Wrap the chimney with plastic and tape it securely.
Flat roof leaking around chimney.
If your roof still leaks it is not the chimney.
That part of the flashing is very vulnerable to leaks.
Leaks around fireplace chimneys are common and can be hard to identify the source.
Mortar cracks chimney flashing and crown deterioration on a chimney will contribute to leaks on a flat roof.
All chimneys need maintenance over time.
Instead sealing the chimney crown with a liquid sealant we used a rubber membrane.
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.
The flashing on a chimney is one of the biggest reasons for roof leaks.
To perform a proper chimney leak repair is crucial for any flat roof.
Most of the time the metal flashing has to be inserted into a slot into the face of the brick.
Applying roofing cement to gaps between metal flashing and the chimney.
Repairing the flashing on a chimney.
Oh yeah don t use the fireplace with your chimney covered with plastic and this is not how to fix a leaking chimney.
When a roof leaks the problem is often due to leaks in and around the metal roof flashing that protects roof edges valleys and the junctions between roofing and obstructions such as chimneys dormers and vent pipes.