Celotex launches laminated insulation boards

Celotex has announced the release of SL4000 insulation boards for exposed and semi-exposed applications, such as concrete soffit floors.

SL4000 boards combine a lambda of 0.022 W/mK, Class O fire performance and an A rating for the BRE Green Guide 2008, and features a laminate of calcium silicate.

Drawing on the technology of Celotex FR4000 insulation boards, SL4000 is suitable for application under any soffit that divides heated and unheated areas.

As well as offering high level of thermal efficiency, the calcium silicate laminate provides impact resistance, additional fire performance and speed of installation.

Underneath the hardwearing laminate is a PIR foam, providing thermal efficiency of 0.022 W/mK.

The integrated product achieves low U-values with minimum levels of thickness, providing reliable long term energy savings for buildings.

SL4000 comes in a range of thicknesses from 50mm to 120mm with an additional 6mm for calcium silicate, and is available in a standard board size of 1,200x2,400mm.

It offers uniform thermal and fire performance throughout the product for ease of specification.

Unlike phenolic and fibre insulation it does not retain moisture, reducing the risk of damp and ensuring its performance in all conditions.

SL4000 boards are lightweight compared to other products, are non-corrosive and non-friable.

Easy to install, the boards are mechanically fixed to the concrete soffit, requiring no decoration once in place.

Celotex SL4000 is partnered by the unlaminated FR4000, for pitched roof, floor and wall applications and CG4000 for partial fill cavity walls.

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