Fecha de publicación: 02/09/2022 Fuente: WIPO "hemp" A building group comprises a ground foundation and a reinforced concrete main body structure, the reinforced concrete main body structure comprises a wall body and a reinforced concrete roof panel, and a flat roof system or an antique sloping roof is arranged on the wall body; the flat roof system comprises a parapet wall arranged on the wall body, and a flat roof and an antique inclined cornice which are arranged on the two sides of the parapet wall; the archaized pitched roof comprises a reinforced concrete roof panel, a third cement mortar leveling layer, a polyurethane waterproof coating vapor barrier layer, a third heat preservation layer, a third waterproof layer, a first cement mortar protection layer, a second cement mortar layer, a second hemp knife horizontal slurry layer and a second tile roof layer which are sequentially arranged from bottom to top. Through the combination of modern building materials and ancient design concepts, the utility model relates to the structural design and the connection mode of the wall body and the archaized sloping roof, the adjacent archaized sloping roof and the adjacent archaized inclined cornice, meets the waterproof construction requirements, is suitable for archaized building commercial street areas, and can generate huge economic benefits.