Dealing with the bees and comb was easy. Just a case of brushing the bees off of the comb into a nuc as we removed it. We only found two small patches of brood which was fixed into a split frame no placed into the middle of the nuc. I assume we got the queen as bees we're going into the nuc when we left it on site.
The hard part was getting to the nest. The tiles had been removed but we had to remove the battens, sarking felt, 50mm of PIR, more sarking felt then saw through 3/4" sarking boards to get to the bees who were in the 4" between the boards and the ceiling.