A concealed gutter is a less directly visible gutter-like provision at a roof junction, for example beside a rising building component. Its arrangement varies with the detail, so the term does not automatically identify a particular material or fixed dimension.
Because components may be hidden, an ordinary roof photograph does not always reveal the complete water route. Describe its position relative to the wall, dormer or roof plane. Have the assessor identify accessible sections and limitations of the investigation.
A repair proposal should explain how the provision connects to surrounding covering and where work ends. Ask which finishes need temporary removal as well. A concealed detail deserves an identifiable description in the dossier, not merely a general gutter-work item.
Worth asking
Frequently asked questions
Can a concealed gutter be fully assessed from the street?
Not always. Identify visibility and investigation limits explicitly.
Is this term equivalent to roof valley?
Not necessarily. Location and actual geometry establish the detail concerned.