Key points
- Roof flashing directs water away from joints and openings around chimneys, vents and walls.
- Ask your roofer to show you which joint they inspected and what they found.
- A written estimate should say which flashing will be replaced, which may be reused and what could change after tear-off.
If a roofer points to the metal along your chimney and says the flashing needs attention, ask them to show you where water is supposed to go. For Northwest Ohio homeowners, that simple question can turn a vague repair recommendation into a scope of work you can understand. Here’s what roof flashing does and what to ask before approving a repair or replacement.
Where roof flashing matters most
Shingles shed water across the main surface of a roof. Flashing helps carry it past places where that surface meets something else. The pieces are often metal, although the material and design depend on the roof and the opening. See GAF’s guide to roof flashing for common examples.
- Chimneys: Step flashing can protect the sides where the shingles meet the chimney. Counterflashing covers the upper edge of those pieces. Ask which part needs work and whether the roofer also saw a concern with the masonry.
- Roof-to-wall joints: These often appear where a lower roof meets a second-story wall or dormer. Ask how the roof and wall details work together and whether siding or trim needs to be moved to inspect them.
- Vent pipes and skylights: These openings need flashing designed for the opening and roofing system. Ask which parts are worn or damaged and whether the estimate includes the whole assembly or one component.
What to ask when the roofer finds a problem
Can you show me where the water may be getting in?
Ask for a photo that shows the whole area and a close-up of the concern. A ceiling stain can help the roofer narrow the search, but water can travel before it becomes visible indoors. Share when you noticed it, what the weather was like and whether it has returned in the same spot. Ask what the inspection confirmed and what still needs checking.
What would a repair address?
Ask whether the issue appears limited to one joint or whether surrounding shingles, siding or masonry may also need attention. If you’re given two options, ask what each includes, what each leaves for later and what condition would make the larger scope necessary. That gives you something more useful to compare than two totals.
What happens to existing flashing during a replacement?
Have the contractor list the details they plan to replace and any they expect to reuse. Ask how they’ll assess condition and compatibility with the new roof. If part of the detail is hidden, ask when the crew will be able to see it and how they’ll document any extra work for approval. Tri-County’s residential roofing services include chimney flashing and roof repairs.
Before work starts, ask who will handle any trim or siding that needs to come off and who will put it back. If the roofer and another trade are involved, get that division of work in writing so you know whom to call with questions.
What to have ready before you call
Write down where you noticed moisture, when it appeared and whether anyone has worked on that area before. Photos taken from the ground or indoors can help you describe it. If you’re also reviewing the rest of your roof, Tri-County’s fall roof inspection guide covers other areas you can discuss with your roofer.
Have a question about a chimney, vent or roof-to-wall joint on your Northwest Ohio home? Contact Tri-County Roofing & Home Improvement to discuss what you’ve noticed and ask about an assessment.