GRP flat roofing

Want a reliable, long-lasting flat roof material? Then here’s why you should consider installing GRP flat roofing.

GRP flat roofing

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GRP flat roofing

GRP is a popular flat roofing material; it is commonly used in order to ensure flat roofs remain leak-free and up to scratch.

What is the difference between GRP and fibreglass?

GRP (Glass Reinforced Plastic) is the technical name for what is more often known as fibreglass. It was originally developed back in 1938 for use in insulation, however it is now used for a variety of purposes in many different industries. Also sometimes referred to as FRP (Fibre Reinforced Polymer) GRP is extremely versatile as well as being hard-wearing and waterproof. These qualities make GRP perfect for use as a roofing material. If you are concerned about GRP’s appearance then rest assured: it can be made in a range of different colour options. It can also have special finishes applied, such as a non-slip surface. This all means that GRP is now a feasible alternative to more conventional roofing materials.

How long will a GRP flat roof last for?

A lot of tests and research have been carried out regarding the life expectancy of a GRP roof and studies have estimated that they can last somewhere in excess of 50 years. This is proven by the fact that many glass fibre laminates, which were manufactured back in the 1940’s, are still used today. Research has shown GRP doesn’t really deteriorate, in fact in the testing periods that have been trialled, it has remained in the same condition throughout. Some experts would even argue that GRP products applied by a specialist company could potentially last a lifetime.

What colours does GRP come in?

Thanks to advances in recent technology, GRP can be manufactured in a range of different colours, with something to suit every need.

Can GRP only be used for roofing?

No, whilst that is perhaps its most common use, GRP can be used for a variety of different purposes, including:

  • The automotive industry
  • In boats
  • As building products
  • For constructing walkways

What are the benefits of GRP for flat roofing?

Whilst GRP is a useful material for all roofs, it is particularly beneficial to flat roofs because:

  1. First off, there are a number of health and safety benefits to installing a GRP roof. GRP products are cold-laid (this means that they do not require any type of heat treatment and can just be laid as they are). This eliminates a certain level of risk to both the GRP roofing installers as well as anybody else on the site. This also has a financial benefit: because GRP roofing systems are cold-applied they do not attract the high levels of insurance premiums that other roofing materials which require hot installation do.
  2. GRP flat roofs are not only very durable but they are also 100% waterproof, this gives them the edge over other materials that may have been traditionally used for flat roofing.
  3. Due to the nature of GRP, the entire GRP area of the roof is one huge GRP membrane; this eliminates the need for seam joints or welds, along with the consequential maintenance.
  4. GRP roofing is entirely UV resistant.
  5. GRP forms a very adaptable roofing system, which easily allows for new features such as balconies or a walkway on the roof area. You could also easily add extras such as roof lighting.
  6. The overall and largest benefit of having a GRP roof installed, however, is that as long as it is correctly fitted it should remain leak-free for life. A particular advantage to those with flat roofs, who may encounter leaks more frequently.

Can GRP be fire retardant?

If fire safety is a must in your household then you can use GRP which is formulated with special fire retardant resins and topcoats.

What does the end result look like?

The end result can look however you choose, as the surface and colour of a GRP laminate can be altered to suit your requirements. You could opt for a smooth or textured finish, as well as choosing from a wide array of different colours.

Is GRP ok in serious weather conditions?

GRP is perfect for those who frequently encounter adverse weather conditions and temperature extremes alike. GRP is often used on boats, which shows that it performs well when put in cold climates and/or rain.

How much does a GRP roof cost?

It depends on the scale of the job and how big the job is. However, replacing an old roof with a new GRP flat roof can cost you can upwards of £1,000 for an area measuring 5m x 4m. In order to get a quote more specific to your needs it would be advisable to call several local roofing companies who specialise in GRP roofing and ask them for a quote.

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