According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse.
Rot where chimney meets roof.
A wide chimney forms a dam on your roof.
Needs a cricket or saddle basically a small roof built behind 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.
Rot in your roof rafters joints or other structures.
Any chimney wider than 30 in.
Chimney flashing is a sheet of metal installed around the base where the roof and chimney meet to prevent leaking.
Get free estimates from chimney repair companies.
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.
Soffit fascia damage.
When moisture enters your roof it can penetrate your attic and possibly the ceiling area.
It has happened and usually isn t discovered until people have spent a terrible sum fixing everything else.
Larger brick or stone chimney s that require flank flashing down the sides to the ground costs up to 2 000 to repair.
Mildew mold and bad odors.
A chimney sweep or a mason performs chimney flashing repairs.
Leaks from your chimney are not always so easily detected but they can cause major structural damage if not taken care of readily.
This flashing may come loose or break off due to high winds or other extreme weather conditions.
So chances are if you ve been looking into your roof and its flashing you have questions.
Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks.
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.
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.
Damage to the walls and ceilings.
Consistent moisture is known to cause wood rot roof damage attic issues and drywall damage around the ceilings.
Debris builds up behind that dam and holds moisture which leads to rusted flashing and wood rot.