At Pyramid Eco, we choose roofing systems that deliver safety, compliance, and lasting value. We are replacing torch-on felt for flat roof insulation with single-ply membrane as our standard approach.
This upgrade removes the need for open flames, offers superior durability, and provides a fully sealed, weather-resistant finish. In this article, we explain why we made the change, how single-ply outperforms torch-on felt, and what it means for your property.
What Is Torch-on Felt Roofing?
Torch-on felt is a flat roofing method that uses layers of bitumen-based sheets bonded to a roof deck with heat from a blowtorch or strong adhesive. It creates a waterproof barrier and is often chosen for its low upfront cost and relatively quick installation in dry conditions.
While effective in the short term, it carries fire risks during installation, has a shorter lifespan than modern alternatives, and requires more frequent maintenance.
Torch-on Felt vs Single-Ply Membrane: Why Pyramid Eco Made the Switch
Single-ply brings modern safety and durability to flat roof insulation. Here’s why we replaced torch-on felt and how this upgrade adds value to your property.
1. Fire Safety and Risk Management
Torch-on felt is installed with open flames, creating a serious fire risk, especially in retrofits with timber or insulation. Many industry incidents in recent years show how quickly this can become dangerous and costly.
Single-ply membranes use hot air welding instead of flames, making them much safer for installers and buildings. This approach also meets PAS 2030/2035 safety standards and is increasingly preferred by insurers.
2. Lifespan and Durability
Felt roofs usually last 5 to 10 years before UV damage, cracks, or leaks appear and often need repairs.
Single-ply membranes can last 20 to 30 years or more. They resist UV damage, have a fully sealed finish with fewer seams, and greatly reduce leak risks. Many come with warranties of 20 years or longer for added peace of mind.
3. Weatherproofing and Maintenance
Single-ply membranes form a watertight barrier with few joints, making leaks less likely. They resist moss and algae, so they need less upkeep over time.
For homes that collect rainwater, they also provide clean run-off without the bitumen contamination that can occur with felt roofs.
4. Installation Quality and Compliance
At Pyramid Eco, our teams are fully trained in PAS-compliant single-ply installation. This process is safer, cleaner, and more flexible than torch-on felt, as it can be carried out in a wider range of weather conditions.
There are no tar pots, no hot works permits, and minimal disruption for residents. The result is a roof that’s safer to install and meets the highest industry performance standards.
5. Design Flexibility and Aesthetics
Single-ply membranes are practical and can improve a property’s appearance. They work on flat or pitched roofs and can mimic the look of zinc roofing at a lower cost. They also pair well with sustainable features like solar panels and green roofs, making them a versatile option for future-ready homes.
Related: Why Pyramid Eco Is Saying Goodbye to EPS Insulation
Pyramid Eco’s Single-Ply Flat Roof Standard
From now on, all Pyramid Eco flat roof insulation projects will be specified with single-ply membranes as standard. Each system will be integrated with high-performance insulation boards, vapour control layers, and edge detailing to meet Building Regulations and PAS standards while avoiding thermal bridging.
This ensures every project we deliver achieves the right balance of safety, performance, and long-term value.
Your Partner in Safe, Future-Proof Roofing
Pyramid Eco works with homeowners, landlords, and local authorities to deliver safer, longer-lasting single-ply roofing solutions. Our approach combines modern installation techniques, high-performance materials, and full PAS compliance, so you can be confident in safety and quality.
We minimise disruption, maximise durability, and keep your project on track from start to finish. Book a free consultation now and start your upgrade with a trusted partner in sustainable roofing.
