The top part of the roof is covered with boards , and is reinforced with katsuogi . 屋根の頂上部は板で覆い、鰹木(かつおぎ)で補強される。
These were wooden buildings with tiled roofs (many being in the yosemune-zukuri style and irimoya-zukuri style . crucifixes were mounted on the tops of the roofs ) and they contained tatami mats , sliding doors , sliding panels and engawa verandas . すなわち木造瓦屋根(多くは寄棟造または入母屋造。屋根の頂上には十字架が乗せられた)の建物で、畳、襖、障子、縁側が用いられた。