Alreflex Ultratherm

Alreflex Ultratherm is our highest performing rigid board insulation. The boards are BBA certified and consist of PIR insulation board with Alreflex bubble foil insulation bonded to one face. The combination of PIR and Alreflex foil provides a very high performance insulation and cavity rain barrier and make it ideal for use in projects where construction depth or water ingress are of concern. Alreflex Ultratherm is suitable for used in cavity wall, metal frame and dry lining applications.

Available in 5mm thickness increments from 25mm Alreflex Ultratherm can be used to meet most U-value requirements. From general Part L 2021 and Section 6 2023 compliance to achieving extremely low U-values for Future Homes Standards or FEEs compliance.

With a BRE Green Guide A+ rating Alreflex Ultratherm has excellent environmental credentials. It has a Global Warming Potential of less than 5 and an Ozone Depletion Potential of Zero. No CFCs, HFCs or HCFCs are used in the production of Alreflex Ultratherm. Various board forms are available to suit applications.

Brochures

Alreflex Ultratherm Wall Brochure
Alreflex Ultratherm Part L Brochure

Installation Guides

Alreflex Ultratherm Cavity Wall

Technical Data Sheets

Alreflex Ultratherm Cavity Wall
Alreflex Ultratherm Dry Lining

Safety Data Sheets

Alreflex Ultratherm

Certifications

BBA – Alreflex Ultratherm Cavity Wall

Product Specifications

Density 30 kg/m3

Board Size 450mm x 1200mm / 1200mm x 2400mm

Thickness 25mm – 100mm (other sizes available on request)

Compressive Stress 120 kPa (@ 10% deformation)

Global Warming Potential Less than 5

Ozone Depletion Potential Zero

Foil emissivity 0.03

Resistance of (min) 20mm residual cavity 0.71m2∙K/W

Resistance of bubble/foil 0.10m2∙K/W

Thermal Conductivity of EPS (λ) 0.022 W/m∙K

BRE Green Guide Rating A+

BBA Certified Product

This product has third party certification from the British Board of Agreement.

Cavity Rainwater Barrier

When installed correctly this product acts as a cavity rainwater barrier, preventing water ingress.

Global Warming Potential less than 5

No harmful blowing agents (gasses) are used in the manufacture of this product.

High Performance Acoustic Product

For use where high levels of acoustic isolation are required.

Ozone Depletion Potential Zero

This product does not have a destructive effect on the ozone layer.

Part L solution

Solutions available to meet and exceed Approved Document Part L requirements.

Section 6 Solution

Solutions available to meet and exceed Technical Handbook Section 6 requirements.

Weather Lap

This product has a built in weather lap that can be used to prevent water ingress.

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Main Applicaitons

Cavity Wall Insulation 

Alreflex Ultratherm cavity boards are designed for use in masonry and framed structures. These boards incorporate our unique 50mm Alreflex foil lap along the bottom edge of the board. When weather lapped, these boards create a BBA certified cavity rain barrier which means that they are suitable for use in all exposure zones, and make it ideal for use in severe exposure areas.

Dry Lining Boards

Alreflex Ultratherm boards are an excellent dry lining solution for Part L and Section 6 2023 refurbishment projects. The bubble foil surface on the Alreflex Ultratherm boards can be sealed as an integral vapour barrier and the fixing method allows a service void to be utilised directly behind the plasterboard.

These square edge boards are quick and simple to install and as no wet trades are required there is no drying our time needed.