Leaks: Water spots on ceilings or walls could indicate a leak in your roof. Missing or Damaged Shingles: Missing shingles expose the roof to water damage and should be replaced. Sagging Roof Deck: A sagging roof deck is a sign of structural damage and could indicate water damage or rotting. Granules in Gutters: Finding granules from shingles in the gutters suggests shingles are wea... https://www.housetriangle.com/