Flat Roof Chimney Leak

To perform a proper chimney leak repair is crucial for any flat roof.

Flat roof chimney leak.

Mortar cracks chimney flashing and crown deterioration on a chimney will contribute to leaks on a flat roof. The flashing on a chimney is one of the biggest reasons for roof leaks. Common reasons for leaks on flat roofs. This flashing is normally installed around pipes and at roof edges but it isn t always that durable.

A common cause of leaks on flat roofs is often flashing. Most of the time the metal flashing has to be inserted into a slot into the face of the brick. Instead sealing the chimney crown with a liquid sealant we used a rubber membrane. 6 chimney leaks that aren t chimney leaks.

Thin pieces of material sometimes metal that have been installed to weatherproof the roof and stop water entering at angles or joint. 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. For example your roof might have a leak through the attic vent or roof shingle at the. This tells you if you should waterproof the chimney.

It is the first place to troubleshoot for leaks on a roof. Leaks around fireplace chimneys are common and can be hard to identify the source. Applying roofing cement to gaps between metal flashing and the chimney. The mortar grout is usually the first to go.

That part of the flashing is very vulnerable to leaks. Flashing is the number one cause of leaks on flat roofs. Sometimes a leak starts in a different place but finds its way to the chimney and then visibly enters the inside of a room at the point of the chimney. Metal flashing copper bend at a 90 degree angle making the transition between the roof and chimney.

All chimneys need maintenance over time.