Flat Roof Leaking Around Chimney

Wrap the chimney with plastic and tape it securely.

Flat roof leaking around chimney.

Sometimes a chimney may start to leak only after a very wet series of storms. Oh yeah don t use the fireplace with your chimney covered with plastic and this is not how to fix a leaking chimney. Most of the time the metal flashing has to be inserted into a slot into the face of the brick. That part of the flashing is very vulnerable to leaks.

Expert advice on how to repair roof flashing and chimney flashing prevent ice dams and solve other roof flashing problems. All chimneys need maintenance over time. Leaks around fireplace chimneys are common and can be hard to identify the source. Instead sealing the chimney crown with a liquid sealant we used a rubber membrane.

The flashing on a chimney is one of the biggest reasons for roof leaks. Mortar cracks chimney flashing and crown deterioration on a chimney will contribute to leaks on a flat roof. 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. Applying roofing cement to gaps between metal flashing and the chimney.

The mortar grout is usually the first to go. If your roof still leaks it is not the chimney.