Q: Is it permissible to completely cover a fire rated door in a hospital with a polyvinyl picture/mural? Also, is it permissible to cover a fire rated wall, from floor to ceiling in hospital with the same product?
A: No. You are not permitted to cover a fire-rated door with anything. Period. The reason why is, whatever is placed on the door will likely change the fire-resistive characteristics of the door and may likely allow the door to not last as long as it is designed.
Assuming the mural is newly installed, a poly-vinyl picture mural on the walls of the hospital may be permitted if it meets the requirements for interior finish. Class A interior finish is permitted on walls, and Class B is permitted in rooms where the capacity does not exceed four persons. A Class A material has a flame spread rating of 0 -25, and a Class B materials has a flame spread rating of 26 – 75.
Ask your supplier/vendor to provide the interior finish classification or the flame spread ratings to determine if you are compliant.