3 things I never ever found out about business garage doors: slat scale and end locks influence security

https://victor-wiki.win/index.php/Behind_the_Scenes_of_Commercial_Garage_Door_Installment_at_Overhead_Door_Joliet

3 things I never ever learnt about commercial garage doors: slat gauge and end locks effect safety, slide locks can be monitored, and hood covers shield drums from particles and weather.