PROBLEM TO BE SOLVED: To provide a wall surface structure forming a wall surface while supporting a roof member in cultivation facilities such as a plastic greenhouse.SOLUTION: The wall surface structure makes the cultivation facilities polygonal when viewed in a plane in the cultivation facilities (A) having an air dome-shaped roof structure formed by supplying air to a closed space and making inner pressure higher than that of the outside, and supports multilayer structure roof members set along each side of the facilities and forming a dome roof C. Furthermore, the wall surface structure includes a wall surface base part 1 formed by a rectangular frame, a wall surface member 2 supported by the wall surface base part to form a wall surface while abutting on the inside of the cultivation facilities of the wall surface base part, a square pipe 4 winding around the end edge part of the most inner layer member of the roof members, and a pipe fixing part 3 set in the inside of the cultivation facilities of the wall surface base part and pinching the square pipe. The end edge part of the outer layer member excluding the most inner layer member of the roof members is fixed to part of the wall surface base part.【課題】 ビニールハウス等の栽培施設において、屋根部材を支持しつつ壁面を構成する壁面構造体を提供する。【解決手段】 密閉空間内にエアを供給し、内部圧力を外部よりも高くすることにより形成されるエアドーム型の屋根構造を有する栽培施設Ａにおいて、栽培施設を平面視で多角形とし、その各辺に沿って設置され、ドーム屋根Ｃを構成する多層構造の屋根部材を支持する壁面構造体である。矩形の枠体で構成された壁面基部１と、壁面基部の栽培施設内側に当接されつつ該壁面基部に支持されて壁面を構成する壁面部材２と、屋根部材の最内層部材の端縁部を巻回する角パイプ４と、壁面基部の栽培施設内側に設けられ、角パイプを挟持するパイプ固定部３とを備える。屋根部材の最内層部材以外の外層部材の端縁部を壁面基部の一部に固定させる。【選択図】 図２
