Fabric First - Heating and ventilation measures would be available only when the thermal efficiency of the dwelling has been improved to a satisfactory standard to accommodate them.
Yr Adeiladwaith yn Gyntaf – Ni fydd modd cynnal mesurau gwresogi ac awyru nes bod defnydd yr adeilad o wres wedi’i wella at safon ddigonol i allu eu cyfiawnhau.