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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PLATINUM SERVICE for Self Builders

PLATINUM SERVICE for Self Builders

Our Platinum Service offers full technical support and advice, helping you to achieve a cost effective, passive standard new home.

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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

Xtratherm offers a cost effective solution for builders and specifiers for the closing of cavities around window and door openings, preventing cold bridging, damp penetration, air infiltration and condensation.

CavityTherm Accessories

Xi Academy Logo

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.

High Performance PIR Insulation

FR/TP

Applications: Roof / Flat

FR/TP

Xtratherm FR/TP Thermal Ply is a composite insulated panel of Xtratherm Polyisocyanurate core with a composite foil face, bonded to 6mm WBP grade plywood. FR/TP is designed to provide high levels of thermal insulation and decking in one operation for new and refurbishment flat roof applications.

Typical U-Values

FR/TP Over Timber Deck
FR/TP (mm)U-Value (W/m2K)
56mm0.33
76mm0.25
86mm0.23
96mm0.21
106mm0.19
116mm0.18

Product Downloads

Product Range

Xtratherm Thin-R range is a high performance foil faced Polyisocyanurate (PIR) insulation with a certified thermal conductivity as Low as 0.022 W/mK. Thin-R is also available with engineered jointing to provide improved continuity and thermal bridging performance.

Key Points

  • Insulation & decking in one fix
  • For new & refurbishment roofs
  • Rapid weather proofing

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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