To provide a multi-span type snow room that does not require a large amount of snow and electrical equipment and does not require installation work by the action of a double-structured heat insulating material and an air layer therebetween. A container group comprising a dry container that stores vegetables, a referrer container that stores snow, an inner heat insulating layer that covers the outer periphery of the container group, and an outer heat insulating layer that covers the inner heat insulating layer. And an outer peripheral protection part covering the outer heat insulating layer, an air layer between the inner heat insulating layer and the outer heat insulating layer, a cooling drain, and a vent pipe leading to the dry container and the referrer container. The air layer is characterized in that at the ceiling portion, at least one outer peripheral side surface penetrates the outer heat insulating layer and the outer peripheral protection portion and communicates with the outside through an opening for convection. [Selection] Figure 1【課題】二重構造の断熱材と、その間の空気層の作用によって、大量の積雪や電気設備を必要とせず、また、設置手間も掛からない連棟式雪室を提供する。【解決手段】野菜を貯蔵するドライコンテナと、雪を貯蔵するリファーコンテナと、からなるコンテナ群と、該コンテナ群の外周を覆った内側断熱層と、該内側断熱層を覆った外側断熱層と、該外側断熱層を覆った外周保護部と、該内側断熱層と外側断熱層の間の空気層と、冷却排水樋と、該ドライコンテナと該リファーコンテナに通ずる通気パイプと、を、少なくとも備え、前記空気層が、天井部で、空気を対流させるために少なくとも一つの外周側面で前記外側断熱層と前記外周保護部を貫通して外部に開口部で連通していることを特徴とする。【選択図】図１
