Abstract: [Object] To provide a wall material and a wall-material building structure that are suitable for achieving high water resistance in the wall-material building structure. [Solution] A wall material X of the present invention has a surface-side joint portion 10 and a rear-side joint portion 20. A first resin film 31 is provided on at least one of an end surface 11a of the surface-side joint portion 10 and an end surface 21 of the rear-side joint portion 20. A second resin film 32 is provided on at least one of an extension surface 11b and an extension surface 22b.

Abstract: [Object] To provide a building material manufacturing apparatus and a building material manufacturing method each of which is suitable to vary, in a receiver width direction, a building raw material deposit amount on a building material forming receiver that receives a building raw material under a sieve portion that screens the building raw material. [Solution] A building material manufacturing apparatus includes a sieve portion 10 and a receiver 30 that receives a building raw material M that has passed through the meshes of the sieve portion 10. The sieve portion 10 includes a series of sheets that are each capable of performing a wave motion when the apparatus is operating, that have an inclination, and that are arranged in a direction of the inclination. The series of sheets include a sieve sheet 12 and a sieve sheet 13 positioned below the sieve sheet 12. In the sieve sheet 12, meshes having an identical size are arranged at a regular pitch in a sheet width direction W.