240 Minute Insulated Durasteel Shaft Wall Fire Barrier (EI240)

Perimeter channels fastened to surrounding construction with M10 or M12 all-steel expanding anchors (or equivalent for alternative types of supporting construction) at 500mm maximum centres.

The vertical channels are set at a maximum 1200mm centres. Horizontal and vertical channel members either welded together or joined with steel angle cleats, minimum 60mm x 60mm x 3mm thick x 60mm long, fastened to each channel member with two M10 steel bolts and nuts.

9.5mm Durasteel fillet strips fixed on both sides of channel, according to the detail above. Fillet strips to overlap channel by minimum of 20mm on both sides. 9.5mm Durasteel sheets fixed through the fillet on both sides of channel, with M5.5 steel self drill and tap Tek screws at 250mm nominal centres. Fixings a minimum of 12mm from edge of sheet and a maximum of 50mm from corners. The length of fixing to be sufficient to ensure appropriate penetration of screw thread, in accordance with manufacturer’s recommendations. Vertical board joints coincide with studs, horizontal board joints are backed by steel channel the same size as the vertical studs.

Stone wool infill, according to the detail above, is fitted into the channels. The layers are staggered by a minimum of 150mm.

Note: Standard framework dimensions are based on a maximum wall height of 3m. For wall heights greater than 3m, please contact us.