FLASHING BOARD

PROBLEM TO BE SOLVED: To provide a flashing board capable of definitely preventing the contamination of an exterior wall surface of a building by preventing the flow-down of water from both end portions and joints of flashing board without using metal members which create certain design problems. SOLUTION: On a flashing board to be attached to the exterior wall surface of a building equipped with a sloped surface 11 and a flashing portion 13 continuing to the sloped surface 11, stripe-shaped water repellent finishing portion 15 consisting of a plurality of sloped lines is formed at both the end portions and jointing portion of the sloped surface as well as the both end portion and jointing portion of the flashing portion. The water repellent finished portion 15 comprises a water repellent finishing portion 15A at the edge portion side formed straight along the both end portions and jointing portions of the sloped surface as well as the both end portion and jointing portion of the flashing portion, and a stripe-shaped water repellent finish 15B consisting of a plurality of oblique lines formed downward at predetermined intervals from the water repellent finish 15A at the edge portion side.