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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PIR Insulation
High-performance, energy efficient, structural building system

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Vacuum Insulated
Panels (VIP)

Insulation System
for Flat Roofs & Balconies

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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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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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Xtratherm’s range of non-combustible, Euroclass ‘A1’ stonewool insulation provides surety when the highest fire performance is required. Stonewool Rainscreen insulation is suitable for use in ventilated facade, rainscreen and framing applications and closed systems such as curtain walling.


High Performance rigid extruded polystryrene


PIR Insulation
Xtratherm UniSIPS is the ideal product when considering structural insulation solutions for wall, floor and roof panels. Technically advanced and thermally efficient, the load bearing panels provide a lightweight and economical solution to facilitate modern methods of construction.


Insulation System for Flat Roofs & Balconies

XtraVIP Insulation System for Flat Roofs & Balconies is a rigid Vacuum Insulation Panel (VIP), consisting of a compressed, fumed, silica sand, microporous core which is evacuated of air and moisture before being
encased and sealed in a special thin, gas-tight, hybrid aluminium foil envelope. Encapsulated and protected within a robust two component elastomeric polyurea waterproof coating.


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 Online

To deliver continuous development for our customers Xtratherm have launched a new online learning system, providing self-directed modules and assessment on a wide range of topics.

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Xtratherm Technical & Specification Support Update

Support where and when you need us.

Xtratherm, like you, is responding and adapting to the evolving COVID-19 situation. The Health and Safety of our colleagues, business partners, customers, and our families remain the priority.

We want to share with you how we’ve updated our resources and technologies to support you in your own changing working situation to continue to provide the same service that you can rely on.

As we are all getting used to communicating online, particularly in the areas of technical and sales support, training and CPD delivery, we have met many more of you face-to-face for the first time; so that can only be a good thing.

The XI Academy offering is comprehensive, if you would like to discuss any matters, use our immediate callback service by clicking the button on the top of the page to talk to us, or we can arrange a one-to-one consultation with one of our experienced support team members.

As a leading thermal insulation manufacturer, with factories in Ireland and the UK, Xtratherm offers the construction industry a range of innovative complete solutions, encompassing roofs, walls and floors. By combining these innovative products you can meet your requirements, as well as reaching passive standards.

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CavityTherm logo

A continuous wall insulation system

CavityTherm provides a full range of innovative accessories forming a continuous ‘system’ that delivers unbeatable thermal bridging detailing.

A continuous wall insulation system

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Total Envelope Solutions

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

Flat Roof Solutions

Flat Roof Solutions

The ideal technically advanced solution for flat roof projects.

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XI Products Building Fabric Performance

The enhanced features of the Xi range deliver not only excellent U-values but enhanced thermal bridging detailing.

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XI Products Building Fabric Performance
A High Performance precision solution

Avoid water retention with XtraFall Tapered Roofing System.

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At Xtratherm we understand the importance of giving our customers the best technical advice. We have taken the unique industry step of training every one of our technical team that deals directly with our customers, to the highest industry standards of competency in U-value calculation and condensation risk analysis. We have Thermal Bridging covered also under the BRE/NSAI Thermal modelling competency scheme, using the most comprehensive 3D software available.

Expect more knowledge

Xtratherm Academy

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.

Xtratherm Technical Team

Our Technical Team provides technical services throughout our customer bases in UK & Ireland from our group headquarters in Navan, Co. Meath.

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Xtratherm Resources

Xtratherm has been at the forefront of supplying innovative resources in the form of calculation software and guides. All resources are backed by
our free telephone support, where your questions will be answered by competent BBA qualified technical advisors.

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  • Introducing The Xtratherm Innovation Centre

    Introducing The Xtratherm Innovation Centre

    The Xtratherm Innovation Centre has been developed to assist construction professionals in understanding the principles of specifying and achieving on-site, best practice insulation standards for new dwellings, commercial envelope solutions and refurbishment projects.

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  • New Build Housing

    New Build Housing

    New house section built towards FEES/NZEB
    standards showing best practice
    detailing to avoid thermal bridging.

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  • Refurbishment


    Section of solid wall housing illustrating
    upgrading of walls/floors and ceilings
    on older houses.

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  • Building Envelope Solutions

    Building Envelope Solutions

    Commercial section illustrating flat
    roofing, rainscreen and cladding.

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  • Work Site Training Area

    Work Site Training Area

    Wet area’ used to teach best
    practice installation technique
    to site personnel.

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  • CPD Theatre

    CPD Theatre

    A state-of-the-art theatre/meeting area
    for CPD presentations and training for
    groups of up to 50 people.

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Latest News

Covid – 19 Risk Assessment

21st May 2020

In line with Xtratherm’s Zero Harm Company policy and as part of managing the health and safety of our business, employees and visitors, we have taken steps to control risks […]

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Covid-19 Company Update

31st March 2020

At Xtratherm, the Health and Safety of our employees, business partners, and families is our priority. We are following all current Government direction and advice while monitoring the evolving situation. […]

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Are you NZEB ready?

26th June 2019

If you’re planning to build, it’s important to be aware of new building standards coming into effect in 2020. What are Nearly Zero Energy Buildings? Nearly Zero Energy Buildings are […]

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More than insulation

Xtratherm has a long established and proven manufacturing heritage. All our products are manufactured to the highest international standards, and we have led the industry in developing advances in technologies.

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Request a Call Back

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: