4
8. Ablative Batt Installation Procedure.
8.1
Folded Installation Plate Installation
8.1.1
The
installation plate should be supplied ‘factory folded’.
8.1.2
The damper should be installed within and affixed to the top of the aperature as shown in figure 4.
8.1.3
Fire batt material should be cut to suit void with zero clearance to produce an interference fit. The installation
plate face, and a
ll edges should be ‘glued’ in place, and a bead of intumescent mastic applied at all joints.
8.1.4
Note
– two layers of 50mm min thickness are required to comply with the ‘as tested’ installation method.
8.1.5
Screw-in 50mm long spiral (pig tail) fixings through installation plate into batt material utilising one of the pair
of corner holes, and all intermediate fixing holes
8.1.6
Recommended minimum void gap (per side) is 60mm and maximum 600mm. If folded, 40mm.
Fig 4
