FIRESTOP FOR RAISED FLOOR
Cavity Barriers for Raised Floor
Siderise cavity barrier and fire stop systems for raised floors to prevent the spread of fire and smoke, and reduce sound transmission, by sealing the voids between raised access floors and floor slabs.
The range includes options to either subdivide large uninterrupted cavities or to provide continuity of fire resistance when aligned underneath partitions. Across the range, these simple-to-install systems have been tested for fire performance, acoustic performance and for use as a plenum liner.
They have been designed as a one-piece system and afford easy cutting and installation. Additionally, due to a unique method of manufacture, the products also offer unique vertical compression to allow tightness of fit.
The excellent acoustic performance of the material is due to the unique internal construction of the stone wool lamella core. It enhances the ‘room-to-room’ sound reduction by 25 (Rw)dB of raised access floors which form a continuous common void under adjacent areas. This invariably results in improved speech privacy and greater control of disturbance from intrusive noise.
Key Benefits
- Up to 2 hours fire-protection
- Easy to install
- Fully qualified acoustic performance
- Integral smoke barrier
System Fire Performance
Siderise RF cavity barrier and fire stop systems have been successfully tested to the latest European standards – EN 1366-4 for up to 120 minutes fire resistance (integrity and insulation). In terms of ‘Reaction to Fire’, the products are classified ‘A1’ to EN 13501-1.
Operation
Measure the cavity width(s) for horizontal cavities. Cut the sheets into strips, allowing an additional 10% for compression fit and dry smoke seal.
Bend and insert the Z-brackets into the CWFS material’s side, ensuring that the top of the bracket is flush with the top of the material. Brackets should be 600mm apart.
Drill fixing holes and fitting the brackets into the slab. Tape all butt joints with Siderise® foil tape on the top side only.
A section of the barrier should be removed to accommodate the cable tray. Cuts should be made by scoring the foil of the barrier with a sharp knife and then using an insulation saw to make the cut. The cut should be neat and snug around the cable tray. The removed piece of barrier should be retained for later use.
The cut section of the barrier should be reinstated into the gap above the cables.
The joint between the main section of the barrier and the cut piece should be taped over with Siderise RFT 120/45 tape.
Sealant should then be used to fillet seal the junction between the barrier and cables. The fillet seal should be 10-30 mm wide and 10-30 mm high. Particular care should be given to keeping the seal within these dimensions.
