UPVC frame is Theft proof due to its toughness plus it provides Multi point locking arrangement. Further resistance is possible with special Glass options.
UPVC can comfortably house bigger sheet of glass due to their inherent deeper glazing rebates which is a stringent requirement for combating higher wind pressures.
UPVC frame are Fire resistant as Upvc material is Self-extinguishing i.e. once the source of fire is taken away it stop burning.