Protecting your house from water damage can be accomplished quickly with a DIY roof leak repair. Start by looking for damaged flashing or broken shingles. To stop leaks, apply roofing caulk to trouble spots. Reapply sealant to roof valleys that aren't adequately sealed to prevent water penetration. Gutter cleaning will enhance drainage and prevent water buildup. For heavier leaks, temporarily cover the area with a tarp. While you prepare for a long-term solution, these actions help reduce damage. When working on your roof, keep safety as your top priority.