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

Developers and their design and certification 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

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

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Interactive Learning
For Better Building.

The Xi Academy is a hands-on resource to assist learning about best practice building methods, insulation and sustainability, utilising both online and face-to-face training.

Live Webinars

CPDs

Remote Support

Xi Innovation Centre

Publications

Teachers Resources

Videos

Gallery

U-Valuate

Y-Value Calculator

Xi Online Learning

Access Online Modules and Assessment

xionlinelearning.ie

PIR Insulation

CT/PIR Flex

Built-in Full Fill Wall

Applications:Wall / Full

CT/PIR Flex

CavityTherm Flex is the perfect solution when insulating fair faced inner block walls or when block is laid flat resulting in an uneven surface to accept the insulation. The 20mm flexible fleece layer absorbs any variations due to block tolerances, providing a continuous unbroken bond between insulation layer and block. Passive level U-Values as low as 0.14 W/m²K with excellent thermal bridging detailing in cavities less than 150mm wide.

CavityTherm Flex (Inner block 215)

Block Type	125mm	150mm
Light 0.15	0.14	0.12
Med 0.33	0.16	0.14
Dense 1.15	0.17	0.14

CavityTherm Flex (Inner Block 100)

Block Type	125mm	150mm
Light 0.15	0.15	0.13
Med 0.33	0.17	0.14
Dense 1.15	0.17	0.14

Property & Units


Water Vapour Resistivity	>100 (MNs/gm)
Thermal Conductivity	0.021 (W/mK)
Service Temperature	-20 to +100 (°C)

CavityTherm Flex


Length (mm)	1200
Width	450
Thickness (mm)	125	150
Typical R-Value *	5.50	6.70
*PIR+Flexible Fleece

Product Downloads

Product Range

CavityTherm provides a ‘system’ that delivers on U-values, is practical, and with a full range of innovative detailing accessories – it delivers on continuity.

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Key Points

Engineered HIPs facer provides wind driven rain protection
Moisture redirected to outer surface
Flexible backing to eliminate indentations
Prepositioned slots for sloping wall ties
Fully engineered jointing
Full range of accessory pieces build continuous system
Excellent Thermal Bridging Values

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

Do you have any questions?

Talk to the team who can help you with your project

Our Technical Team provides technical services throughout our customer bases in Ireland & UK. Their experience and expertise has been built through our engagement and participation with the Irish construction industry for over 30 years.

Certified Technical Knowledge.

Solutions you can trust.

Call The Technical Team:
Tel +44 (0) 371 222 1055
Tel +353 (0) 46 906 6050