Full Fill Built-in Insulation System Continuous wall insulation system that delivers ultimate thermal performance with the added assurance of protection from wind driven rain.

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The Xi products have been developed to deliver the U-value requirements to meet Passive standards. It’s no longer just about U-values: how the system builds, how it interconnects at junctions and how it is witnessed and confirmed on site, are all equally important facets.

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Xtratherm offer an extensive range of technically enhanced rigid insulation products for commercial and industrial projects

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Tapered Roofing System
The XtraFall system provides a high performance precision solution to thermal insulation and water drainage on at roofs.

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The Xtratherm range of high performance insulation boards provides the ideal technically advanced solution for flat roof projects.

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PLATINUM SERVICE for Developers

PLATINUM SERVICE for Developers

Developers and their design and certifcation team can rely on the expertise and professional support of the whole Xtratherm Team - it is not just about buying insulation products.

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Full Fill Built-in Insulation System

Continuous wall insulation system that delivers ultimate thermal performance with the added assurance of protection from wind driven rain.

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High Performance rigid extruded polystryrene
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At Xtratherm Xi Academy we understand the importance of giving our customers the best technical advice. The Xi Academy is open to everyone from Builders and Architects to Secondary Education Pupils to learn about advanced building methods, insulation and sustainability.

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For Developers

Platinum Service for Developers

The Xi Platinum Service gives building professionals the highest level of support from design stage to delivery of real performance on site through the assurance of a validation process from calculation to installation.

Construction professionals can rely on the expertise and support of the Xtratherm team.
With only the Xi range of products you can access the Xi Platinum Service on projects where at least one other Xi product is used along with ​a Xi ​cavity wall system to achieve a U-value of <0.15W/m2K.

With Xtratherm collaborating as part of the project team the ​​validation process ​​assists you in ensuring your expectations are delivered.

The following products are part of the Xi range of products:

Xi products

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Building Fabric Performance beyond simple U-Values


The Benefits

  • Consultation Service
  • Certified U-value calculations/Condensation Risk Analysis
  • Off plan BER/SAP Calculation consultation service*
  • Fabric performance specifications
  • Pre Design Assessment of details and Y-value
  • Pre-Tender Xtratherm spec check
  • Up to 4 site visits by Xtratherm personnel
  • Prompt response - all project sizes
  • Toolbox Talks & Installation Training
  • Installation validation
  • Project specific warranty

*In association with project Energy Assessor

Request a callback

All the members of our technical team are individually BBA accredited to help you reach your low energy goals. Fill out your details below to request a call back: