You’re trying for something that’s funky, something that sounds good, and you just grab whatever comes to hand.
The property is completed some time before completion of the sale, have received the standard notice of insurance cover to hand over, in which case you will give an undertaking to do so as soon as it comes to hand.
Research shows that as many as a third of all break-ins happen after entry has been gained through glass - often simply smashed with the nearest thing that comes to hand. GE Plastics has introduced a strong new alternative to glass for home use.