Sorry, could you explain a bit clearer what they did by installing the plastic over your production area?
Did they coat the ceiling to prevent water leaking?
I attached a photo as an example of the shrink wrap applied to boats. They used the same material to wrap all exposed beams and cover large open spaces of the ceiling in areas where product would be opened or worked.
The purpose was not to prevent water leaking. Water leaks should be addressed on top of a roof before they can intrude down and drip from a ceiling. This wrap was installed to encapsulate the metal beams and exposed insulation in the open ceiling, preventing any debris from falling down into the production area.

Edited by jfrey123, 09 December 2022 - 04:22 PM.