Siderise EW Systems Cavity Barriers and Fire Stops comprise a low resin content stone wool insulation core pre-compressed internally to form a resilient strip. The material is faced on two sides with reinforced aluminium foil which is an effective smoke barrier. Available in the following forms:

Pre-cut Strips

Pre-cut products are available in 1mm increments of width to suit the cavity size. Please see Table 2 & 3 of the manufacturer's Technical Datasheet regarding 'fit type'.
Supplied with appropriate brackets as part of a system.

Sheets

Standard sheet size is 1200 x 1200mm and may be of benefit when the actual void size is not known or where it varies significantly.
Appropriate brackets must be ordered separately.

Siderise EW Cavity Barriers and Fire Stops should be installed in accordance with PD6697:2019 - 'Recommendations for the design of masonry structures to BS EN 1996-1-1 and BS EN 1996-2'.

Horizontal - EW must be installed with a suitable cavity tray immediately above.
Vertical - EW must be installed with a DPC extending a minimum of 25mm into the cavity on either side. DPC to be sourced separately. If requested by Building Control / Warranty provider the DPC can be optionally secured with Siderise RFT 120/45 foil tape.

Features and benefits:

Reaction to fire Third-Party Certification with Intertek - classified as A1 to EN 13501-1.
Qualified performance: Fire resistance options up to 2 hours
Choice of systems: Comprehensive range compliant with building regulations – friction fit up to 350mm cavities
Installation: A one-piece product that accommodates normal site tolerances
Practical, simple, and thought-out: Integral foil smoke barrier, robust yet resilient 3rd Party-Approved: IFCC 1830 (EW)

CCPI EW – Cavity Barriers And Fire Stops For Masonry External Walls