In consultation with model building code officials, state fire marshals and local building inspection officials, a sign has been developed which satisfies the requirement for identification of rated walls.
The signs are intended to be used to identify the actual fire-rated integrity of a wall. Therefore, prior to placing the sign, it is essential that the wall be verified and, if found to be deficient, improved to conform with the intended qualities. Only after sealing all holes and penetrations and verifying the presence and proper installation of appropriate duct dampers should the sign be installed.
Most code officials require wall identification be placed on both sides of all rated walls, treating each time a wall changes direction as a new wall. Spacing of signs on a long wall should not exceed 12-foot centers. It is recommended that signs be installed in all finished areas 8-inches above suspended ceilings and in unfinished areas without suspended ceilings approximately 10-feet above the floor.