Is Roof Rubber the Best Choice for Your Sussex Property?
When I visit properties in Brighton, Hove, or Worthing to assess a flat roof, homeowners often ask me about ‘roof rubber’ (EPDM). It is a popular material because it is relatively quick to install and comes in single sheets. However, after years of installing and repairing roofs across Sussex, I have found that while roof rubber has its benefits, it often falls short of the durability provided by high-performance bitumen systems like Tecnatorch SBS Torch-On Mineral felt.
In our coastal environment, a roof needs to withstand more than just rain; it faces high UV exposure and significant wind uplift. My priority is always to provide a solution that lasts decades, not just years, which is why I want to explain why I typically recommend SBS systems over standard roof rubber.
The Vulnerabilities of EPDM Roof Rubber
Roof rubber is essentially a single-ply membrane. While it is flexible, its primary weakness lies in its seams and the way it is bonded to the structure. In my experience, most EPDM failures I see are not in the centre of the sheet, but at the edges and joins. If the adhesive fails due to the salt-heavy air in Brighton, the entire system can become compromised.
Furthermore, EPDM is quite thin—usually only 1.2mm to 1.5mm. It is susceptible to mechanical damage; a dropped tool or even a sharp bird beak can cause a puncture that leads to an immediate leak. Because it is a single layer, there is no ‘backup’ protection if that membrane is breached.
Why I Prefer Tecnatorch SBS Torch-On Systems
For a standard flat roof repair or replacement, I prefer using the Tecnatorch SBS system. Unlike a single sheet of roof rubber, this is a multi-layer approach. It consists of a reinforced base layer and a thick, mineral-surfaced top layer. Here is why this outperforms rubber in the Sussex climate:
- Puncture Resistance: The combined thickness of a torch-on system is significantly greater than EPDM, making it much harder to damage.
- Superior Adhesion: Because the bitumen is melted directly onto the substrate, it creates a permanent, fused bond that is far more resistant to wind uplift than cold-applied rubber adhesives.
- UV Protection: The mineral slate finish on Tecnatorch provides a natural shield against the sun, preventing the material from becoming brittle over time.
- Redundancy: With multiple layers, even if the top surface is slightly damaged, the underlay provides a secondary waterproof barrier.
Suitability for Extensions and Dormers
If you are considering a rear extension roof, the choice of material is even more critical. Extensions are often used as living spaces, kitchens, or home offices where a leak can cause thousands of pounds in internal damage. I find that the robust nature of SBS felt provides my clients with much greater peace of mind than a single-ply rubber membrane.
My process ensures that every detail, from the firewall transitions to the gutter drips, is handled with precision. I personally manage every installation to ensure the torch-on application is flawless, creating a monolithic waterproof envelope that roof rubber simply cannot match for longevity.
Conclusion: Making the Right Investment
While roof rubber might seem like a modern, simple solution, the technical reality is that a high-performance SBS torch-on system like Tecnatorch offers superior protection for the specific challenges we face in Sussex. It is a heavier-duty, more resilient material that handles our coastal weather with ease.
I believe in complete transparency when it comes to costs. You do not have to wait for a site visit to get an idea of the investment required. I have developed an online calculator on my website where you can calculate the price for your roofing project yourself in just 30 seconds. Once you have your estimate, I would be happy to visit your property, provide a fixed quote, and discuss why a reinforced bitumen system is the right choice for your home.