Single ply membrane roofing systems are widely used in the UK for commercial, industrial, and increasingly residential flat roofs. Their popularity stems from their balance of performance, ease of installation, and affordability. But when it comes to choosing the right supplier, how do you know which UK manufacturer offers the best solution?
This guide compares the UK’s leading single ply membrane manufacturers based on quality, performance, customer service, and sustainability—giving contractors and property owners the insight needed to make the right choice.
What Is Single Ply Membrane & Why Is It Used in Roofing?
Single ply membranes are synthetic roofing materials applied in a single layer to waterproof flat or low-slope roofs. The most common types are:
- EPDM (rubber-based)
- TPO (thermoplastic polyolefin)
- PVC (polyvinyl chloride)
Why It’s Popular
- Lightweight and flexible
- UV and weather resistant
Easy to install and maintain - Durable—lifespans of 20–30 years
- Suitable for both refurbishment and new builds
Common Applications
- Warehouses and commercial units
- Schools and public buildings
- High-end residential projects
Single Ply Membranes vs Other Roofing Systems
When evaluating roofing options, it’s important to understand how single ply membranes compare to other common systems in terms of performance, cost, and installation.
| System | Cost | Durability | Installation | Maintenance | Typical Use |
| Single Ply Membrane | Medium | 20–30 years | Fast | Low | Commercial/Industrial |
| Bituminous Felt | Low | 10–20 years | Moderate | Medium | Domestic/Garages |
| GRP (Glass Reinforced) | High | 20–30 years | Labour-intensive | Low | Premium/Architectural |
| Liquid Roofing | Medium | 10–25 years | Fast | Medium | Complex shapes/repairs |
Ultimately, the best roofing system depends on the specific needs of the building, budget constraints, climate considerations, and long-term maintenance goals
Key Criteria for Evaluating Single Ply Membrane Manufacturers
Choosing the right manufacturer is just as critical as selecting the membrane type, as it directly impacts product quality, warranty support, and long-term roof performance.
To determine who delivers the best value, manufacturers are assessed on:
- Material Quality
- Range of Products
- Durability and Testing
- Sustainability Credentials
- Installer Support
- Certifications and Standards
- Warranty and Aftercare
- Customer and Installer Feedback
By considering these criteria, building owners and contractors can make informed decisions that ensure durability, compliance, and value in their roofing investments.
Leading UK Manufacturers in the Single Ply Market
Among the many players in the UK single ply membrane market, a few manufacturers consistently stand out for their quality and innovation. One notable standout is Alwitra, known for its premium membrane technology and unique aesthetic options.
| Manufacturer | Primary Membrane Types | Key Strengths | Key Strengths |
| Alwitra | EVA, EVALON® (PVC derivative) | Premium aesthetics, superior detailing options, long service life, innovative materials | Distributed via exclusive UK partners |
| Sika Sarnafil | PVC, TPO | Global reputation, sustainable systems, strong technical support | Welwyn Garden City, Hertfordshire |
| Bauder | PVC, TPO | Full roofing solutions, training and support, system integration | Ipswich, Suffolk |
| IKO Polymeric | TPO, PVC | UK-based production, reliable warranties, comprehensive product range | Clay Cross, Derbyshire |
| Protan UK | PVC | Cold-weather performance, refurbishment solutions, proven Nordic performance | Warrington, Cheshire |
Each of these manufacturers brings unique strengths to the market, offering a range of solutions to suit different project needs, design goals, and budget considerations.
Environmental and Sustainability Credentials
Sustainability is becoming a key differentiator in roofing specifications.
Alwitra
- EVALON® membranes are 100% recyclable, free from halogens and plasticizers.
- Supports green roof installations and rainwater harvesting.
- Certified under ISO 14001, aligning with environmental management standards.
Sika Sarnafil
- Cradle to Cradle Certified™ membranes for circular economy compatibility.
- Offers LEED documentation and long-life product durability.
IKO Polymeric
- UK-based production helps reduce transportation-related emissions.
- Holds BES 6001, ISO 14001, and features in the BRE Green Guide.
Bauder
- Provides integrated green roofing systems and low-VOC adhesives.
- Certified under ISO 14001 with available Environmental Product Declarations (EPDs).
Protan UK
- Conducts life cycle assessments to guide sustainable design.
- Offers ISO 14001 certification and detailed EPDs.
Renolit
- Offers cool roof membranes that improve energy efficiency.
- ISO 9001/14001 certified with ongoing sustainability initiatives.
While Alwitra stands out with its material innovation and ecological design, all listed manufacturers contribute meaningfully to sustainable construction through certifications, recyclability, and energy-efficient solutions.
Technical Support and Installer Guidance
Proper installation is crucial to performance. Top manufacturers provide:
- Training Courses (e.g. Sarnafil’s Roofing Academy)
- Approved Installer Networks
- On-Site Technical Support
- Detailed Design Resources
- BIM Models and Specification Tools
| Manufacturer | Installer Training | Site Support | Spec Tools | Online Resources |
| Alwitra | Yes | Yes | Yes | Moderate |
| Sika Sarnafil | Yes | Yes | Yes | Extensive |
| IKO | Yes | Yes | Yes | Strong |
| Bauder | Yes | Yes | Yes | Extensive |
| Protan | Yes | Yes | Yes | Moderate |
Independent Testing and Certifications
Certifications indicate proven performance in UK conditions.
Key Accreditations
- BBA (British Board of Agrément)
- CE / UKCA Marking
- FM Global Approval
- ISO 9001 & 14001
- ETAG/EN 13956 Compliance
All major UK manufacturers hold relevant certifications, but Alwitra distinguishes itself through its high-quality European standards and long-standing commitment to environmental and technical excellence.
What Roofers and Customers Say: Industry Feedback
Feedback from installers, specifiers, and building owners provides valuable insights into how these systems perform in the real world.
Installer Feedback
Feedback from roofing professionals offers real-world insight into how these systems perform during installation and beyond.
Alwitra
- “The detailing flexibility of EVALON® is a game-changer on complex builds.”
- “Alwitra gives us design freedom without compromising durability. It’s a premium option that pays off in the long run.”
- “Support from their UK distribution partner has been excellent, even on bespoke applications.”
Sika Sarnafil
- “Still the gold standard for large commercial jobs.”
- “Training and system backing are top-notch.”
IKO Polymeric
- “UK-made and easy to source—we use them for tight deadlines.”
- “Reliable performance, solid support.”
Bauder
- “Great for projects that need everything in one package—membrane, insulation, green roof.”
- “High quality, but pricing can be on the upper end.”
Protan UK
- “Stands up well in harsh weather—great for exposed or northern sites.”
- “Sustainable choice with decent design tools.”
SIG Design & Technology
- “Convenient access to multiple systems under one roof.”
- “Helpful for general contractors working across regions.”
Final Thoughts
There’s no one-size-fits-all answer, but here’s a breakdown by need:
- Best for Premium Detailing & Aesthetics: Alwitra
- Best for Global Recognition & Longevity: Sika Sarnafil
- Best for UK-Manufactured Solutions: IKO Polymeric
- Best for Sustainability & Cold Climate Durability: Protan UK
- Best for Full System Integration: Bauder
- Best for Broad Distribution & Installer Access: SIG Design & Technology
Always weigh performance, support, and environmental credentials against your project’s goals not just brand visibility.
