Hardened + Hardened
Low-energy double glazing with toughened safety glass is typically used in commercial doors and windows where intrusion is to be limited.
This type of double glazing is particularly suitable for schools and institutions as the glass has been toughened by a heat treatment. If tempered glass breaks, it will fall to the ground as small fragments. In this way, it limits cuts if, for example, children fall into the glass.
See also our double glazingwith one layer of toughened glass and one layer of low energy glass, if you are interested in having a resistant double glazing on one side only.