Thick plank roofing - Atsuita Danbuki

...Kozokubuki is a type of roofing that uses boards that are halfway between persimmon and tsutsumi, but the boundaries between persimmon, tsutsumi, and tsutsumi are unclear. There are various types of long board roofing, such as nagashiitabuki, where thin boards are laid to match the sagging of the roof surface, thick board tiered roofing, where thick boards are laid in two or three layers at different slopes, and meitabuki, where boards are hammered into the joints between the boards, and they are called different names depending on the region. Long board roofing is often seen on small shrine main halls.

*Some of the terminology used in reference to "thick plank roofing" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…柿葺きと栩葺きの中間ぐらいの厚さの板を葺くものを木賊葺きというが，柿葺き･木賊葺き･栩葺きの境界は明確でない。長板を縦に葺く長板葺きには，薄板を屋根面のたるみに合わせて葺く流し板葺き，厚板を2段，3段にこう配を変えて葺く厚板段葺き，板の合せ目に目板を打つ目板葺きなどさまざまな葺き方があり，地方によっては呼名も違う。長板葺きは小規模な神社本殿などに例が多い。…

※「厚板段葺き」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報