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Fibreglass Roofing Cost Guide

The type of roofing solution you require should be one of your considerations if you plan to have your roof replaced or a new one installed. In this article, we look at the fibreglass roofing cost and what it entails.

Fibreglass flat roofing is one of the most popular roofing systems today. It’s also commonly known as a GRP (Glass Reinforced Polyester) roof. If you choose to learn more about this kind of roofing in-depth, you’ll discover that these two terms are frequently used interchangeably.

In addition to keeping flat roofs waterproof, GRP is made of plastic that is strengthened with tiny glass fibers. It is also used in water tanks, trucks, boats, and ponds. Fiberglass, also known as GRP, is a straightforward and secure material that offers a long-lasting superior finish and is simple to work with.

Due to its popularity, low cost, ease of maintenance, and durability, GRP and fibreglass roofing is ideal for the unpredictable weather in the UK.

Fibreglass Roofing cost

How much does fibreglass roofing cost?

The price will vary depending on a few factors, such as the type of roof being installed, just like with many roofing systems and products. The table that follows shows that prices can range from £35 to £130 per square meter.

Insulated Fibreglass Roof£70 to £150 per m22 to 5 days
Fibreglass Roof Covering£40 to £60 per m22 to 5 days

You should expect to pay, on average, £35 per m2 for a straightforward fibreglass roof covering. Installing this typically takes one to three days. A full, insulated fiberglass roof will typically cost between £75 and £130 per m2, take one to three days to install, and cost between these ranges.

When searching for your new roofing system, keep in mind that some fiberglass roofs will have longer guarantees; this can push up the final price by £7 to £20 per m2.

Is the high fibreglass roofing cost justified?

Looking at products to renovate or replace an existing flat roof, fibreglass roofing is at the higher end of the price spectrum. However, in terms of weather resistance and longevity, it has one of the longest lifespans of all the products on this market and requires essentially no maintenance. It also has a lovely laminated finish, so it looks the part as well.

New fiberglass roofing cost will depend on a number of variables, including the following:-

  • Do you also need to consider the cost of repairing your roof and making any necessary structural repairs to the roof frame before the fibreglass is laid?
  • Do you require any repairs or even replacement of the rainwater equipment, including the gutters and downpipes?

Factors that affect the cost of fibreglass roofing

Like many other products, fiberglass roofs come in different price ranges and are influenced by various factors. We examine some of the cost-influencing factors in more detail to help you get a better idea of what to expect in terms of prices when looking for your fibreglass roof.

The Size of the Roof

Like most building materials, the price is likely to increase with the size of the area being worked on. Before you hire anyone or start any work, it’s crucial to consider the size of your roof and how this will affect your budget.

The Complexity of the Installation

The complexity of the installation will be a significant cost-determining factor. For instance, the final cost will go up if the roof area you have has an awkward shape or is difficult to access. This is because installing the roof will require more labor and may call for multiple professionals, which will add to the overall labor cost.

The Roof Finishes

Like other types of roofing systems, GRP and fibreglass roofs are available in a variety of finishes, and these will affect the final price you pay.

For instance, adding a top coat finish is one of the most crucial steps in making sure a fibreglass roof will withstand the humid UK climate. This is a very effective way to ensure that the roof is weatherproof, and even though the initial investment is expensive, it is worthwhile because it can greatly reduce the need for repairs in the future.

This top coat can be found in a wide range of hues and shades, and because it doesn’t have a rubbery texture or appearance, it is very aesthetically pleasing and ideal for matching the architectural style of the building.

Property location

The cost of things can occasionally depend on where you live in the country, just like with many professional services.

The cost of living is typically higher in larger cities and nearby towns compared to smaller, more rural communities, and this will generally affect how much you pay for things like roofing labor costs and materials.

If Any Structural Adjustments Are Needed

Whether any structural alterations are required before the roof can be installed will also have an impact on the cost of your fiberglass roof.

Does the expert roof installer, for instance, need to make any repairs to the roof frame? Or do the gutters or downpipes need to be adjusted or repaired?

If any of these modifications are necessary, installing your roof may take longer, necessitate hiring more laborers, and necessitate ordering additional materials, all of which will increase the cost.

Fibreglass roofing installation process

The following section gives a brief overview of what goes into installing a fibreglass roof for you, whether you’re thinking about doing this job yourself or wondering what to expect from a professional roof installer.

  • Once you’ve chosen the expert roofing company you’ll be working with for this project, they’ll typically make arrangements for the order and delivery of the necessary materials before scheduling a time to perform the actual work.
  • The preparation of the roof deck on the day of installation will begin with the removal of the old one, if applicable.
  • The edge and fixing trims will be installed after the decking has been installed, securely fastened, and sealed to guard it against moisture damage.
  • In addition to completing the look of the roof, these trims will act as an additional layer of defense against the elements, particularly rain and wind. Normally, these are attached to the main decking boards with nails or bonded with a commercial, waterproof adhesive.
  • The expert roofer will then prepare the roof for laminating by applying a special resin, which will then need to cure for about 30 minutes or so.
  • The final step, the top coating, is then prepared for after the laminate and catalyst layers have been properly laid out and secured.
  • The new fibreglass roof will be finished with a top coating, which also offers excellent defense against things like water damage, wind, and other weather elements. The top coating is applied to all of the trims and edging to protect every part of the roof while also giving the structure a uniform, seamless appearance.

Tips to save money on fibreglass roofing installation

Fiberglass roofs is without a doubt, regarded as the top of the price range for brand-new flat roofs. It might be worthwhile to take other materials into consideration that fit your needs and budget.

However, it’s also important to note that purchasing fibreglass can be a wise decision because it’s simple to install, offers a nice, long-lasting finish, has a very long lifespan, and requires little to no maintenance. Although initially more expensive, you’ll typically end up saving money in the long run.

If your roof is already lined with tongue and groove Oriented Strand Board (OSB) and you’re looking to save money and are skilled at DIY, you might also want to think about a fibreglass or GRP roofing kit.

These kits come with everything you need to install the roof yourself, such as matting, bandages, resin, a hardening catalyst to seal the roof, and a colored topcoat. They also include resin, bandages, and other materials. When installing the fiberglass, you must be aware of the precise dimensions and anticipated temperature of your roof in order to determine how much catalyst you will need to ensure that the resin cures properly.

As with any DIY project, safety should always come first. Only attempt this if you are confident that you can complete it without harming yourself or the building, as doing so could end up costing much more to repair than the initial investment.

Why install fibreglass roofing?

Despite the high fibreglass roofing cost, there are many other advantages of installing it.

Although fiberglass roofs are very common and a great investment, they won’t always be the best option for every homeowner.

So, we’ve listed some of the benefits and drawbacks of a fibreglass roof so that you can learn more about it and determine whether it’s the right choice for you or not.

A very robust materialExpensive compared to other types of roofs
Durable – can last for more than 30 yearsInstalling takes a long time.
Maintenance is simpleCan be delicate to sunlight, which could eventually cause the top coating to fade.
Weatherproof and little risk of leaksFor the installation, dry conditions are necessary.

Ensuring the Professional Is the Right Fit

A major decision, hiring a professional to perform any type of work on your home requires careful consideration to ensure that you select the best roofing company. This is particularly true when discussing issues like your roof.

We’ll therefore go over our best advice and suggestions for ensuring that the professional you hire is the right one for you in the section that follows.

Get a Written Quote

You must always get quotes in writing for any major project around the house. It’s one of the best ways to get a complete breakdown of everything that’s included in the cost and it also helps to clear up any price-related misunderstandings.

Obtaining quotes in writing also allows you to review them at your leisure without feeling compelled to commit to anything, which is another reason why doing so is a good idea.

Check Their Experience

If you hire someone to work on your roof, you should confirm that they have the necessary experience to complete the work to a high standard and ensure your safety.

By probing them about the job, you should be able to quickly determine their level of experience, but if you don’t feel like they’re forthcoming with answers, don’t be afraid to ask them.

Ask for References

Another excellent way to determine the level of experience your chosen professional has is by asking for references and testimonials from previous clients. These can typically be easily found on their website, if they have one, on any social media accounts the company has, as well as on unbiased review websites and even through word of mouth.

Look at Photos

It’s always worthwhile to look through their social media pages, website, and perhaps even any print brochures they might have for marketing their business because photos of previous work done are excellent for showcasing the kinds of results you can expect if they work for you.

Verify They Have Insurance

If you don’t see insurance mentioned anywhere on their website or in any quotes they give you, don’t be afraid to ask them if they have it. Professional tradespeople should have insurance, especially when it comes to tasks like working on roofs.

Check if They Offer a Guarantee

Some businesses will be able to provide you with a guarantee on the materials, the job itself, or perhaps even both, even though not all roofing professionals will be able to do so. If a guarantee is something that matters to you, be sure to inquire about it up front so you don’t learn after you’ve signed anything that one isn’t provided.

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