To see a roof in your dream symbolizes a barrier between two states of consciousness. You are protecting or sheltering your consciousness, mentality, and beliefs. The dream provides an overview of how you see yourself and who you think you are.
To dream that the roof is leaking represents distractions, annoyances, and unwanted influences in your life. New information is slowly revealing itself to you. Something is finally getting through to you. Alternatively, the dream means that someone is imposing and intruding their thoughts and opinions on you.