If bees cannot occupye more brood, they do not waste energy to making new combs.Mine are only on 5 frames at the moment - transfered from Nuc on Sunday, so still a long way to go. Queen is doing a good job, but a bit worried that workers are not drawing out foundation quickly enough (hence the question about comb). I am feeding them sugar syrup.
That is a good job. But put an extra wall too in the hive. It a big help.Thanks for your help - I do have an open mesh floor so will put my varoa insert in to help stop any draughts. I have a reduced entrance.