Roof & Wall Cladding.
Profiled roof and wall cladding manufactured by Prime in steel and aluminium, in every colour of the customer's choice — including the Aquaproof self-locking profile that takes solar panels without ever penetrating the sheet.
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Specification
Specified to the micron.
Aluzinc thickness
0.4 – 0.9 mm
Yield strength 340 MPa.
Aluminium thickness
0.6 – 0.9 mm
Yield strength minimum 140 MPa.
Top coating
Min. 20 microns
PVDF, HD or RMP, in a range of colours.
| Property | Aluzinc | Aluminium |
|---|---|---|
| Thickness | 0.4 mm – 0.9 mm | 0.6 mm – 0.9 mm |
| Yield strength | 340 MPa | Min. 140 MPa |
| Substrate / alloy coating | Aluminium–zinc alloy (Aluzinc), min. 150 g/m² | Aluminium substrate — no alloy coating required |
| Top coating | Min. 20 microns — PVDF or RMP | Min. 20 microns — PVDF, HD or RMP |
| Bottom coating | 8 microns | Min. 8 microns |
| Colour range | Available in a range of standard colours | Available in 5 standard colours |
Weight and thickness are subject to rolling tolerance as per ASTM standards. Base material conforms to ASTM A 653 or equivalent standards — JIS 3302, EN 10326 / 10327 and IS 277.
Aquaproof
100% leak proof, no exposed screws.
Aquaproof is a 100% leak proof profile sheet with self-locking caps at alternate ribs, optional at all ribs. Tighten the sheet with screws, then press the caps onto the ribs.
Solar
Panels without roof penetration.
Solar panels install above the Aquaproof profile using special clamps that tighten without penetrating the roofing sheet — so the roof stays 100% leakproof after fixing.
Corrosion
ASTM A 653Barrier and galvanic protection.
The combined action of aluminium and zinc makes Alu-Zinc more effective than steel coated with pure zinc, giving both barrier protection and galvanic corrosion protection.
Range
Profiles and finishes.
Aquaproof
Self-locking cap profile — solar ready, no exposed fasteners.
Tile and Bravo profiles
27/195 tile profile and Bravo tile profile for pitched roofs.
Trafford 25/252
Classic trafford profile in steel or aluminium.
Six rib and decking
Six-rib profile and decking profile for roof, wall and floor.
Supporting data
Substrate, corrosion, coatings.
PPGI — zinc coating (galvanized)
Hot-dip galvanized steel.
The base steel material is hot-dip galvanized with a zinc coating as per ASTM standard, in a coating thickness range of 180 g/m² to 270 g/m² — subject to confirmation at the time of placing the order.
180 – 270 g/m²
Zinc coating thickness
PPGL — galvalume (Alu-Zinc)
A two-phase alloy coating.
- The Alu-Zinc coating has a unique micro-structure.
- An alloy layer forms at the interface between the coating and the steel substrate.
- The overlay coating has two main phases — an aluminium-rich dendritic phase and a zinc-rich interdendritic phase.
AZ 150
Aluminium–zinc alloy coating
Mechanism
The coating sacrifices itself first.
- On exposure, the zinc-rich interdendritic portion of the coating corrodes preferentially.
- The coating is sacrificial to steel and serves galvanically to protect the substrate.
- As the zinc-rich portion corrodes, the interdendritic interstices fill with zinc corrosion products.
- The coating transforms into a composite layer of aluminium-rich matrix locking in those products, acting as a physical barrier and corrosion inhibitor.
Result
Superior corrosion resistance.
The mechanism in Alu-Zinc material results in both barrier protection and galvanic corrosion protection. The combined action of aluminium and zinc makes Alu-Zinc more effective than steel coated with pure zinc.
Polyester (RMP)
An economical long-life coating.
External side coated with 20–25 microns polyester paint and internal side with 6–10 micron epoxy primer.
20 – 25 microns
External polyester
PVDF
High alkaline and UV resistance.
This coating has high resistance to alkaline atmosphere and excellent UV resistance compared to polyester coating. Coating thickness 20–25 microns on the external side, internal side with 5–7 micron epoxy primer.
2000 hrs
QUV colour change — ASTM G 53
Ready when you are
Specify roof and wall cladding.
Send us your span, purlin spacing and exposure conditions — we will recommend the substrate, gauge and coating system, and quote it.