PURPOSE: To prevent the invasion of a cockroach, etc., by mixing one or more kinds of animal repellents selected from a group consisting of an insect proof agent, a rodenticide, a wild animal repelling agent, a bird repelling agent and a dog repelling agent with the film formed on the surface of a steel plate.

CONSTITUTION: One or more kinds of animal repellents selected from a group consisting of an insect proof agent, a rodenticide, a wild animal repelling agent, a bird repelling agent and a dog repelling agent are mixed with the film 3 containing an ultraviolet screening layer formed on the surface of a steel plate 1. By providing the ultraviolet screening layer to the film 3, the photodecomposition and deterioration of the insect proof agent due to ultraviolet rays such as solar rays can be suppressed. By this method, the effect preventing a harmful animal containing a harmful insect such as a cockroach approaching the surface of the steel plate or staying thereon for a long time can be held over a long period of time.