I have a set of airlift rollups now that replaced the polycarbonate ones I had. I absolutely love them they don't freeze close like the polycarbonates do (For you forum trolls yes I have floor heat and yes it works. The
doors that get stuck are on the northern side of my building where it gets little sun). They are also very little maintenance, just keep them clean and lube your bearings. I am having two more sets getting installed very soon. I recommend you get the airlift rollups that have the strapeze counterweight and emergency pull cords just in case, you can never be too safe.