Where additional strengthening and repairs are necessary, the work should be carried out in an unobtrusive manner retaining as much of the original timber as possible.
Os oes angen gwneud gwaith atgyfnerthu ac atgyweirio ychwanegol, dylid gwneud y gwaith mewn modd anymwthgar gan gadw cymaint o'r pren gwreiddiol â phosibl.