We use an industrial zip in our doorways only – it provides the client with the convenience of opening the doorway from either side of the blind. The zip is also never removed from the doorway and therefore NEVER has to be re-aligned again when trying to close the door.
We use Velcro on the blinds and panels as it is user friendly, U.V. stabilized, attaches quickly and effectively, and NEVER rusts or breaks off, as in eyelets.