Fibreglass roofing, also known as GRP (Glass Reinforced Plastic) roofing, is a popular choice for flat roofs on homes and commercial properties. Known for its seamless appearance, durability and waterproof properties, a professionally installed fibreglass roof can provide a long-lasting solution for extensions, garages, balconies, roof terraces and other flat-roofed structures.
At Weymouth Fibreglass Roofing, we specialise in GRP roofing across Weymouth, Portland, Bridport, Dorchester, Dorset and the wider South West, using the market-leading Cure It GRP roofing system alongside premium roofing products.
What Is Fibreglass Roofing?
Fibreglass roofing is a GRP roofing system made using fibreglass reinforcement and resin, which are applied to a suitable roof deck to create a strong, seamless waterproof membrane.
Unlike traditional roofing materials that rely on numerous joints and seams, a GRP roof forms a continuous surface when correctly installed. This makes fibreglass particularly well suited to flat and low-pitched roofs where effective waterproofing is essential.
How Does a Fibreglass Roof Work?
A typical fibreglass roofing system consists of several carefully installed components. The roof deck is first prepared before the fibreglass reinforcement and resin are applied. Once cured, the system creates a strong waterproof layer across the roof.
The roof is then finished with the appropriate topcoat, trims and detailing to provide protection from the elements and a clean, professional appearance.
Correct preparation and installation are essential. The performance of a GRP roof depends not only on the materials used but also on the quality of the workmanship and the way the system is installed.
What Are the Benefits of a Fibreglass Roof?
There are several reasons why GRP roofing has become a popular choice for flat roofs.
Durability
A professionally installed fibreglass roof is designed to withstand exposure to the elements, including rain, wind and changing temperatures.
Waterproof Protection
The seamless nature of a GRP roofing system provides an effective waterproof barrier, helping protect the building beneath from water ingress.
Low Maintenance
Fibreglass roofs generally require relatively little maintenance once installed. Regular inspections and keeping outlets and drainage areas clear can help maintain the roof over time.
Versatile Design
GRP roofing can be used on a wide variety of flat-roofed structures, including extensions, garages, balconies, garden rooms, roof terraces and commercial buildings.
Clean, Professional Finish
Fibreglass roofing provides a neat and seamless appearance and is available in a range of finishes and colours to complement the property.
How Long Does a Fibreglass Roof Last?
The lifespan of a fibreglass roof depends on a number of factors, including the quality of the materials, the installation, the roof structure, exposure to the elements and ongoing maintenance.
Using a recognised roofing system such as Cure It, combined with quality preparation and professional installation, can help provide a durable roofing solution designed for long-term performance.
Regular inspections and maintenance are also important. Keeping the roof clean, checking drainage points and addressing any damage promptly can help maintain its condition.
Is Fibreglass Roofing Suitable for Extensions?
Yes. Fibreglass roofing is particularly popular for house extensions because it can provide a durable waterproof covering while allowing for a wide range of roof designs.
GRP roofing can also be combined with rooflights and roof lanterns to introduce natural light into an extension.
At Weymouth Fibreglass Roofing, we supply and install high-quality VELUX rooflights and Korniche roof lanterns, allowing us to provide a complete roofing solution for new extension projects.
Can an Existing Flat Roof Be Replaced With Fibreglass?
In many cases, an existing flat roof can be replaced with a modern GRP roofing system. However, the existing roof structure and condition need to be assessed before deciding on the most suitable approach.
If your roof is suffering from leaks, cracking, deterioration or repeated repair issues, a complete replacement may provide a more suitable long-term solution than continuing with individual repairs.
We can assess your existing flat roof and discuss the available options, including whether a fibreglass replacement or warm roof upgrade may be appropriate.
What Is a Warm Roof?
A warm roof is a type of flat roof construction where insulation is installed above the structural roof deck. When replacing an existing flat roof, upgrading to a warm roof can be an opportunity to improve the thermal performance of the building.
A warm roof can be incorporated into a new fibreglass roofing system, subject to the existing structure and requirements of the project.
If you’re considering replacing an old flat roof in Weymouth, Portland, Bridport, Dorchester or Dorset, we can discuss whether upgrading to a warm roof system would be suitable for your property.
How Much Does a Fibreglass Roof Cost?
The cost of a fibreglass roof varies depending on the size and design of the roof, the condition of the existing structure, access, insulation requirements, rooflights or roof lanterns, and the level of preparation required.
A straightforward garage roof will have very different requirements from a large extension, balcony or roof terrace.
For this reason, we recommend arranging a quotation based on the individual requirements of your project rather than relying on a standard price per square metre.
How Is a Fibreglass Roof Installed?
Professional installation involves several important stages, including:
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Inspecting and preparing the roof structure
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Preparing the roof deck
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Installing the appropriate trims and detailing
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Applying the fibreglass reinforcement and resin
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Allowing the system to cure correctly
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Applying the appropriate topcoat
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Inspecting and finishing the completed roof
Following the manufacturer’s installation requirements at every stage is essential to achieving the best possible result.
Why Choose Cure It GRP Roofing?
At Weymouth Fibreglass Roofing, we use Cure It, a market-leading GRP roofing system, along with premium roofing products.
We believe that the quality of the materials is just as important as the quality of the installation. Our experience in the marine industry, combined with years of roofing, carpentry and construction experience, gives us specialist knowledge of fibreglass materials and their applications.
We focus on careful preparation, attention to detail and professional installation to provide a high-quality finished roof.
Fibreglass Roofing in Weymouth, Dorchester & Dorset
Based in Weymouth, we provide fibreglass and GRP roofing services throughout Dorchester, Portland, Bridport Dorset and the wider South West.
We work on new and replacement flat roofs for homeowners, landlords, builders and commercial customers, including extensions, garages, balconies, roof terraces and garden rooms.
Whether you’re considering a new fibreglass roof, replacing an existing flat roof or looking to upgrade to a warm roof system, we’re happy to discuss your requirements and provide a quotation.
Get a Quote for Your Fibreglass Roof
If you’re considering fibreglass roofing in Weymouth, Portland, Bridport Dorchester or Dorset, contact Weymouth Fibreglass Roofing to discuss your project.
From new GRP roofs and replacement flat roofs to warm roof upgrades, rooflights and roof lanterns, we can provide a complete roofing service using quality materials and the Cure It GRP roofing system.