Reply To: HIVE ROOF QUESTION Welcome › Forums › Shipston Beekeepers ‘Let’s talk beekeeping’ Forum › HIVE ROOF QUESTION › Reply To: HIVE ROOF QUESTION 5th June 2020 at 4:33 pm #3102 Gary TParticipant I’ve found that the bees simply propolyse any grids or mesh if they can get to them so I’m with Tim; if you have open mesh floors I’d just cover the vent opening with something ‘solid’.