Stone tile roofing - Ishigawarabuki

…They are fire-resistant and durable, and their verdigris-covered appearance is attractive, but they are expensive. Lead tiles and stone tiles, which can be seen in some castles, were used to increase defense power or to be used for bullets in times of emergency. Slate roofing has been used in Western-style buildings since the end of the Edo period, and is made by slicing natural slate into thin, scale-like layers. …

*Some of the terminology that refers to "stone tile roofing" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…火災に強く耐久力があり，緑青をふいた姿には趣があるが，高価につく。一部の城郭に見られる鉛瓦葺きや石瓦葺きは有事の際に銃弾に転用したり，防御力を高めるためのものである。スレート葺きは幕末以降洋風建築に用いられたもので，天然のスレートを薄く切ってうろこ状に葺く。…

※「石瓦葺き」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