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Overview
In highly sensitive environments such as hospitals, food processing and pharmaceutical facilities, it is sometimes necessary to use an odour free roof waterproofing system.
The BBA and ETA certified Triflex ProThan is the ideal solution as it utilises a solvent-free resin technology that is odour free during application. The cold liquid applied system does not require any hot works and can also be used internally within buildings without the requirement for additional ventilation.
Compatible with the majority of substrates and suitable for both new-build and refurbishment, the highly certified liquid roofing systems are the obvious choice for highly sensitive roof waterproofing.
Application Areas
- Highly odour sensitive environments
- Internal waterproofing
- Refurbishment
- New build
- Overlay of existing failed waterproofing systems
- Warm roofs (all insulation types)
- Inverted roofs
- Podium / plaza decks
- Buried membrane roofs
- Green roofs
- Brown roofs
- Blue roofs
- Bunds / storage tanks / silos / plant rooms
Compatible substrates
- Felt
- Asphalt
- Bitumen
- Single ply membranes (e.g. PVC, PVC-P, EPDM, EVA, TPO, FPO, TPE, CPE, PIB, VET etc.)
- Cementitious materials (concrete, brickwork, masonry)
- Metals and coated metals
- Plastics
- Coatings (e.g. polyurethane (PU), polyurea (PUA), polymethyl methacrylate (PMMA), etc)
- Solar reflective coatings
- Glass
- Timber
System highlights
Odour-free and solvent-free, making it ideal for sensitive environments such as hospitals, food processing and pharmaceutical facilities, as well as enclosed internal areas without additional ventilation.
Suitable for refurbishment and new-build, it can be applied over almost all roof substrates, including failed single-ply membranes, eliminating the cost, risk and disruption of removal.
All materials are applied as a cold liquid, eliminating the need for hot works and providing a safe, durable waterproofing solution built to last.
Installation time and costs are significantly reduced when compared to multi-coat, typically solvent based, single component polyurethane systems. The single coat application eliminates the risks of inter-layer adhesion issues.
The unique, highly flexible Triflex ProThan resin is used with a special high tensile strength polyester fleece to ensure that high levels of movement and cracking within the structure and between substrates can be accommodated. Proven fully reinforced waterproofing technology that stands the test of time.
The standard Triflex system is designed for foot traffic and provides exceptional puncture resistance when compared to many alternative materials.
Triflex ProThan offers a complete waterproofing solution that will last for years to come. The system is certified and tested to the highest UK and European standards and offers proven performance.
For every application the perfect solution
Select the appropriate variant for your project
Downloads
Product Information
Certification and approvals
Full system certified, tested and approved to the highest UK and European standards and classifications, including:
Certification
- BBA
- EAD 030350-00-0402
- UKTA
- FLL : Root and rhizome resistant
- EN 13948 : Resistant to root penetration
- EN 13583 : Hail resistant
Tested to
- EN 13501-5 : Class BROOF (t1), (t4)
- EN 13501-1 : Class E
- BS 476-3 : EXT.F.AA
Satisfies or contributes to satisfying
- NHBC Standards 2025
Environmental rating
- BRE / BREEAM rated
Heat resistant
- Tested for overlay at 250°C
Resin colour
Triflex ProThan is available in 7009 Green grey and 7016 Anthracite grey.
7009
Green grey
7016
Anthracite grey
Require an on-site survey or quote?
All installations are carried out by our network of Triflex Authorised Contracting Partners. If you have a project we can provide a free no obligation on-site survey and can put you in touch with local Triflex contractors in your area that will be able to provide you with a quote.
To organise your free on-site survey you can either complete our project enquiry form or contact your local Business Development Manager, who will be more than happy to discuss your requirements.
Triflex Authorised Contracting Partners can place orders by calling 01785 819119 or emailing orders@triflex.co.uk.
Frequently Asked Questions
Triflex ProThan® is a virtually odour‑free, solvent‑free polyurethane (PU) liquid‑applied roof waterproofing system designed specifically for use in highly sensitive environments, providing long‑term, fully reinforced roof protection.
Triflex ProThan is ideal for all roofs, but in particular hospitals, food processing facilities, pharmaceutical buildings, schools and other odour‑sensitive environments, where traditional roofing systems may cause disruption.
Yes. Triflex ProThan uses a solvent‑free PU resin that is virtually odour‑free during application, allowing roofing works to take place without affecting building occupants or operations.
Yes. Triflex ProThan is 100% cold liquid‑applied, eliminating the need for hot works and reducing fire risk, making it suitable for both external roofs and internal waterproofing areas such as plant rooms.
Triflex ProThan is suitable for flat roofs and complex roof details on both new‑build and refurbishment projects and is compatible with most existing roof substrates, including single‑ply membranes. With insulated warm roof options, thermal improvements can also be achieved.
Yes. Triflex ProThan incorporates a high‑tensile strength polyester fleece reinforcement, enabling the system to accommodate structural movement and cracking while maintaining waterproof integrity.