Thatch had been used for the roof since ancient times, but this changed during the Edo Period, and hiwadabuki (a cypress bark roof) was used for the Izumo-oyashiro Shrine building.
古来は萱葺（かやぶき）であったが、江戸時代以降は出雲大社が檜皮葺になるなどの変化が見られる。