An aluminium window or door complete with attached aluminium shutter in one unit, or an aluminium window or door shutter that can be retro fitted, that has been fireproof coated and treated with intumescent coatings for the purpose of use in construction or renovation in bushfire prone areas to protect to Bushfire Attack Level Flame Zone.

摘要

#$%^&*AU2020100030A420200416.pdf#####Abstract A fireproof one-piece construction of aluminium window roller shutter combination or a door roller shutter combination for use in construction or renovation in bushfire prone areas, wherein the shutter comprising a thermal insulation barrier on the outside of the aluminium substrate to keep the aluminium shutter well below its melting point during an event of a bushfire threat. The system consists of three layers of bonding, intumescent and a low flame spread polyurethane for UV stability and aesthetics on the aluminium shutter.