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Winner Conservatory & Orangery Awards 2019, Best Solid Roof System

Stay warm in winter, cool in summer

Our award-winning solid roof system is designed for all year round comfort.

Award-winning solid tiled roof

The Prefix WARMroof® is our award-winning solid roof and is the most configurable and structurally robust, insulated and tiled roof in the UK. Thanks to our Prefix WARMroof® technology, our building control approved roof provides the highest levels of thermal efficiency.

  • Award-winning solid roof

  • First class thermal efficiency

  • Hybrid glass panel upgrades

  • Customisable design

Prefix WARMroof® System View

Take a closer look at how our unique Prefix WARMroof® system works.

WARMroof System View

All year round comfort

The Prefix WARMroof® is designed to keep you warm in winter and cool in summer for all year round comfort. Perfect for conservatory roof replacements and refurbishment projects or new extensions, the Prefix WARMroof® will give you a highly functional, comfortable everyday living space to relax or entertain in.

Customise your Prefix WARMroof®

Explore our range of stylish tile colours and textures. We have numerous tile options, including slate or concrete imitation tiles. Or you can choose a slate or tile to match the existing house as the Prefix WARMroof® is structurally tested & proven to cater for any option.

Enhancements & Upgrades

Design your new room to be as individual as you are. We offer a range of finishing touches and upgrades from the outside to the inside helping to create the perfect living space for you.


Prefix WARMroof® by name & design

Our Prefix WARMroof® system is the most configurable and structurally robust, insulated and tiled roof in the UK market. Suitable for a wide range of conservatory builds, replacements and refurbishment projects, our Prefix WARMroof® is the only true ‘warm roof’ construction design in the solid, tiled roofing sector.

  • The first true ‘warm roof’ construction
  • Fully insulated structure
  • Pre-fitted Velux rooflight
  • Insulated Eaves
  • Full length glass panel option
  • Quick & Easy to install, less disruption to your home
  • No on-site cutting required
  • Numerous slate & tile colours and options


Structurally tested for all roofs up to 6000mm wide. (Larger spans available with additional support)
Thermal insulation U-value of 0.18 W/m2K as standard
Double or triple glazing panel options
Able to incorporate large spans for bi-folding doors or sliding patio doors

Building Control Approved

Solid roof construction such as replacing an existing conservatory roof with our Prefix WARMroof® system will likely require building control certification. We have all the help you need to ensure your project can fulfil local authority requirements.

Find an Installer

We have a wide portfolio of trusted installers to connect you to someone in your area.

Become an Installer

Interested in joining our installer network and want to sell our products? Become one of our trusted installers today.

Interested in the Prefix WARMroof® for your home?

Contact us today to speak to a member of our team who can connect you with your local trusted installer or we can post you a copy of our new brochure.

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