There is a wealth of resources online aimed at educating owners and custodians of old buildings on how to maintain and repair their heritage assets.
Mae adnoddau helaeth ar gael ar-lein sydd wedi'u hanelu at addysgu perchnogion a cheidwadwyr hen adeiladau ynglŷn â sut i gynnal a chadw ac atgyweirio eu hasedau treftadaeth.