Coated metal sheet, method for producing same, and exterior building material

A method for producing a coated metal sheet comprising a metal sheet and an overcoat coating film disposed on the metal sheet, comprising the steps of:

• applying an overcoat coating material containing a fluorine resin, a gloss adjusting agent, and a matting agent onto the metal sheet;
• and
• curing the coating film of the overcoat coating material to form the overcoat coating film;
• wherein a content of the gloss adjusting agent in the overcoat coating film is from 0.01 to 15 vol %, and a content of the matting agent in the overcoat coating film is from 0.01 to 15 vol %,
• wherein the gloss adjusting agent is particles having micropores, and the matting agent is primary particles, and
• wherein the gloss adjusting agent and the matting agent which satisfy the following equations are employed:
• D197.5/T≦0.9
• Ru≦1.2T
• R≧1.0
• 0.5≦D297.5/T≦7.0
• 3≦T≦40
• wherein R (μm) is a number average particle diameter of the gloss adjusting agent, T (μm) is a film thickness of the overcoat coating film, D197.5 (μm) is a 97.5% particle diameter in an accumulated particle size distribution of the gloss adjusting agent based on the number of particles, D297.5 (μm) is a 97.5% particle diameter in an accumulated particle size distribution of the matting agent based on the number of particles, and Ru (μm) is an upper limit particle diameter in a number particle size distribution of the gloss adjusting agent.