Nagare-zukuri

The nagare-zukuri (流造, streamlined roof style^?) or nagare hafu-zukuri (流破風造, streamlined gabled style^?) is a traditional Shinto shrine architectural style characterized by a very asymmetrical gabled roof (kirizuma-yane (切妻屋根^?)) projecting outwards on one of the non-gabled sides, above the main entrance, to form a portico (see photo). This is the feature which gives it its name. It is the most common style among shrines all over the country. That the building has its main entrance on the side which runs parallel to the roof's ridge (non gabled-side) makes it belong to the hirairi or hirairi-zukuri (平入・平入造^?) style.

Sometimes its basic layout, consisting of an elevated core (母屋, moya^?) partially surrounded by a veranda called hisashi (all under the same roof), is modified by the addition of a room in front of the entrance. A nagare-zukuri honden (sanctuary) varies in roof ridge length from 1 to 11 ken, but is never 6 or 8 ken. The most common sizes are 1 and 3 ken. The oldest shrine in Japan, Uji's Ujigami Shrine, has a honden of this type. Its external dimensions are 5x3 ken, but internally it is composed of three sanctuaries (内殿, naiden^?) measuring 1 ken each.

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Wikipedia