WHAT DOES IT MEAN?
A roller garage door curtain is the moving surface formed by connected horizontal slats. It travels in guides and coils above the opening as the door opens.
In practice
Here, curtain refers to the door assembly rather than a fabric screen. Its size, slat profile, connecting components and finish are part of the specified door system.
The roll needs an appropriate amount of headroom, and the sides of the curtain need suitable guides and supporting surfaces. A dent, displaced slat or unusual rubbing can affect movement and should be assessed. Do not try to straighten or force a damaged curtain while the system is under load.
