Do you use sub-contractors?

No. As your Topseal Approved Installer, only highly trained and experienced Cotswold Fibreglass Roofing Ltd employees will install your new roof. 

As well as being trained by the manufacturer of the Topseal system, our team are friendly, knowledgeable and very experienced craftspeople with a wealth of experience on building, roofing and property restoration projects in Gloucestershire and surrounding counties.

Because our team members are so much more than just ‘flat roofers’, you can be sure they have the skills and experience needed to give you the first-class result you expect.  And if they are doing additional works at the same time as your flat roof repair, you can be confident that they have all the required skills and expertise. 

Contact us for more information and to arrange a visit from our estimator.

How long does it take to install a GRP flat roof?

For a straightforward job such as a domestic garage roof (area c. 20m²), Cotswold Fibreglass Roofing Ltd, your local Topseal Approved Installer, would expect a team of two people to complete the flat roof installation ( re-decking, lamination and topcoating) within one day.

For larger or more complicated projects, or if serious deterioration of the roof joists means that extensive structural repairs are needed, the work may take longer. Contact us for more information and to arrange your free, no-obligation quotation.

What standards does your roofing meet?

Topseal GRP roofing, as installed by Cotswold Fibreglass Roofing Ltd, meets the following recognised standards. This gives you further reassurance that the materials and workmanship will give the long-lasting, high performance results that you expect.

Standards Compliance

• BBA (British Board of Agrément) certification
• Fire retardant to Class 1 (if required)
• Part L Building Regulations compliance (as of April 2006):
• Topseal can be specified with a calculated ‘U’ value of 0.25W/m2K or 0.20W/m2K (Calculated in accordance with BS EN ISO 6946)

What is BBA certification?

The British Board of Agrément (BBA) is an organisation partnered with the government, whose governing board includes representation on behalf of the Office of the Deputy Prime Minister. The BBA provides authoritative and independent information on the performance of building products.

Assessment for BBA certification involves three distinct areas: 

• Laboratory testing
• Site inspections undertaken by the BBA’s own Inspection Services team
• Factory production control

Topseal’s British Board of Agrément Certificate (viewable at [www.bbacerts.co.uk no.93/2932]) guarantees that each Topseal installation can only be completed by trained and approved contractors and that every Topseal branded material must undergo constant quality control checks and be traceable right back to manufacture.

Why is BBA certification important?

Many Local Authorities or larger contracts will require the security of BBA certification in the roofing system used by their contractors. This is an established standard of quality throughout the whole of the building industry. 

Because of this, it is important that all approved Topseal contractors maintain a high standard of service and always operate according to the guidance of the Topseal Installation Manual as this forms part of the basis for BBA certification. Deviating from this guidance not only jeopardises the BBA certification of the Topseal system, but also the individual contractor’s approval as a Topseal contractor.

Any questions about specific technical aspects of the Topseal GRP roofing system can usually be answered by referring to the BBA certificate. 

Contact us for more information.

What accessories and extras are available?

Several accessories and extras are available so Cotswold Fibreglass Roofing can personalise your Topseal GRP roof to your exact requirements. These range from the numerous trims and edgings that we can use to ensure a perfect roof finish, through to a wide choice of colours and several different surface finishes that are also available.

Make other property improvements during your flat roof installation

Because the Cotswold Fibreglass Roofing team consists of experienced builders and joiners, we can also combine other property improvements such as fitting a replacement garage door as well as fixing that leaky garage roof. How many flat roofers do you know who can do that?

Trims and edgings

Depending on your roof, various trims and edgings are available, including the following:

• fascia trims
• edge trims
• simulated flashings
• simulated rolled joints 
• gulley trims

Other details are available too. We’ll discuss these with you when we prepare your quotation.

Colours and surface finishes

As standard, your Topseal roof is available in one of two colours. A wide range of other colours can be specified (at extra cost) in any colour from the Topseal colour chart or in any BS4800 colour. If required, your new Topseal roof can also be installed with a non-slip aggregate finish.

Many extra fixtures and fittings can be added during installation

Because GRP is an extremely versatile roofing material, many fixtures and fittings can easily be added during or after installation; Topseal is also perfect for creating balconies, terraces or even green roofs. Examples include the following:

• Vents
• Solar Panels
• Turbines
• Air conditioning units
• Generators
• CCTV Cameras
• Roof terrace balustrades
• Roof gardens and green roofs

Additionally, features such a skylights and other roof furniture can easily be incorporated into the substrate.

Put new life back into your garage

Because your Cotswold Fibreglass Roofing team consists of skilled joiners, builders and other tradespeople, we can easily update your garage (or other parts of your property) while we are installing your Topseal flat roof.

• New garage windows
• Replacement garage doors (manual or powered)
• Security lighting

Whether you’re thinking of replacing your garage door or not, please tell us how we can customise your durable, good-looking new fibreglass roof. [Contact us] for more information and your free, no-obligation quotation.

Is GRP roofing environmentally friendly and energy efficient?

The answer is most definitely ‘yes’. From the materials and processes used by Topseal Systems Ltd, through to the environmentally friendly ways that Cotswold Fibreglass Roofing can install your GRP roofing, there are many environmental benefits.

Topseal roofing materials

For a start, GRP has a good environmental profile, with much less energy being used in its manufacture compared to many other roofing materials. Furthermore, the processes used by Topseal to produce trims and resins have been reviewed and adapted to reduce the amount of waste produced.

Topseal is only installed with OSB3 18mm decking. Many OSB3 manufacturers have full certification from the Forestry Stewardship Council (FSC), a major, highly credible certifier of wood producers with the support of many environmental groups.

Environmentally friendly installation

Topseal roofs are completely cold-applied and don’t need gas-powered burners or torches. The cured polyester resins used in the Topseal laminate do not give off environmentally harmful substances, nor do they create any other toxic by-products. Because the long lifespan of GRP (a minimum of 30 years, as verified by the Building Research Establishment) outperforms the 15–20 year maxima likely from other flat roofing systems, GRP roofing also eliminates the environmental cost of producing and installing replacement roofing at shorter intervals.

Energy efficiency

Topseal GRP roofs can be installed to comply with the latest ‘Part L’ Building Regulations for improving the thermal efficiency of buildings.

Green roofs

The high durability and long life of GRP makes it ideal for intrinsically environmentally friendly green roofs.

An ideal roof for the environmentally conscious

The unique flexibility of the Topseal GRP roofing system makes it easy to affix installations such as wind turbines, solar panels or skylights at any stage of the roof’s life.

It all adds up to a durable, good looking roofing system that  satisfies your environmental concerns as well as enhancing your property and saving you money. Contact us for more information.

What guarantee do you offer?

Rest assured that, as a proven flat roofing system installed by Cotswold Fibreglass Roofing Ltd’s Topseal-trained and approved roofing craftspeople, your Topseal flat roof is guaranteed by one of the most comprehensive flat roof guarantees. The Topseal guarantee is a 20-year full guarantee, which can be called upon in the unlikely event that your roof should fail for any reason.

A 25-year guarantee

Cotswold Fibreglass Roofing Ltd is a fully trained and approved Topseal contractor with an established reputation; we offer a 25-year guarantee (transferable to a future owner of the property) for each Topseal installation. In the unlikely event of a problem with your new Topseal roof, please contact us first to resolve your concerns.

The extra reassurance of Topseal Guarantee Protection

All Topseal installations completed by trained and approved contractors can also be protected by additional insolvency cover beyond that provided by the Topseal manufacturer’s guarantee. Topseal Guarantee Protection is available on all contracts where the Topseal BBA waterproofing system has been installed, in accordance with the manufacturer’s written specification, by a trained and approved Topseal contractor.

One of the benefits of a manufacturer-backed warranty is that, in the unlikely event of a problem occurring with a roof, it can be resolved quickly and efficiently. 

Your trained and approved contractor

As a trained and approved Topseal contractor, our contracting team has been trained to the highest standard for installing your GRP roof. The quality of our approved contractors’ work is also monitored by random on-site inspections made by Topseal Systems Ltd site support and customer service staff.

Full details and a copy of the guarantee can be obtained from Cotswold Fibreglass Roofing or by contacting Topseal Systems Ltd directly.

What are the benefits of GRP roofing?

Glass reinforced plastic (GRP) roofing is a proven roofing material that's been used successfully in the UK for more than half a century. Modern GRP roofs give a long, maintenance-free life and excellent performance, even when subject to pedestrian trafficking that would damage a felt roof.

The benefits of Topseal GRP roofing include the following:

• Proven technology for long life and durability
• Monolithic joint-free construction ensures waterproofing
• Tough surface means it can be walked on (balconies and roof terraces)
• British Board of Agrément (BBA) certification gives peace of mind
• A minimum 20-year guarantee gives further reassurance
• Topseal is only installed by trained/approved contractors – you’re sure of a good job
• A wide choice of colours and finishes gives your roof the appearance that you want.
• High security: Topseal GRP roofing can’t be cut with a knife.
• Cold installation means no heat or burners are involved
• Topseal GRP roofing is easy to repair in the unlikely event of damage
• GRP roofing can be installed as fire retardant to Class 1 if required.
• A choice of non-slip finishes for safety.

Still need convincing? Contact Cotswold Fibreglass Roofing Ltd for more information or to see a Topseal installation near you.

Can a GRP flat roof be repaired easily?

Cotswold Fibreglass Roofing Ltd will install your Topseal GRP flat roof to a very high specification to ensure a long, reliable service life and resistance to the elements and normal wear and tear.

If the roof surface should be damaged by impact, or has to be cut for any reason, it can easily be repaired. Our proven repair procedures, combined with the same workmanship that went into the original roof, will ensure that the patch or joining piece will bond to the original laminate to form a durable weatherproof patch.

For more advice on this or to discuss a damage repair to an existing Topseal roof, please contact us.

Can you install a GRP flat roof at any time of year?

The answer to this is a qualified ‘yes’.

The Topseal GRP roofing system, as installed by Cotswold Fibreglass Roofing Ltd, is designed to protect flat roofs from the ingress of water over many decades. Because of this, it is essential that the components of the new roof are kept dry and that the GRP laminate is not laid in wet weather or when wet weather is forecast. Equally, it is important for certain temperatures to be present for the satisfactory curing of the GRP resins used on your new roof.

If the weather is suitable (our installation team has been trained to check and accurately interpret weather forecasts for this purpose), a Topseal roof can be installed at any time of year. In practice, spring, summer and autumn are likely to have better weather, more suited to a successful installation.

Our contracting team will always liaise with you to ensure that the installation date is convenient for you, and that the weather is suitable for the Topseal process.

Contact us for more information and your FREE no-obligation quotation.

What are the main stages of GRP flat roof installation?

Replacing a flat roof with a Topseal GRP roof can be divided into four main stages. For a straightforward job such as a domestic garage roof (area c. 20m2), Cotswold Fibreglass Roofing Ltd, your local Topseal Approved Installer, would expect a team of two people to complete the flat roof installation ( re-decking, lamination and topcoating) within one day.

Preparing and decking the roof

This stage of installing a flat roof involves removing the old roof (often a perished felt roof covering) down to the supporting timbers. The joists are then checked for condition and, if required, repaired. The roof is then redecked with high quality 18mm-thick tongue-and-groove OSB3 (oriented strand board).

Fixing the edge trims

The next stage in a GRP flat roof installation consists of fixing GRP edge trims to the edge of the roof. The positioning and configuration of these edge trims enables the Topseal GRP laminate to be formed to virtually any specification.

Laminating the roof

To install a new flat roof successfully requires attention to detail and expert craftsmanship at all stages. During the vital laminating stage, joints between decking, gutters, GRP trims and protrusions (such as rooflights) are carefully ‘bandaged’ before the entire roof is laminated with a layer of GRP.

Topcoating and finishing

To replace a flat roof properly involves ensuring a suitable aesthetic and performance finish. At this stage, the roof is topcoated with high performance pigmented polyester roofing resin and your choice of colour and finish.

The site is then cleared and, with the new flat roof installation complete, you can start enjoying your new Topseal GRP roof.
It really is that straightforward and the results are long lasting and durable. Contact us for more information and your FREE no-obligation quotation.

Is it easy to clean my GRP roof?

Each Topseal GRP roof installed by Cotswold Fibreglass Roofing Ltd is designed to be maintenance free and does not require regular cleaning. However, because of the versatility of the system, its suitability for applications such as roof terraces or walkways may mean that you will want to clean the surface from time to time.

Flat roof maintenance and cleaning made easy

Your Topseal GRP roof makes flat roof cleaning easy. The smooth surface, free of welds and seams, makes it easy to clean so routine flat roof maintenance can be carried out quickly and easily and without the risk of causing damage by water penetration into the fabric of the building.

A Topseal roof can be pressure washed

Normal dirt and debris can be removed with a hose and stiff brush. If a more powerful solution is required, your GRP roof can be pressure washed without any concern of causing damage to the surface or generating leaks (the manufacturer does, however, advise against the use of steam cleaning). Cleaning complex shapes such as skylights or around other detailing is also simple.

Contact us for more information and your FREE no-obligation quotation.

What is Topseal?

Cotswold Fibreglass Roofing Ltd is an approved installer for the Topseal GRP roofing system.

Topseal is a cold-applied, high performance, British Board of Agrément approved waterproofing system, manufactured by Topseal Systems Limited, which can be used to form a waterproof membrane regardless of the size or complexity of the application.

Guaranteed to perform well under the most extreme weather conditions

Topseal is available in two BBA-approved systems, both of which are guaranteed to perform  well under the most extreme weather conditions. Topseal is ideally suited to any area where water needs to be either contained or excluded. This makes it perfect for domestic applications such as these:

• Flat roofs
• Gutters and gutter linings
• Balconies
• Roof terraces and gardens
• Green roofs

The system can be finished in any BS4800 colour, and if required can be given a non-slip finish for use on balconies and walkways.

Only installed by trained and approved contractors

Topseal is only installed by Topseal-trained and approved contractors such as Cotswold Fibreglass Roofing and is covered by a minimum 20-year guarantee on both materials and workmanship. More than 30 years’ experience with domestic and commercial installations in the UK shows that Topseal combines high durability, low maintenance and versatility for a wide range of applications and under the most extreme weather conditions.

Benefits of Topseal GRP roofing

The benefits of Topseal include the following:

• Strength
• Durability
• No seams, welds or joints
• Will not bubble
• A wide choice of colours
• Suitable for walking or working on
• No maintenance required
• 25-year Guarantee and BBA approved

Performance and peace of mind for years to come

If your garage roof, porch, or other flat roof is in need of repair, Cotswold Fibreglass Roofing and Topseal will give you performance, good looks and peace of mind for years to come.

Contact us for more information and your FREE no-obligation quotation.

Can GRP be used for pitched roofs?

Though Topseal is most commonly used on flat roofs, it can be applied to a wide range of domestic structures including the following:

• Pitched roofs
• Gutters
• Balconies
• Terraces
• Roof furniture (casements and skylights)

Topseal can also be used for traditional pitched roofs

Topseal can also be incorporated into traditional pitched domestic roofs and can even be used to imitate lead or copper rolls. And if you are creating a pond or pool, Topseal can also be used to create a tough, attractive lining.

Topseal roofing resins are formulated to be environmentally friendly and withstand thermal expansion and contraction cycles on even the most complicated roof designs. With its increased tolerance to thermal expansion, Topseal will never crack or fail when installed correctly by a properly trained approved installer.

A perfect roof every time

Whatever your domestic roof challenge, Topseal and its related range of preformed edge trims is guaranteed to give a perfect roof every time. As a Cotswold Fibreglass Roofing customer, this gives you reassurance that your new roof will last well (even beyond its guaranteed life) and prove to be a sound investment.

How can a long-lasting GRP roof enhance or protect your property? Contact us for more information and your FREE no-obligation quotation.

What colours and surface finishes are available?

We believe that when you invest in a flat roof as special as Topseal, you should have plenty of choice of colours and finishes. That’s why Cotswold Fibreglass Roofing Ltd and Topseal give you the choice of many colours, two different surface finishes and two laminate weights.

Colours

As standard, Topseal is available in two shades of grey: Cool Grey and Dark Admiralty Grey. Your Topseal roof can also be specified in any colour from a wide selection of available colours (as well as being ordered in any BS4800 colour).

Surface finishes

Topseal can be specified with a smooth finish or an optional non-slip finish for areas that people will walk on. If required, tiles can also be laid on top of the Topseal roof.

Weight of laminate

For most applications (including where the roof will be walked on occasionally), Topseal 450g/m2 laminate is suitable. This is the standard weight for most applications.

If the roof will be subject to heavy pedestrian traffic (a walkway, balcony or roof terrace), a heavier 600g/m2 laminate will be specified. This is normally specified with an aggregate non-slip finish.

What colour and finish would you like? Contact us for your FREE no-obligation quotation.

Can my Topseal roof be used for roof gardens or green roofs?

Because a Topseal roof can be walked on, it’s ideal for the creation of roof gardens, terraces or even green roofs. The high durability and longevity of GRP, combined with the thoroughness and skill of our installation team,  makes it ideal for green roofs, ‘grass roofs’ or ‘sedum roofs’ with their intrinsic environmental qualities:

• Controlled storm water run off
• Increased heat and noise insulation
• An attractive natural habitat for insects and plants
• Reduced heat-island amelioration (the raised air temperature above built-up areas)
• Green roofs (including a garage green roof) act as heat shields
• Better aesthetics than an unplanted flat roof

Because your Topseal roof can be painted and textured, it’s easy to create a low-slip surface that’s ideal for a rooftop garden, a roof garden or if safe access to the roof will be required to maintain other parts of the property.

Even if you only create a small garage roof garden, it’s amazing how versatile, environmentally friendly and usable such a practical flat roof system can be. Not only does your Topseal roof save you money through durability and longevity, but you also have scope to make more use of it, and even help the environment.

Learn more about the benefits of a Topseal GRP flat roof for your roof garden or terrace – contact us for your FREE no-obligation quotation.

Does my existing flat roof have to be completely stripped?

The long-term durability of your new Topseal roof depends on attention to detail, quality workmanship and Cotswold Fibreglass Roofing Ltd’s thorough, methodical approach to the work.

Taking great care at all times

That’s why we’ll strip the old roof back to the original joists, check the condition of timbers, and then renew the roof decking with high quality (OSB3) tongue-and-groove oriented strand board. And of course, you can be sure we’ll take great care to keep the new decking dry before installing your new Topseal GRP roof.

If the existing roof suffers from poor drainage, we’ll also install timber fitting-pieces to the existing joists to give a suitable fall to the new deck.

Many installations are completed in one day

For many jobs, such as a standard garage, we’d expect to complete all the work in one day, thereby minimising on-site disruption to your life and enabling you to use your newly refurbished garage as soon as possible. We’ll take all the old roofing materials away and dispose of them for you, leaving your property as tidy as we found it.

Learn how easy it is to enjoy the benefits of a properly installed GRP flat roof – contact us for your FREE no-obligation quotation.

How much does GRP cost compared to other flat roofs?

Like many things in life, you get what you pay for with GRP flat roofs. Your new Topseal roof may not be the cheapest roofing (and it won’t start to deteriorate in a few years like cheap felt flat roofing either), but it’s certainly amongst the best performing.

GRP flat roofing is a great investment in your property

With installation by Cotswold Fibreglass Roofing’s  manufacturer-trained GRP flat roofing contractors and a 25-year manufacturer’s guarantee (backed by British Board of Agrément approval), an attractive, maintenance-free Topseal GRP flat roof makes a great investment and an attractive addition to any property with a flat roof.

Just look at the benefits of our GRP flat roofs:

• Strength (walk on it, work on it, build an environmental roof on it)
• Durability means you won’t be replacing this roof in a hurry
• No seams or joints means no ways for water to get in and do damage
• Bubble-free for long-lasting performance
• Choice of colours to match your property
• Maintenance free – spend your hard-earned cash on something more exciting

Cheap isn’t always best

With more than 1,000,000 m2 of Topseal already installed in the UK, there are already plenty of discerning homeowners who appreciate that cheap isn’t always best – and that the cost of a flat roof shouldn’t be the only thing you consider.
 
If your garage roof needs replacing, or that porch has turned into a leaking embarrassment, contact us to discover how reasonable the cost of Topseal flat roofing could prove over the next 30 years?

Is GRP a proven flat roofing technology?

When you’re planning to renew your garage or porch roof with our GRP flat roofing technology, it’s good to know that the strength and performance of GRP proves itself in other demanding environments whatever the weather, not least in the form of the GRP lifeboats operated by the RNLI. What’s good enough in Force 9 off the Welsh coast should be good enough for the flat roof of a domestic garage in Gloucestershire. That’s the secret of Topseal roofing installed by Cotswold Fibreglass Roofing Ltd.

50 years of proven flat roofing technology

In the UK, GRP has been used as a roofing technology for the best part of 50 years. In particular, developments in technology over the last 30 years have seen the evolution of specialist high-performance resins specifically designed for flat roofing.

GRP flat roofing technology started to gain popularity in the 1980s and has continued to win the hearts of roofers, architects and customers (some 80 per cent of GRP flat roofing is for domestic properties) due to its durability and advantages over traditional flat roofing technologies.

The smart choice if you want to ‘fit and forget’ your flat roofing

Proven performance, excellent value for money, long-life and versatility (textured, coloured and ‘green’ environmental finishes are all possible) make GRP flat roof technology the smart choice for anyone who wants to ‘fit and forget’ their roofing or add to the kerb appeal of a property before selling it.

Learn more about this proven technology – contact us for your FREE no-obligation GRP flat roofing quotation.

What is GRP roofing?

Topseal glass reinforced plastic roofing (GRP roofing) is a durable, attractive and proven roofing made from a high performance composite resin (the ‘plastic’) reinforced by chopped strand mat glass fibres ( the ‘glass’). Together, these form a tough, durable GRP laminate that forms a key part of the GRP flat roof.

A durable system without the problems of felt or other flat roofs

Our GRP roofs, which use the proven Topseal system, consist of a single-ply GRP laminate applied in situ over an 18mm OSB3 (oriented strand board) deck; the roof is finished with pre-formed GRP edge trims and a coat of pigmented topcoat. Textured and variously coloured roofs are easily achieved, as well as ‘green’ or ‘moss’ roofs. When laid by our trained, experienced roofing specialists, GRP flat roofing provides a weatherproof, durable system without any of the problems traditionally associated with felt or other flat roofs.

Our quality workmanship is ideally suited to GRP roofing

GRP fibreglass roofing has been used in the UK for nearly 50 years, with millions of square metres of roofing still doing sterling service. As well as quality materials from a reputable supplier, a key factor for long-term durability of GRP flat roof systems is the quality of workmanship. GRP roofing can fail if it is laid incorrectly, that’s why the performance of each roof is so dependent on the installer’s training and workmanship – and why Cotswold Fibreglass Roofing Ltd, with its strong background in quality workmanship, is perfectly suited to the installation of GRP flat roofing.

Contact us to learn more and book your FREE no-obligation GRP roofing quotation.

Why should I choose Cotswold Fibreglass Roofing for my new flat roof?

Three important reasons mean you should choose Cotswold Fibreglass Roofing Ltd for your flat roof build or repair.

A local business committed to the community

Cotswold Fibreglass Roofing is a locally based business with strong ties to the local Gloucestershire community and a determination to support the community with excellent work, integrity and good value – you know we’ll do a good job.

Your Topseal Approved Installer

Because we’re an Approved Topseal Installer, you can be sure of the highest possible standard for materials, workmanship and customer service when we work on your flat roof. Topseal Systems Ltd strictly controls the appointment of approved contractors for its established GRP roofing system. What’s more, it also backs the system (and the quality of its approved contractors) with British Board of Agrément (BBA) certification and solid guarantees.

Skilled craftspeople (not just another flat roofer)

Thirdly, Cotswold Fibreglass Roofing is more than just another flat roofing company. Our flat roofing business is based on years of expertise and achievement in the Gloucestershire building and property restoration sector. We do more than just fix flat roofs: when you hire us, you’re getting access to skilled joiners, builders and other tradespeople who take a pride in the quality of their workmanship and their customer service. When you're regularly recommended for work on half-million pound building and restoration contracts you have to be good – and reliable.

We apply the same standards to every job, from a listed building restoration to your leaking garage roof – and always at a competitive price.

How competitive? Contact us for more information and your FREE no-obligation quotation.