Hi I've been asked to upgrade four internal doors for a private landlord, three of which have transom windows above them. Fire safe glass can be obtained to replace these but i am hesitant to do so as the regulations on door glazing are so strict that if they extent to the transom it would be prohibitively complex. If glazing is not an option then they can be panneled over but again there must be some regulation on this essential area? A side point to this is that the frames are a little under standard size, requiring bespoke FD30 doors, so that if the transom must be scrapped then new frames with standard doors might be a lot more economical. Any help in the matter would be greatly appreciated.