Supporting the creation of buildings which are as safe as they are functional and comfortable, ROCKWOOL has continued investing in product development and delivered a series of updates to its firestopping range, which make it easier for fire protection stakeholders to respond to developments in the market and achieve Building Regulation compliance.
Firestopping for rainscreen systems, simplified
To streamline specification and installation of firestopping solutions in rainscreen systems, new and improved ROCKWOOL SP Firestop OSCB provides two clear options which are proven to deliver up to 120 minutes’ fire integrity and insulation when tested to ASFP TGD-19.
Designed for use in conjunction with ROCKWOOL RAINSCREEN DUO SLAB*, SP Firestop OSCB is now available for cavity widths up to 600mm, inclusive of a 25mm open air space (OSCB 25), or cavities up to 425mm with a 44mm air space (OSCB 44). The variants are easily identifiable by their respective white and red weatherproof polythene wraps, and are simple to store, handle and install.
SP Firestop OSCB is constructed of an intumescent strip fixed to non-combustible stone wool insulation. When exposed to fire, the intumescent strip expands to prevent the passage of smoke and flames through the rainscreen cavity.
A dedicated solution for parapet walls and upstands
To help specifiers and contractors mitigate fire risk in the fifth façade, ROCKWOOL has expanded its flat roofing range with new HARDROCK UB34, a non-combustible upstand board specially designed for parapet walls and upstands on flat roofs.
ROCKWOOL HARDROCK UB34 is constructed of a 50mm slab of ROCKWOOL stone wool insulation bonded to a rigid 6mm fibre cement board, which means the system is impact and weather resistant. With the insulation component offering a thermal conductivity of 0.034 W/mK, it is a thermally efficient upstand insulation board that is also non-combustible in case of fire.
The product’s proven thermal performance insulates upstands to reduce thermal bridging, cutting down on overall heat loss from buildings to improve energy efficiency. HARDROCK UB34 is suitable for installation in the external walls of relevant buildings over 18m as it is rated Euroclass A2-s1, d0 as required by Building Regulation 7(2)**.
HARDROCK UB34 is compatible with a wide range of flat roof systems, including single-ply and inverted.
On top of these new and improved solutions, specifiers and contractors can also harness the benefits of stone wool insulation through the ROCKWOOL FIREPRO range. The FIREPRO range brings together a comprehensive suite of firestopping and passive fire protection products for all applications, including flat roofs and façades.
To help fire protection stakeholders save time when working with the FIREPRO range, the ROCKWOOL FIREPRO Resource Hub brings together product information, technical tools and resources which support specification.
For more information, go to www.rockwool.com/uk/FIREPRO
*SP Firestop OSCB is only compatible for use in conjunction with ROCKWOOL RAINSCREEN DUO SLAB.
**The ban on combustible cladding is applicable to relevant buildings over 18m as specified in Building Regulation 7 (2).