SANS 1845 | G550 | |
| SANS 9364 & SANS 1845 | G275 |
Dimensions (mm)
| Thickness range |
Tolerances thickness |
Width range (mm) |
| 0.30 | ± 0.02 | 925 |
Paint line tested properties of top coat
| Property |
Measured by |
Result |
| Hardness | Pencil | ≥ 1 HB |
| Adhesion | Reverse impact T-bend | Pass Max 3T |
| Specular Gloss | 60° | 30 - 50 units |
| Paint Film |
Top Coat Back Coat |
13 ± 2 μm 5 ± 1 μm |
PRODUCT CARE/STORAGE
Care and storage:
• Keep your Supa-Corr roof sheet dry at all times.
• If the roof sheet is to be stored, it must be stored in a cool dry environment, with the protective packaging.
• Projects more than 5 km from the ocean or 5 km from a highly industrial environment require a 6-monthly wash down. Projects less than 1 km from the ocean or 1 km from a highly industrial environment, and projects with auxiliary installations, require a 4-monthly wash down.
• All wash downs need to conform to our recommendations as detailed in our “Recommended cleaning procedures for coated steel sheeting” guidelines.“
Welding:
• Resistance spot welding, projection welding, fusion welding, MIG, and TIG welding are recommended at the relevant settings.
• Resistance seam welding is not recommended.
• Projects more than 5 km from the ocean or 5 km from a highly industrial environment require a 6-monthly wash down. Projects less than 1 km from the ocean or 1 km from a highly industrial environment, and projects with auxiliary installations, require a 4-monthly wash down.
• All wash downs need to conform to our recommendations as detailed in our “Recommended cleaning procedures for coated steel sheeting” guidelines.“
Fasteners and accessories:
• All screws should have rubber sealing washings which should be free of carbon fillers.
• Fasteners should be as durable as the roof sheeting.
• A minimum class 3 should be used for all Supa-Roof steel.
• If an inferior class fastener is used, the replacement of the sheet will be at an earlier interval.
General notes:
• Touch up paint is not recommended.
• Never use abrasive or solvent type cleaners.
• Don’t use rough cleaning cloths, wire brushes or steel wool to clean the roof.
• Supa-Roof steel is compatible with other materials such as aluminium, galvanised, or equivalent aluminium/zinc coated steel; however it is advisable to avoid mixing different types of material on one project to prevent the possibility of corrosion.