Great question! Dealing with trash on a windy rooftop is a real challenge. The best type of can needs to be a fortress against gusts. Here’s what to look for, based on real-world experience.
First, weight is your best friend. Opt for heavy-duty materials like powder-coated steel or thick, commercial-grade plastic. Lightweight bins will become projectiles. Second, a secure lid is non-negotiable. A tight-fitting, hinged lid that locks or has a sturdy latch is ideal. Flip lids or simple covers will fail. Third, consider anchoring. The ultimate solution is a bin designed to be permanently anchored or one with anchor point brackets. You can secure it to parapet walls or the roof structure itself.
For shape, go low and wide. A cylindrical or square bin with a broad base has a lower center of gravity and is much harder to tip over than a tall, narrow one. Avoid swing lids, as the wind can catch them. Integrated handles are useful but ensure they don't create catch points for the wind.
My top recommendation is a heavy-gauge steel, rectangular bin with a locking, hinged lid and pre-drilled anchor points. It’s not the cheapest, but it’s a permanent solution. For a simpler fix, a heavy plastic barrel-style can with a tight-sealing lid and bungee cords strapping it to a solid structure can also work surprisingly well.
Ultimately, the best rooftop trash can combines mass, a sealed lid, and a secure attachment to the roof. It’s less about aesthetics and all about function and safety to prevent a messy and hazardous situation.