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.

Superior Performance Phenolic Insulation

SR/TB (MF)

Applications: Wall / Drylining

SR/TB (MF)

SR/TB-MF is a composite insulated panel of Xtratherm phenolic insulation core with a composite foil facing bonded to 12.5mm tapered edge plasterboard for internal walls, sloped roofs and ceilings. SR/TB-MF is only suitable for mechanically fixed applications.

The composite foil facing on both sides of SR/TB-MF incorporates an integral
vapour control layer, which helps to reduce the risk of condensation. SR/TB-MF is
designed to provide high levels of thermal insulation and drylining in one operation,
providing the solution of choice in newbuild and renovation.

U-Value calculations to EN ISO:6946
SR/TB-MF Insulation for Drylining Walls - Mechanically Fixed

Thickness (mm)

Wall Type50mm60mm70mm80mm90mm
300mm Clear Cavity Wall Brick/Block0.280.250.220.200.18
215mm Hollow Block (External Render)0.290.260.230.210.19
Cavity Wall Pumped Block & Block (Pumped Bead @ 0.033 W/mk)0.160.140.140.130.12

Product Downloads

Product Range

Safe-R is a superior performance phenolic insulation with an enhanced fire classification. It is faced with low emissivity foil facings on both sides and has a Lambda value as Low as 0.020 W/mK.

Key Points

  • Insulation and Drylining in One Application
  • Euroclass B fire classification
  • Provides Continuous Vapour Control Layer
  • Suitable for a variety of wall types
  • Reduced Insulation Thickness

Xtratherm reserves the right to change this information without notice.
Xtratherm accepts no responsibility for errors or omissions on the website.

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