With more rigorous thermal regulations now in place across the UK, builders and tradespeople need products that help them achieve compliance with ease.
To help, Rockwool has expanded its non-combustible stone wool insulation range for builders and tradespeople by launching two new products – 150mm Thermal Insulation Cavity Slab 32 and 140mm Sound Insulation Slab.
Supporting Part L compliance
A key new addition is a new 150mm thickness of Thermal Insulation Cavity Slab 32, which can be used to meet the now increased thermal regulations such as Part L 2021 (England).
Developed using patented NyRock technology, Cavity Slab 32 has a 0.032 W/mK lambda rating, making it the lowest lambda stone wool currently available in the UK and Ireland.
Cavity Slab 32 helps installers achieve ‘continuity of insulation‘ – something that’s recommended in Approved Document L 2021 and is critical in limiting thermal bridging and heat loss.
Two big benefits of Cavity Slab 32 when it comes to installation are that the slabs can be friction-fitted without precise cutting, and independent research has shown that when two separate slabs of Rockwool insulation are tightly joined together, the gap between them closes, and the individual fibres knit together to form a continuous network of fibres containing trapped pockets of air.
In practice, this is crucial as an air gap as small as 6mm is enough to increase heat transfer by 158%³ of the design value, so achieving a continuous fit is fundamental to energy efficiency.
Cavity Slab 32 is also water-repellent and has a Euroclass A1 non-combustible reaction to fire classification – the highest classification available.
Multi-purpose solution
Alongside Cavity Slab 32, Rockwool has introduced a 140mm version of its popular Sound Insulation Slab, joining 50, 70, and 100mm thicknesses.
The new 140mm Sound Slab provides acoustic performance for internal floors, and with a 0.035 W/mK lambda, it can also be used as thermal insulation for external timber frame walls. With its multi-purpose application, 140mm Sound Slab helps remove the need for different products for different applications, helping to save time on sourcing and purchasing.
As with Cavity Slab 32, Sound Slab also has a Euroclass A1 non-combustible reaction to fire classification and a flexible edge for easy friction fitting.
More sustainable packaging
Alongside launching two new products, Rockwool will roll out new-look packaging across its Trade Range in 2024. The new Trade Range product packaging uses 30% recycled plastic and is 100% recyclable. It also features less ink with just two primary colours and a mostly transparent design that makes recycling easier.
The updated design also features new labels with clearer product data and QR codes linking to digital information so customers always have the latest information at their fingertips.
For more information, visit https://rockwool.link/pbtrade
