From ancient times in Japan, kirizuma-style roofs were valued higher than those of yosemune-style, and irimoya -zukuri style roofs, which combined both, were valued as the most esteemed.
日本においては古来より切妻屋根は寄棟屋根より尊ばれ、その組み合わせである入母屋造はもっとも格式が高い形式として重んじられた。