Document the timing
Record the weather and when water appears inside. Water can travel before becoming visible, so the stain is not automatically the entry point.
Arrange qualified access
Do not climb the roof to obtain photographs. Existing ground-level views and reports can help plan the appropriate professional access.
Define the coordinated scope
Roofing, flashing and exterior-finish work may involve separate details or trades. The proposal identifies who handles each part and what verification is included.
Photos help start the review. Access, concealed conditions and required professional review can change the construction scope.