我厂一千吨冷库筹建于１９５４年，并于１９５６年７月建成降温投产，原设计隔热材料为泡沫混凝土，１９７１年冷库大修理时加建阁楼层，改用稻壳隔热材料，阁楼层混凝土屋面板上贴三毡四油，油毡层上用钢筋混凝土预制板作架空处理。１９９８年６月雨季时检查阁楼稻壳隔热... One thousand tons of cold storage in our factory was built in 1954 and was put into production in July 1956. The original design of thermal insulation material was foam concrete. In 1971, when the cold storage was overhauled, an attic layer was built and replaced with rice husk insulation material. Three layers of felt and four oils are applied to the concrete roof, and the reinforced concrete precast slab is used for overhead treatment on the felt layer. In the rainy season in June 1998 to inspect the attic rice husk insulation...