A GRP fibreglass roof is one of the most popular solutions in the UK. GRP or Glass Reinforced Polyester is a composite material that is produced when plastic is strengthened with fine glass fibres. This single ply laminate has a history spanning over 60 years as a reliable solution to cover and waterproof roofs. In recent years, the GRP fibreglass roof has increased in popularity and can be used for a variety of applications.
One of the main advantages of GRP fibreglass roofing system is that it provides a simple, safe installation. The process begins with the application of a layer of catalysed resin to completely dry, good quality roof decking. Then a fibreglass mating layer is laid over the top of it, followed by another catalysed resin layer to complete the system. Once this has cured, a top coat resin that is fire retardant is applied to weatherproof the roof completely and create a more attractive finish. The edges of the roof any abutments are fitted with trims.
When correctly installed and with sensible maintenance, a GRP flat roof can have a lifespan of over thirty years without any deterioration.
The essentials of a GRP fibreglass roof are GRP resin, fibreglass mating, top coat resin, and a catalyst or hardener. The installation will also require fibreglass flashing and roof trims, sealants, and adhesives to bond the flashings and trims. These materials are relatively inexpensive and can be supplemented with corners to enhance the roof aesthetics.
Providing the installation has been carried out properly with suitable decking and flashing, there should be little concern about repairs for your GRP fibreglass roof. GRP fibreglass is impact resistant, but if a hole or split does develop, another layer of GRP can be laid over the top of the roof, providing it is still structurally sound to ensure it remains watertight.
While GRP is unaffected by UV, you may notice that there is some fading. This will not affect anything internally, but only the aesthetic qualities of the roof. If you prefer, any colour loss can be treated with another top coat layer to restore the original glory of your roof.
If your GRP fibreglass roof does leak, this type of problem is not typically linked to the roofing material. It could be a result of a poor installation, so you’ll need to check that all trims and flashings are fitted correctly, as these are likely to be the source of the leak.
Although more costly on average, a GRP fibreglass roof can offer some advantages over other flat roof materials. It is more durable compared to traditional felt, and there are minimal seams to reduce the risk of water creep-age. The finishing top coat makes the whole roof resistant to practically all weather conditions. A GRP fibreglass roof is built to retain form and function in storms, frost, snow, excessive periods of sunshine and high winds. It is also fire resistant and has durability for footfall, making it ideal for roof terraces. If you’re still unsure whether a GRP fibreglass roof is the right choice for your project, you should speak to us. Our recommended professional technicians would be delighted to answer your queries and help guide you through the roofing options best suited to your project.
We had been trying for weeks to have a hole in our roof mended. We asked for a call back on the Thursday. They called us back within a few minutes and came and fixed our roof Saturday. Will definitely use them for any other roofing repairs
Great service from Alan and his team. Kept us informed throughout. Would rehighly recommend.
Very pleased with the new roof to our extension. Excellent communication - came out quickly to provide a quote - work done speedily and efficiently in very cold weather. Thank you.
Small job fixing ridge tiles. Good quality work, done promptly and at a fair price.
On my journey to find what is the issue with my roof Michael came recommended by another very high ranking professional who deemed its best to get some roof work done before I attempt to clean moss. I have nothing but kind words to describe Michael's professionalism, knowledge and skill. He has a very sharp eye and can pinpoint anything wrong with the roof and is incredibly honest and clear on what options we have on how to attempt to do the work. He provides an update every day on what is done and what is left and is incredibly clean and tidy when doing the work. He has so much compassion of the family situation and provides options for work to be done to suit the family budget. He has been so kind, knowledgeable, and honest with us that he has made something as devastating as roof works in 2 months of moving in, for a first time buyer, something manageable. He is always on time and has prioritised to do work even when the temperatures were below 0 just to make sure our roof wasn't leaking with the bad weather saving us a lot of potential damage. He is very trustworthy and I would recommend him and use him again if needed.
I contacted L&M roofing on Saturday, the problem with the damaged chimney, we met on Sunday, we agreed on the work, on Monday it was already done, before and after photos, efficiently and professionally. Thank you I'm waiting for the first heavy rain 🙂
We lost a tile overnight in the recent storms - gave him a ring when we noticed it (on a wet & windy Saturday) - he was here within the hour and job completed 10mins after arriving. He was almost too embarrassed to charge us - but we were happy to pay for his service (and obviously did). Great guy and a great job done. Highly recommended - and such a nice chap as well. We will definitely use him again.
I can't praise Steve and his team highly enough. Exemplary standard of workmanship, courteous, punctual, tidy, considerate and reasonably priced. The work (replacing soffits, fascias & guttering) was completed on time, on budget and to the highest standard. The site was thoroughly cleaned before they left. I would unreservedly recommend giving Steve the chance to quote for your job and am sure that you won't be sorry.
Very professional, Very happy with the end result. Would recommend 100%
Amazing from start to finish
Would recommend SDB building. Communications are always excellent, and the team deliver high quality works on the promised timescale.
Quick and efficient response to the major issue found when doing work, communications were excellent throughout the work, photos supplied of completed work which is very helpful. While not the cheapest or most expensive, work completed looks 5*, it was not rushed.
I needed some repairs to roof & drainpipes adjusting. Steve came as agreed, gave a competitive quote, was friendly & helpful offering good sound advice. His colleagues tidied up and seem to have resolved the problems. Thank you to him & his colleagues
Very helpful and thorough did a brilliant job and very friendly.. Would definitely use them again highly recommend
The work was delayed by weather but Steve kept me updated, and I was completely happy with end result
Prompt reply and dealt with problem immediately, and corrected problem which was left by original company! Thank you
Steve turned up as promised and the job was carried out quickly and efficiently. I would definitely use again!
Steve and the guys did a great job replacing the valley, installing an eaves tray and felt replacement on the chimney and chimney flaunching to name just a few of the repairs. High quality job - I can tell by the photos they undertook before and after. Reliable time keeping, they worked hard, kept tidy and above all the communication was excellent. I have used them several times before for different building jobs and they always provide a high level of service which is customer focused. Highly recommended.
Great team of guys who responded to our urgent repair needs. Steve was happy to talk us through the issues he could see and the options and costs of correcting them, before starting work, so there were no surprises. Work was completed on time and to a high standard.
Needed a Velux window removed from the roof and also some repairs. Team were professional, efficient and got the job done in a day. Will be using them again and would highly recommend if you need work done