PROMATECT®-H Upgraded concrete/brick wall (Two sided direct fixing) option 3

Upgraded from 60 to 120 minute fire resistance in accordance with the requirements of BS 476: Parts 21 and 22: 1987 and/or AS 1530: Part 4: 2005
  1. PROMATECT®-H board 9mm thick, fixed with steel hats to both sides of the concrete/brick walls
  2. No. 8 self-tapping screws 25mm long at nominal 200mm centres
  3. Steel top hats 50mm x 50mm x 50mm x 1.2mm thick at 1220mm x 610mm grid spacing, fi xed with M6 masonry anchors at nominal 200mm centres with a minimum 25mm penetration into the concrete
  4. Caulk all perimeter gaps with PROMASEAL®-A Acrylic Sealant
  5. Concrete/brick walls
  6. For loadbearing upgrading, the concrete cover to the reinforcing at the non board side must be of minimum 30mm thick and minimum 50mm thick for 120 minute and 240 minute fire resistant wall respectively

    The board thickness of the protection material is relevant to the strength of the concrete and the cover to the reinforcement. In some instances, e.g. for high strength (Grade B70) condition, PROMATECT®-H 50mm thick is required for 120 minute fire resistance performance tested to RWS fire curve. This applies to all exposure curves