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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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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.
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 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.
Technical Support & Resources
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/UF
Applications: Floor / Solid & Suspended
SR/UF
Safe-R Under Floor SR/UF is a superior performance rigid phenolic insulation with low emissivity aluminium facings both sides and has a thermal conductivity as low as 0.020 W/mK, delivering excellent U-values in floors.
The floor in any building is an area of considerable downward heat loss when
not properly insulated. SR/UF will significantly improve the U-value of new
and existing floors. SR/UF is lightweight, easy to install and combines high
compressive strength with low thermal conductivity, providing a high
performance solution for floor insulation.
U-Value calculations to EN ISO:6946 for UK
SR/UF Insulation for Ground Supported Slab
| PA | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
|---|---|---|---|---|---|
| Thickness | |||||
| 50mm | 0.23 | 0.25 | 0.25 | 0.26 | 0.27 |
| 60mm | 0.21 | 0.22 | 0.23 | 0.23 | 0.24 |
| 75mm | 0.18 | 0.19 | 0.20 | 0.20 | 0.20 |
| 80mm | 0.18 | 0.18 | 0.19 | 0.19 | 0.19 |
| 100mm | 0.15 | 0.15 | 0.15 | 0.16 | 0.16 |
U-Value calculations to EN ISO:6946 for ROI
SR/UF Insulation for Ground Supported Slab
| PA | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
|---|---|---|---|---|---|
| Thickness | |||||
| 50mm | 0.26 | 0.27 | 0.27 | 0.28 | 0.28 |
| 60mm | 0.23 | 0.24 | 0.24 | 0.25 | 0.25 |
| 75mm | 0.20 | 0.20 | 0.21 | 0.21 | 0.21 |
| 80mm | 0.19 | 0.19 | 0.20 | 0.20 | 0.20 |
| 100mm | 0.15 | 0.16 | 0.16 | 0.16 | 0.16 |
U-Value calculations to EN ISO:6946 for UK
SR/UF Insulation for Beam & Block Suspended Floor
| PA | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
|---|---|---|---|---|---|
| Thickness | |||||
| 50mm | 0.26 | 0.27 | 0.27 | 0.28 | 0.28 |
| 60mm | 0.23 | 0.24 | 0.24 | 0.25 | 0.25 |
| 75mm | 0.20 | 0.20 | 0.21 | 0.21 | 0.21 |
| 80mm | 0.19 | 0.19 | 0.20 | 0.20 | 0.20 |
| 100mm | 0.15 | 0.16 | 0.16 | 0.16 | 0.16 |
| 120mm | 0.13 | 0.14 | 0.14 | 0.14 | 0.14 |
U-Value calculations to EN ISO:6946 for ROI
SR/UF Insulation for Suspended Hollow Core Floor
| PA | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
|---|---|---|---|---|---|
| Thickness | |||||
| 50mm | 0.25 | 0.26 | 0.27 | 0.27 | 0.27 |
| 60mm | 0.23 | 0.23 | 0.24 | 0.24 | 0.24 |
| 75mm | 0.20 | 0.20 | 0.20 | 0.20 | 0.21 |
| 80mm | 0.19 | 0.19 | 0.19 | 0.20 | 0.20 |
| 100mm | 0.15 | 0.16 | 0.16 | 0.16 | 0.16 |
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
- Reduced Insulation Thickness
- Suitable for Underfloor Heating
- Perimeter Strips for Robust Detailing
- Lower Lambda Values for improved U-values
Xtratherm reserves the right to change this information without notice.
Xtratherm accepts no responsibility for errors or omissions on the website.