You can only blame me in relation to 522.8.7; 522.6.2 was present and unchanged in his BRBJohnW2 this is your fault for encouraging BAS to get the green book522.6.2 & 522.8.7
522.6.2 is actually about 'impacts', so I'm not so sure that's really applicable. 'Impacts' severe enough to penetrate a floor are not exactly common in a domestic environment! 522.8.7 is, of course, the reg I mentioned in the very first response in this thread and, as I said then, there clearly is scope for us (or lawyers) to spend plenty of time debating whether "damage caused by the intended use of the floor" includes drilling into it!These sections are typical examples of a catch all - that is just waiting to taken to the civil court - to earn someone lots of money! I suppose the builder should have anticipated that a fork lift truck might be used in this area and taken proper steps to prevent this incident. 522.8.7 is probably closest but still wide open to interpretation.
Kind Regards, John