On Architecture

8. I have now shown how buildings can be constructed without defects, and the way to take precautions against the occurrence

of them. As for replacing tiles, roof timbers, and rafters, we need not be so particular about them as about the parts just mentioned, because they can easily be replaced, however defective they may become. Hence, I have shown by what methods the parts which are not considered solid can be rendered durable, and how they are constructed.