Rot Where Chimney Meets Roof

Soffit fascia damage.

Rot where chimney meets roof.

Rot in your roof rafters joints or other structures. This flashing may come loose or break off due to high winds or other extreme weather conditions. Mildew mold and bad odors. A wide chimney forms a dam on your roof.

So chances are if you ve been looking into your roof and its flashing you have questions. A chimney sweep or a mason performs chimney flashing repairs. Needs a cricket or saddle basically a small roof built behind the chimney. Larger brick or stone chimney s that require flank flashing down the sides to the ground costs up to 2 000 to repair.

The intersection between a roof and a sidewall can be a rot problem waiting to happen. Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. Damage to the walls and ceilings. Chimney flashing is a sheet of metal installed around the base where the roof and chimney meet to prevent leaking.

Debris builds up behind that dam and holds moisture which leads to rusted flashing and wood rot. Any chimney wider than 30 in. Also if your chimney is near the peak of the roof your chimney should have a triangle metal tent on the high side where the chimney meets the roof to prevent pooling at the base of the chimney. Another event that could happen although i have never heard of it actually happening is that you could get so much moisture in your attic that it could condense and roll down the stringer onto your chimney.

We have a roof leak which seems to be mystifying our roofer. But not all chimney flashing problems are the result of poor installation. The soffit is the wood or metal panel on the underside of the roof s overhang. Even if the roof has been properly flashed against the sidewall this one hasn t water can still run down the side of the house and behind the siding causing rot.

Get free estimates from chimney repair companies. It has happened and usually isn t discovered until people have spent a terrible sum fixing everything else. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse. When moisture enters your roof it can penetrate your attic and possibly the ceiling area.