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What is a Fibreglass Roof?

Home Roofs What is a Fibreglass Roof?
fibre glass roofing

In the UK, you’re faced with many different roofing varieties that all claim to be amazing. Amongst some of these options is a fibreglass roof. You may have heard of this before, but it’s possible you have no idea what one of these roofs are and the benefits they bring. As such, we’ve written a blog that’s all about fibreglass roofing to help you learn more about it.

What is fibreglass roofing?

Fibreglass roofing is often referred to as GRP roofing because it’s made out of glass reinforced plastic. This is basically just another term for the material known as fibreglass. These roofs are made out of this material mainly because it’s incredibly strong and durable, but also exceedingly light and flexible. Add to this the incredible waterproofing abilities, and you have yourself the perfect material for a roof.

Perhaps the most interesting factor of fibreglass roofing is that it’s completely flat. This is why you often see it advertised as fibreglass flat roofing. As such, your home can be given a unique look by having a completely flat roof as opposed to the traditional slanted variation. You could also install a fibreglass flat roof on other structures such as a garage or shed.

What makes up a fibreglass flat roof?

You know the basics of a fibreglass roof, but what’s involved in the whole process of making and installing one. Usually, you have a variety of different materials all brought together to create the roof. This includes a form of decking, some resin, fibreglass matting, a topcoat, and some fibreglass trims.

The whole process starts with the decking being laid down and attached to the roof structure. It’s absolutely essential that the decking boards are firmly secured in, or else the whole structure of the roof is in jeopardy. Next, the edge trims are fitted – using fibreglass materials. Following this, we add a laminate that’s made out of the resin and fibreglass matting. It bonds to the decking, and we wait for it to set before adding the topcoat onto it, so there’s a lovely colourful finish. If people walk on the roof for whatever reason, we can supply a non-slip topcoat to prevent accidents.

That’s pretty much all that’s included in a fibreglass flat roof; it’s not the most overly complicated procedure, which is why it’s become so popular. The quick installation period is just one of the few reasons a fibreglass flat roof may be perfect for you.

What are the benefits of fibreglass flat roofs?

First of all, the fact that the roof is added as a liquid (in the form of the resin and matting) means that you can shape it to pretty much any design you can think of. To add to this, you also have a choice between so many different trims to suit your particular needs. All in all, there’s much greater flexibility with regards to roofing design when you have a fibreglass one.

From an installation perspective, it’s not just a lot quicker and easier than installing traditional roofing, but it’s also safer. You don’t need any machinery or equipment around your property, and there’s no heat involved – which is usually the case with traditional roof installations as heat is required to set the roof.

Of course, the fact that fibreglass is such a strong and durable material is always going to be a benefit. This leads to long life expectancies of well over 20 years for the average fibreglass flat roof. In conjunction with this, the roofing is a nice solid flat construction with no gaps or seams in place. As such, it’s far more watertight than a traditional roof.

Lastly, traditional roofing is incredibly difficult to clean and maintain. You need special access to the roof, and the slanted nature makes it so dangerous. With a fibreglass roof, you can stand on the flat surface and easily brush off any debris or wash any dirt with a hose. It makes maintenance a breeze, so you can keep the quality of your roof for a lot longer as well.


To round everything off, we’ll briefly summarise everything that’s been covered. A fibreglass roof is a flat roof made out of glass-reinforced plastic materials. It is incredibly flexible, durable, and waterproof. This type of roof is perfect if you want to choose a specific design that you’ll never be able to achieve with traditional offerings, and it lasts for decades.

If you’re interested in getting your hands on a fibreglass roof, then get in touch with us today. We’ve fibreglass specialists, and we’re more than happy to help out!

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