An upstand is a raised vertical construction section at a roof edge or around a roof component where waterproofing is connected, for example beside a wall or rooflight.
What does this mean on your roof?
The upstand forms part of a junction rather than merely a visible edge. Substrate, attachment and the transition from the main roof surface determine the assembly.
A leak report should identify the affected side or corner and the components adjacent to it, instead of describing every perimeter issue as the same defect.
Additional insulation or covering layers can change the available height. Ask which upstands will be retained and which require alteration during renewal. A neat-looking finish does not establish compatibility with the proposed build-up. Include the selected detail and any rooflight or threshold adaptations explicitly in the written scope.
Frequently asked questions
Are upstands only at the outer perimeter?
No. They can also form junctions around rooflights or beside walls.
Why does additional insulation matter?
Added thickness changes the relationship between the roof surface and adjoining components.