TDS-091 - Promalit partition interface

® Promat TD Board Detail for Beam Encasement to Fire Rated Partition Head Interface Introduction: ®Promat TD Board is a lightweight non-combustible board specially designed to provide up to 240 minutes fire protection to structural steelwork. The following recommendations should be adopted where a fire rated partition system, running in the ®same plane as a Promat TD Board protected steel beam, is connected to the underside of the beam. Construction Details: • The steel Z brackets, 0.9mm to 1.2mm thick with flanges 32mm wide, (1) are fastened to the beam (2) using shot fired 3.7mm x 16mm steel nails (Hilti ENK 16 S12 or equivalent) at 300mm maximum centres. The Z brackets are the same length as the width of the beam and are spaced at 600mm nominal centres along the length of the flange. • The partition must also include a deflection head assembly where it is fastened to a supporting beam, to allow for the movement of the steel beam in a fire situation. The Building Regulations require that provision for a deflection should be 40mm, or the span of the beam (in mm) divided by 100 (L/100), whichever is the larger. ®• If a SUPALUX partition is installed, a 40mm movement head may be provided using a deep head channel (3) and ensuring that the partition facing boards overlap the head track, but have sufficient clearance to the underside of the beam to accommodate the required deflection. A light gauge angle ®is fastened to the Z ...