1. Two layers of PROMATECT®-H board, stagger the joints by at least 350mm. When using boards with different thickness, fix the thicker board first
  2. Galvanised steel perimeter angle 40mm x 40mm x 1mm thick
  3. 40mm long M6 masonry anchors at nominal 500mm centres
  4. 30mm long No.8 self-tapping screws fixed to steel perimeter angle at 200mm centres
  5. Laminating stitching screws of appropriate length at maximum 300mm centres
  6. Once first layer of board is screwed to the perimeter angles, all subsequent layers are:
    1. fixed to the perimeter angle, and
    2. stitched to the proceeding layers of boards