Triflex ProTerra Insulated

A high performance PMMA system for insulated build-up of trafficked walkways, balconies and terraces
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Driven by the increasing demands of Part L of the Building Regulations to reduce heat loss and improve energy efficiency in areas that are over occupied spaces, it is sometimes necessary to choose a balcony, walkway or terrace waterproofing membrane and surfacing system that not only provides reliable protection and attractive design but also offers increased thermal performance.

Triflex ProTerra Insulated is the ideal solution, featuring high quality warm roof insulation, an impact resistant topping and a durable and decorative waterproofing and surfacing layer. All elements of the system are ultra fast curing and cold liquid applied, allowing installation to be completed quickly, without the use of hot works, and with minimal impact on users. Triflex ProTerra Insulated is available in four unique surface finishes allowing you to completely tailor the colour, texture and finish of your project.

System highlights

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One stop shop

With Triflex you get the complete, one-stop solution. Featuring a high performance warm roof insulation, a thin section, lightweight, impact and water resistant topping and the market leading Triflex ProTerra waterproofing membrane and surfacing system. Threshold height requirements are minimised as the build-up above the insulation is much thinner than traditional construction.

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Maximum thermal performance

Our proven, high quality system offers a cost effective solution that ensures the requirements of Part L of the Building Regulations are exceeded. Maximising insulation values, reducing heat loss and increasing energy efficiency is simple to achieve.

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Cold applied system

There is no risk from hot works during installation as all our materials are applied in a totally cold liquid form, curing to create a solution that lasts.

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Fast curing with rapid installation

Rapid curing and easy to install, Triflex allows buildings to remain occupied during installation, limiting access restrictions and unnecessary disruptions to everyday life.

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Tough and durable protection

The demands of the walkway, balcony and terrace environment are no issue for Triflex ProTerra Insulated. The system is unaffected by ponding water and resistant to chlorides (salts), carbon dioxide ingress, and approved de-icing and cleaning products. Protection that's built to last, with a low lifecycle cost.

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Safety and environmental

Our solvent and isocyanate free resin technology has been assessed under BREEAM principles and can contribute to A+ ratings.

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Versatile design

Available in four surface finishes, choose the perfect colour, texture and finish for your project - refer to Triflex colour card.

ProTerra Insulated

Application areas

  • External walkways, balconies, terraces, pedestrian bridges and other pedestrian trafficked areas over occupied premises

Compatible substrates

  • Asphalt and polymer modified asphalt
  • Concrete, concrete repair materials and screeds
  • Existing membranes
  • Steel
  • Structural plastics
  • Timber

Suitable constructions

  • Cast in situ concrete
  • Permanent formwork with in situ concrete
  • Precast concrete planks with or without structural topping
  • Precast double tee units with or without structural topping
  • Steel / galvanised steel / structural plastic / timber constructions

System build-up

Triflex ProTerra Insulated

Featuring high quality warm roof insulation, an impact resistant topping and a durable and decorative waterproofing and surfacing layer.
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Triflex ProTerra and Triflex ProTerra colour card

Finish colours

Triflex ProTerra Insulated is available with a wide range of finish options including Quartz Design, Colour Design, Chips Design and Stone Design and over 50 finish colours. The system can be tailored to meet aesthetic and project needs with special colours being produced to order.

For full details on the range of colours and finish options download the Triflex ProTerra Insulated colour card below.

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

Project enquiry

Creative Design

Create your very own personalised design for your balcony or terrace with Triflex Creative Design! At the heart of the system is a sheet which is affixed to the prepared floor and coloured. The sheet is then removed to reveal your surface design. From the classic tile pattern in various formats through to company and club logos or names.

Triflex Creative Design can be combined with classic finish colours, Triflex MicroChips and also Triflex Colour Design, so you have a multitude of creative options for coating your balcony floor.

Creative Design
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Fully certified to the highest UK and European standards and classifications, including:

BBA certified (Triflex ProTerra reinforced waterproofing membrane)

  • Durability: Under normal service conditions the system will have a service life of at least 15 years

ETAG 005 certified (Triflex ProTerra reinforced waterproofing membrane)

  • 25 year expected working life

Fire performance:

  • EN ISO-11925-2
  • EN ISO-9239-1
  • EN 13501-1

Root and rhizome resistant (Triflex ProTerra reinforced waterproofing membrane):

  • FLL Certified: Root and rhizome resistant

NHBC accepted

Manufacturer certification

  • ISO 9001 Quality Management
  • ISO 14001 Environmental Management
  • ISO 50001 Energy Management


Take a look at Triflex in action

Looking for support?

Delivering solutions together, that's our motto. If you require any support, have an upcoming project or just a general enquiry then please don't hesitate to get in touch, we're always happy to help.