Bydd angen sgaffald trwm ac uchel iawn i gyrraedd tywodfaen waliau uchaf yr eglwys, sydd yn frau ac wedi eu treulio gan y tywydd. Cyn gosod y sgaffald, mae Archaeoleg Mynydd Du ac ArchaeoDomus wedi eu comisiynu i gynnal gwerthusiadau archaeolegol, er mwyn osgoi unrhyw nodweddion hynafol bregus sydd wedi eu claddu yn y ddaear y gellid eu difrodi, ac er mwyn sicrhau bod sylfaen sefydlog i’r sgaffald.
The conservation works will require a very high and heavy scaffold to reach the weathered and crumbling sandstone of the upper walls of the church. Before the scaffold is installed, Black Mountains Archaeology and ArchaeoDomus have been commissioned to undertake archaeological evaluations, to avoid any ancient fragile features buried in the ground that may be damaged and to ensure that the scaffold has a stable base.