Fix Leaky Roof Around Chimney

Chimney roof leaks are usually caused by gaps or cracks between the metal flashing used to join the chimney to the roof and the chimney.

Fix leaky roof around chimney.

In this case of a roof leaking from around a chimney or fireplace the problem is often the flashing needs to be removed and replaced. Apply roof cement to any gaps or cracks. Small nail holes left behind from old vents satellite dish brackets or anything previously attached to the roof can allow water to enter and cause damage for years before leaking is noticed. Clean any leaves or other debris out of the gap between the flashing and chimney.

Plug pinholes with roofing cement and patch holes up to about 3 4 inch in diameter with a patch from the same material as the flashing. This can involve a significant amount of the roofing tiles felt and flashing to be removed in order to fully uncover the exact leak source and check for any damaged decking or plywood. To do this ask an assistant to observe the area of the ceiling near the chimney and run water along the sealed gaps of the. To repair chimney flashing leaks.

To repair loose roof chimney flashing. First roughen the area around the hole with a wire brush or sandpaper and then clean it. Use masonry nails or screws to reattach the flashing tight against the chimney. Water test the roof at the area of the chimney using a garden hose.

Small holes or corroded spots in flashing can be easily repaired. Inspect the flashing for gaps or cracks.