Rot Where Chimney Meets Roof

Needs a cricket or saddle basically a small roof built behind the chimney.

Rot where chimney meets roof.

Larger brick or stone chimney s that require flank flashing down the sides to the ground costs up to 2 000 to repair. A chimney sweep or a mason performs chimney flashing repairs. We have a roof leak which seems to be mystifying our roofer. It has happened and usually isn t discovered until people have spent a terrible sum fixing everything else.

Leaks from your chimney are not always so easily detected but they can cause major structural damage if not taken care of readily. Chimney flashing is a sheet of metal installed around the base where the roof and chimney meet to prevent leaking. A wide chimney forms a dam on your roof. Mildew mold and bad odors.

So chances are if you ve been looking into your roof and its flashing you have questions. Get free estimates from chimney repair companies. 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. This flashing may come loose or break off due to high winds or other extreme weather conditions.

The intersection between a roof and a sidewall can be a rot problem waiting to happen. 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. When moisture enters your roof it can penetrate your attic and possibly the ceiling area. The soffit is the wood or metal panel on the underside of the roof s overhang.

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. Consistent moisture is known to cause wood rot roof damage attic issues and drywall damage around the ceilings. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse. But not all chimney flashing problems are the result of poor installation.

Any chimney wider than 30 in. Damage to the walls and ceilings. Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. Rot in your roof rafters joints or other structures.