Fireproofing

canuck

Fireproofing sparyed foam
Hi, I was hoping someone here knew a definite answer to this question or a place I can find one.

Building:
A commercial building 1 story, flat roof, metal deck, structure is steel. The exterior is drywalled and the air/vapour barrier is applied onto the outside of the exterior drywall. The roof is a rubber membrane.

To complete the insulation a spray foam was used on the steel that supports the roof at the top of the walls. The walls are not rated wall on the inside. On the interior the drywall is 3/4" shy of the decking to allow for deflection. This leaves a 3/4" gap of exposed foam.

The foam is Polar Foam 7300

Does this foam need to be fireproofed?

Thanks for any help.