A variety of accessories produced for hinged ceilings «Armstrong» makes a simple reconfiguration of the ceiling. The constant growth of the popularity of this system of ceilings led to the start of manufacturers of various accessories for them. These are built -in elements of the air conditioning system, fire extinguishing, built -in lamps. Additional elements are made to the standard size of the plate and can easily be installed at the time of the ceiling or already when operating. Large accessories have the size of the panels, so their installation is simple to indecent: the standard plate is removed and an additional device is put in its place. To change the location of the lighting element or ventilation openings, a standard cassette and an element with the desired built -in accessory are simply rearranged.