[PROBLEMS] To save energy and reduce costs by using them as agricultural and horticultural greenhouses and greenhouse roofs / outer walls, and to suppress abnormal temperature rise in the greenhouse in the summer and to suppress abnormal cooling in the winter and cold regions. By doing so, we will provide the optimal growth environment for cultivated vegetables and fruits. Heat insulation air is obtained by partitioning a composite sheet for heat insulation 1 into a plurality of cylinders by partition walls 3 made of light shielding resin along one direction in a flat surface between a pair of transparent films 2a and 2b. The chamber 4 is provided. The partition 3 is formed by changing the angle from the vertical direction to the skew direction between the pair of transparent films 2a and 2b for adjusting the amount of incident light. Further, it is provided with a heat-bonding portion 5 having a predetermined width of a linear strip parallel to each other in a direction orthogonal to one direction in a flat surface between the pair of transparent films 2a and 2b. At least one of the nonwoven fabric 6, the net-like material 7, and the light incident angle control sheet 8 is bonded to the transparent film 2a (2b). [Selection] Figure 1【課題】農業用・園芸用ビニールハウスおよび温室の屋根・外壁として使用して省エネルギーとコストダウンを図り、なお且つ夏季の温室内の異常昇温を抑えたり冬季や寒冷地の異常冷温を抑えたりすることにより栽培野菜・果実等に最適の生育環境を提供する。【解決手段】保温用複合シート１を、一対の透明フィルム２ａ，２ｂ間の平坦面内の一方向に沿って、互いに遮光樹脂製の隔壁部３によって複数の筒状となって仕切った保温気室部４を備えた構成とする。この隔壁部３は、入光量調整のために、一対の透明フィルム２ａ，２ｂ間において垂直方向から斜行方向に角度を変更して形成する。また前記一対の透明フィルム２ａ，２ｂ間の平坦面内の一方向に対し直交する方向に一定間隔で互いに平行となした所定幅員の線条の熱融着部５を備えたものとする。透明フィルム２ａ（２ｂ）には不織布６、網状材７、入光角制御シート８の少なくとも何れか１つを貼り合わせる。【選択図】図１
