I had one in the last week. Hive is in full sun until arout 5pm where it gets some shade off the treeline right behind them. Was using wax foundation that is cross wired but doesn't have the vertical wires. It had started to sag shortly after they started building comb and filling it with nectar/honey but this heatwave was just too much. Collapsed right inside the hand hold on the box where the wood is thin. I'm going to cut some plywood to put over the top cover to provide some shade during the hottest part of the day.