A roof cove is the internal corner where a horizontal or sloping surface meets a rising component. It is a relevant zone for the transition of waterproofing. The term identifies the location of the detail, not one fixed method of execution.
Ask how the selected roof assembly addresses this corner and which materials meet there. Viewing an upstand externally does not always reveal the complete connection beneath the finish. The actual arrangement needs to correspond to the detail proposed for the work.
When layers or levels change, the transition at the cove may also require attention. Include that relationship explicitly in the scope. A general item for new covering does not explain how each corner will be formed or which existing components will remain.
Worth asking
Frequently asked questions
Is the cove the same as the upstand?
No. The cove is the corner zone; the upstand is the rising component.
Does this explanation provide a construction detail?
No. The selected system and actual assembly require an appropriate design.