<;P>;PROBLEM TO BE SOLVED: To provide a ridge pole-directionally banked construction which can be constructed easily and at a low cost, and inhibiting the elevation of temperature by a high air-ventilating capacity. <;P>;SOLUTION: This ridge pole-directionally banked construction 10 is an agricultural or horticultural plastic green house, etc., of an arch-formed roof and having an inclined ridge pole 11 at the top part so that its left side becomes as higher direction as shown in the chart. Also, at the extended part of the ridge pole 11 of a gable side surface 12 at the upper side of the slope, an opening 13 is installed for enabling the exhaust of warmed air in the construction 10 from such the opening 13. <;P>;COPYRIGHT: (C)2008,JPO&INPIT