At Collective Roofing Services, we handle a wide variety of roofing projects, from pitched tile roofs to flat roof installations. This case study focuses on a flat roof replacement we recently completed for a property in Beckenham. It highlights the challenges of working with ageing flat roofs and shows how our team delivers durable, long-lasting solutions.
Background
The property was a detached house with a single-storey extension at the rear. The extension was built in the 1980s and used a traditional felt flat roof. Over time, the roof had deteriorated, and the owners noticed damp patches forming in the ceiling below. The felt had cracked in several areas, and pooling water after rainfall was making the problem worse.
The homeowners contacted Collective Roofing Services after searching for a local, reliable roofing company with expertise in flat roof repairs and replacements. After explaining their concerns, we arranged a site visit to carry out a full inspection.
The Initial Inspection
During the survey, our team found the existing felt roof to be in very poor condition. The surface had multiple cracks and blisters, and the joints between sections were beginning to separate. This was allowing water to seep through and cause damage to the roof deck below.
We explained to the owners that while small patch repairs were possible, they would only provide a temporary fix. The best long-term solution was to fully replace the roof with a modern fibreglass system. This would offer much better durability, improve drainage, and give the extension a fresh, clean appearance.
Planning and Quotation
We provided a detailed written quotation outlining the work required. This included:
- Removal of the old felt covering and any damaged sections of roof decking
- Installation of new, treated plywood decking where needed
- Application of a high-performance fibreglass (GRP) roofing system
- Creation of proper drainage falls to reduce pooling water
- Addition of new edge trims for a neat, weatherproof finish
The homeowners were impressed with the clear explanation of our process and the reassurance that the new roof would come with a guarantee. They agreed to proceed with the replacement.
The Project Execution
Our team began work the following week. Scaffolding and safety equipment were set up to ensure safe access to the roof area. The old felt was carefully stripped away, and we inspected the underlying deck. Several small sections of plywood had suffered from water damage, so these were replaced with new treated boards to provide a strong base.
Once the decking was prepared, we installed the fibreglass roofing system. This involved applying resin and matting in layers, creating a seamless surface that is completely watertight. Fibreglass is highly resistant to cracking and UV damage, making it an excellent choice for flat roofs that need to withstand the elements for many years.
We also improved the roof’s drainage by building in slight falls, ensuring rainwater would run off easily into the guttering system rather than sitting on the surface. Finally, new edge trims were fitted, giving the roof a clean, professional appearance.
Challenges Faced
One of the main challenges with this project was the limited access to the rear extension. Materials had to be carefully carried through the side of the property, and we made sure protective coverings were placed down to avoid damage to the homeowners’ flooring and garden. Careful planning and good communication with the clients allowed us to overcome these difficulties smoothly.
Outcome
The flat roof replacement was completed in just four days, well within the agreed timescale. The new fibreglass system gave the extension a modern look while providing a strong, waterproof covering that will last for decades with minimal maintenance.
The improved drainage ensured there was no more standing water, and the interior of the extension was now fully protected against future leaks. The homeowners were particularly pleased with the guarantee provided, giving them confidence in the longevity of their new roof.
Customer Feedback
The property owners were delighted with the finished result and commented on how professional and courteous the team had been throughout the project. They appreciated that the site was kept tidy at all times and that the disruption to their daily routine was kept to a minimum.
One of the clients said:
“We had been struggling with leaks for years and were worried about the cost of constant repairs. Collective Roofing Services gave us a clear plan and explained why a replacement was the best option. The new fibreglass roof looks fantastic and we finally have peace of mind that our extension is properly protected.”
Conclusion
This Beckenham case study shows how important it is to deal with flat roof problems promptly before they lead to further structural damage. By replacing the old felt system with a fibreglass roof, we provided the homeowners with a durable, low-maintenance solution that will serve them well for years to come.
At Collective Roofing Services, we bring the same level of dedication and care to every project, whether it’s a small repair, a complete roof replacement, or specialist work like chimney repairs and skylight installations. If you have concerns about your flat roof, we’re here to offer professional advice and a free, no-obligation quote.
