Invent casement door can be used with variety of hardwares available with best international brands. This makes it versatile and reliable door solution for balconies. Since application of upvc door is for dust and weather proof , it is advisable to not use it as swing doors.
Invent casement sdoor system does not face threat of undue deflection as frame is fimrly attached tp wall. It is recommened to use 1200m width per leaf m glass safety can be achieved by using toughened or mlaminated glass. However french door or door with mullions needs to be analysed on a case to case basis. It is possible to provide door with or without threshold. It is recommended to use door with threshold for better acoustic and thermal performance.