Rot Where Chimney Meets Roof

This flashing may come loose or break off due to high winds or other extreme weather conditions.

Rot where chimney meets roof. The soffit is the wood or metal panel on the underside of the roof s overhang. Consistent moisture is known to cause wood rot roof damage attic issues and drywall damage around the ceilings. Rot in your roof rafters joints or other structures. Soffit fascia damage.

6 months after our roof was reshingled and about 2 years after a total chimney rebuild we are still dealing with a roof leak along where the chimney meets the roof of the house leaking inside and running down wall above fireplace. But not all chimney flashing problems are the result of poor installation. 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. We have a roof leak which seems to be mystifying our roofer.

Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. Chimney flashing is a sheet of metal installed around the base where the roof and chimney meet to prevent leaking. So chances are if you ve been looking into your roof and its flashing you have questions. The intersection between a roof and a sidewall can be a rot problem waiting to happen.

A chimney sweep or a mason performs chimney flashing repairs. Larger brick or stone chimney s that require flank flashing down the sides to the ground costs up to 2 000 to repair. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse. A wide chimney forms a dam on your roof.

Leaks from your chimney are not always so easily detected but they can cause major structural damage if not taken care of readily. Damage to the walls and ceilings. Needs a cricket or saddle basically a small roof built behind the chimney. When moisture enters your roof it can penetrate your attic and possibly the ceiling area.

Debris builds up behind that dam and holds moisture which leads to rusted flashing and wood rot. Mildew mold and bad odors. 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. It has happened and usually isn t discovered until people have spent a terrible sum fixing everything else.