Is the current cladding on the building/s part of the original construction, or has it been fitted retrospectively as part of a refurbishment since construction of the building/s?
A yw'r cladin presennol ar yr adeilad yn rhan o'r gwaith adeiladu gwreiddiol, neu a yw wedi'i osod ar ôl y gwaith adeiladu gwreiddiol fel rhan o waith adnewyddu ers adeiladu'r adeilad?