Roofing insulation is a key component of the building envelope, helping to improve thermal efficiency, reduce heat loss and support compliance with the energy performance requirements of Approved Document L. Available in a range of material types, thicknesses and performance grades, insulation can be incorporated into warm roof, inverted roof and hybrid roof constructions.
Working alongside our technical team, we can advise on the most appropriate insulation specification to achieve the required U-value and meet your project’s specific performance requirements.
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PIR rigid insulation boards deliver high thermal efficiency with minimal thickness due to one of the lowest thermal conductivities (lambda) values available. Designed for use within warm roof build-ups, the boards are available with a variety of facing options compatible with torch-applied, adhered and mechanically fixed waterproofing systems.
Stone wool insulation boards provide thermal and acoustic performance while offering non-combustible fire performance, with products achieving Euroclass A1 or Euroclass A2-s1,d0 classifications depending on type. Designed for use within warm roof build-ups, the boards are available in both single and dual density grades, with faced and unfaced options to suit the selected waterproofing application method.
XPS insulation boards feature a closed-cell structure that delivers low water absorption and high compressive strength. Designed for use in inverted roof build-ups, the boards are loose-laid above the waterproofing membrane and held in place by the designated overburden.
XPS Plus insulation boards feature a closed-cell structure and manufacturing process to deliver an improved thermal conductivity (lambda) value over standard grade while maintaining high compressive strength and low water absorption. Designed for use in inverted roof build-ups, the boards are loose-laid above the waterproofing membrane and held in place by the designated overburden.
Cellular glass insulation boards combine effective thermal insulation with high load-bearing capacity. Unfaced products achieve Euroclass A1 classification, while faced options are available to facilitate the application of the waterproofing system in warm roof constructions. Product is also available with an inorganic coating for use in inverted roof applications.
VIP insulation boards consist of a microporous core encapsulated within a gas-tight, evacuated envelope. They achieve significantly lower thermal conductivity compared with conventional insulation materials, making them ideal for roof applications where build-up height is limited or enhanced thermal performance is required.
Designed to provide effective thermal performance while creating positive drainage falls towards roof outlets. Suitable for warm roof applications, boards are available in PIR, Mineral Wool, and Cellular Glass. Each system is tailored to the specific roof layout and drainage requirements of the project.
Designed to minimise thermal bridging at roof perimeters, parapets, and other raised details within inverted roof systems. Available in both Mineral Wool and XPS, each board is supplied with a factory laminated non-combustible 6mm high-impact facing board. Overall height, reaction to fire, and aesthetic finish should be considered when selecting these products.
