Almost every premium roofing decision in Nigeria comes down to the same two options: genuine Gerard stone-coated steel tiles, or aluminium roofing. Both are excellent. Neither is universally better. The right answer depends on where the building sits and what it needs to do.

What Gerard tiles do well

Gerard tiles are zinc-aluminium steel with a textured stone-chip coating. That coating is the point: it holds colour against the sun far longer than painted profiles, and it gives the roof the substantial, tiled appearance that premium homes are designed around.

• A genuinely tiled look, in several profiles
• Excellent colour retention under UV
• Manufacturer warranties up to 50 years
• Light on the structure compared with concrete tiles

What aluminium does well

Aluminium’s defining property is simple: it does not rust. For any building within a few kilometres of the lagoon or the sea, that single fact often settles the decision.

• Complete immunity to corrosion
• Long, continuous sheets for wide spans
• Reflective finishes that lower attic heat
• Decades of near-maintenance-free service

How we actually decide

On a coastal or waterfront site, we lean aluminium almost every time. On an inland premium home where the design calls for a rich, tiled roofline, Gerard is usually the better fit. On large industrial spans, long-span aluminium or steel wins on cost and watertightness.

The mistake is choosing the material first and the site second. We look at location, exposure, span and design intent — then recommend.

If you are weighing the two for a specific project, the fastest way to a clear answer is a site inspection. We will tell you which system we would specify, and why.

One of the most damaging things that can happen on a roofing project is material substitution — genuine product quoted, imitation product delivered. The fake looks convincing when it goes up. The problem shows two or three seasons later, when the colour fades and the steel begins to rust.

Why fakes exist

Genuine stone-coated steel tiles carry a real cost because the steel grade, coating and stone chip are all controlled. Imitations cut corners on each, then sell at a price that looks like a bargain. On a large roof, the margin is large enough to tempt substitution.

How to protect yourself

• Buy through verified channels. Authorised supply comes with traceable batch documentation.
• Register the warranty. A genuine product can be registered with the manufacturer; an imitation cannot.
• Check on delivery. Verify that what arrives matches what was specified, before it goes up.
• Use supervision. An independent check at delivery is the most reliable defence against substitution.

The cheapest sheet on the market is rarely a saving. It is a roof you will pay to replace early.

We supply genuine product with batch records and register warranties on our clients’ behalf — and our supervision service is specifically engaged to catch substitution before it becomes your problem.