FirePro® SP FireStop OSCB
7Pages

Technical datasheet SP FireStop OSCB Version 2.02 April 2023 FirePro SP FireStop OSCB ® Open-state cavity barrier for use exclusively with both RainScreen® Duo Slab and NyRock® RainScreen 032 Exclusively designed and tested for use only in conjunction with ROCKWOOL RainScreen Duo Slab and NyRock RainScreen 032, SP FireStop OSCB forms an open-state cavity barrier within the building facade, which allows for ventilation and drainage of the cavity under service conditions. The product comprises of a continuous intumescent strip fixed to the leading edge of a foil faced stone wool barrier, encapsulated by a weather-resistant polythene sleeve. Tested to ASFP TGD 19, the combination of non-combustible insulation with effective intumescent supports the construction of safe façade systems. Installed horizontally and designed to ensure an appropriate open air space is maintained, the SP FireStop OSCB is suitable for cavity widths up to 600mm (see under ‘Performance’ for full details). • Tested to “ASFP Technical Guidance Document 19: Fire resistance Test for ‘open-state’ cavity barriers used in the external envelope or fabric of buildings” Up to 120 minutes* fire integrity and insulation Satisfies NHBC and CWCT guidance for ventilation gaps at cavity barrier locations Wind and rain resistant Easy site storage and handling Combined with either ROCKWOOL RainScreen Duo Slab or NyRock RainScreen 032 it simplifies the design of high rise buildings above 18m Consisting of an intumescent strip fixed to high density non-combustible ROCKWOOL insulation, SP FireStop OSCB is designed to form an open-state cavity barrier within the building facade. This allows the product to maintain ventilation and drainage of the cavity under normal service conditions, while in the event of a fire the intumescent strip will quickly expand outwards to seal off the cavity, preventing the passage of fire and smoke. For more information visit rockwool.com/uk

APPLICATIONS SP FireStop OSCB is suitable for use within ventilated fagade systems. PERFORMANCE SP FireStop OSCB has been tested in accordance with ASFP TGD 19 and achieved the performances detailed in the table below. It is important to note that the fire resistance performance of the fire-stop is only as good as the performance of the supporting substrates in to which it is installed. Where fire-stopping is installed up to a non-fire resisting external wall then the performance of the fire-stop will be limited to the performance of the wall itself. • SP FireStop OSCB 25 achieves up to 120...

SP FireStop OSCB INSTALLATION SP FireStop OSCB is only tested and certified for horizontal applications in conjunction with RainScreen Duo Slab or NyRock RainScreen 032. For more detailed installation guidance, please download the OSCB Contractors’ Guide from the ROCKWOOL website. Note that the polythene wrap covering each section of barrier is not to be removed, and if cut must be reinstated. SP FireStop OSCB is supplied ready to install with two galvanised steel fixing brackets and four pigtail screws per meter length. The brackets should be mechanically and securely fixed to the wall at...

SP FireStop OSCB Ancillary products SP FireStop OSCB Fixing Brackets Required for installation, these galvanised steel brackets are supplied with SP FireStop OSCB at a rate of two per metre length. Brackets are packaged in a separate cardboard box located at the bottom of a pallet - the location will be marked with a label. SP Fixing Brackets are designed to be easily re-profiled by hand on site, and should be cut as necessary to ensure they penetrate the barrier by at least 50% of its width. Stainless steel brackets are available as an option. Pigtail Screws These are required for SP...

LEGAL NOTICES General safety requirements - Building Safety Act 2022 ROCKWOOL Limited is committed to supporting specifiers, resellers and users of ROCKWOOL products for the full life cycle of the product to comply with the obligations and responsibilities set out in the Building Safety Act 2022. With regard to the general safety requirements of the Act, ROCKWOOL Limited cannot control or foresee every situation where its products might be used. We therefore strongly advise that specifiers, resellers and users contact us where use of ROCKWOOL products is contemplated in applications...

ROCKWOOL stone wool -safe to install and live alongside There are no hazardous classifications associated with stone wool insulation manufactured by ROCKWOOL-UK according to EU REACH and UK REACH regulations on health and the environment. ROCKWOOL safe use instruction sheets and material safety data sheets (where applicable) can be downloaded here. ROCKWOOL stone wool insulation is recyclable and can be transformed into new ROCKWOOL products. Please contact us for details of how we can work together to recycle waste ROCKWOOL stone wool material that may be generated during on-site...