Rockwool SP 60 and SP 120 Firestop Slabs have been tested and assessed in accordance with BS 476: Part 20: 1987 and have achieved 60 minutes and 120 minutes respectively for both integrity and insulation, as detailed in LPC assessment CC89697.
Rockwool SP 60 and SP 120 Firestop Slabs comply with the provisions of Approved Document B3 of the 1991 building Regulations (2002 edition).
The base mineral wool of Rockwool SP 60 and SP 120 Firestop Slabs is inherently fire safe and achieves Euro Class A1.
Acoustic Rockwool products have excellent acoustic properties and can appreciably reduce the levels of airborne sound trans-mission through wall and floor cavities.
Fire SP 60 Slab, giving 1 hour fire resistance. SP 120 Slab, giving 2 hours fire resistance.
The products are faced on both sides with reinforced aluminium foil to give Class O rating and excellent smoke resistance.
General information Both slabs are designed to be cut on site to produce cavity fire stops of 1000mm length and in widths to suit individual cavity sizes.
Rockwool SP Fixing Brackets* are required for the installation. They are supplied in two standard types, namely SP/S Fixing Bracket designed for cavities up to and including 100mm wide and SP/L Fixing Bracket for cavities over 100mm and up to 400mm wide.
Brackets are supplied in cardboard boxes, flat packed, and are designed to be easily re-profiled by hand on site.
The SP Fixing Brackets should be cut on site as necessary to allow at least 75% penetration of the Firestop.
*In order to comply with the fire test certification, only Rockwool SP Fixing Brackets should be used to install the product.
