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Soffit Insulation

View our selection of premium soffit insulation solutions.

From the exceptional durability of Calostat Sandwich MW to the fire protection and thermal efficiency of Kemwell Soffit Liner, our top-quality products include Kingspan Kooltherm K110 Soffit Board, Knauf Insulation Rocksilk Soffit Linerboard, Promat TL Board, Rockwool Soffit Slab, and Unilin (Xtratherm) Safe-R SR/ST. View these top-quality soffit insulation products below for your residential, commercial and industrial applications.

rockwool full fill cavity batts party wall insulation sig

Calostat Sandwich MW

Calostat Sandwich MW offers exceptional durability, featuring a mechanically bonded CALOSTAT® Pure core sandwiched between mineral wool facings. Ideal for back-ventilated rainscreen cladding, underground parking lot ceilings, and enhancing technical building systems.

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Isover RD Party Wall Roll<br />

Kemwell Soffit Liner

Kemwell Soffit Liner is a thermal, fire and acoustic insulation liner board for concrete soffits, offering up to 4 hours of fire protection and superior thermal insulation. Its versatile facing options and A1 classification make it an ideal choice for commercial and industrial applications.

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Kingspan Kooltherm K118

Kingspan Kooltherm Soffit Board

Kingspan Kooltherm K110 Soffit Board offers premium thermal performance at 0.019 W/mK, simplifying thin soffit construction with quick and easy installation. For an enhanced finish, Kingspan Kooltherm K110 PLUS Soffit Board combines premium insulation with impact-resistant building board, maintaining a thermal conductivity of 0.019 W/mK for efficient thin soffit construction.

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Knauf Insulation Rocksilk Soffit Linerboard Standard<br />

Knauf Insulation Rocksilk Soffit Linerboard

Rocksilk Soffit Linerboard Standard, crafted from Rock Mineral Wool, offers superior insulation for structural soffits in applications like underground car parks. With a non-combustible Euroclass A1 rating and ECOSE® Technology, it’s the ideal choice for fire safety and sustainability. Rocksilk Soffit Linerboard Extra, featuring Rock Mineral Wool with a non-combustible facing board, excels in insulating structural soffits in semi-exposed environments, such as open-sided car parks.

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Knauf Insulation Rocksilk Soffit Linerboard Standard<br />

Promat TL Board

Promat TL Board offers a solution for achieving precise U-values under concrete floors, featuring calcium silicate bonded to phenolic insulation while prioritising eco-friendliness without CFCs or HCFCs for an enhanced BREEAM rating. Promat TLFR Board provides effective insulation under concrete floors with its calcium silicate board bonded to stone wool insulation, delivering optimal thermal performance and fire resistance for your project.


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Knauf Insulation Rocksilk Soffit Linerboard Standard<br />

Rockwool Soffit Slab

Rockwool Soffit Slab offers non-combustible insulation for concrete soffits, delivering up to 4 hours of fire protection along with thermal and acoustic benefits. For added durability and fire resistance, consider the Rockwool High-Impact Soffit Slab, a cost-effective solution designed for structural elements like concrete car park soffits.

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Knauf Insulation Rocksilk Soffit Linerboard Standard<br />

Unilin (Xtratherm) Safe-R

Unilin (Xtratherm) Safe-R SR/ST offers high-performance thermal and fire solutions for structural ceilings in commercial and residential buildings. It features low emissivity foil facings and is ideal for performance-oriented applications. For added convenience and aesthetics, consider Unilin (Xtratherm) Safe-R SR/STP, a phenolic insulation board adhesively bonded to a building panel. It offers thermal and fire performance with low-emissivity aluminium foil facings and allows for easy maintenance and the application of decorative finishes.

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Technical Building Solutions

Impartial product advice

Our specialist team will provide advice on energy saving construction products and guidance on building regulation compliance.

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