To provide a woody building material which gave water and oil repelling properties and contamination resistance while utilizing the feeling of material and texture of wood.

The water and oil repelling woody building material is coated with a paint film formed from a photo-curable resin composition which contains a fluorine-containing acrylic ester compound (A), fine silica particles (B), a photo-polymerizable oligomer (C) having two or more (meth)acryloyl groups, a reactive monomer (D), and photo-polymerization initiator (E) and in which the average particle size of the silica particles (B) is 1-20 m.