When it comes to home
maintenance, it can be easy to overlook your chimney. Damage from excess
moisture in this location can be a significant problem that you may face as a
homeowner. Have your chimney inspected once a year to prevent the damage
described below.
Rusting
Rain and snow are a
threat to the metal components in and around your chimney. The damper or
firebox in your chimney can rust if water seeps in. Rust deteriorates the
integrity of the metal and creates a severe hazard in your fireplace. Also, a
rusted damper will not create a proper seal, and the conditioned air in your
home can leak out through the chimney. A properly installed chimney cap
prevents moisture from entering.
Spalling
Bricks are made of a
porous material that allows them to absorb moisture. Trapped moisture inside
them expands and contracts as the temperature drops and rises. The process that
causes the surface of the brick to break off is called spalling. Spalling
compromises the structural integrity of your chimney. A professional can apply
a treatment to reduce the risk of spalling in your chimney.
Mortar Damage
The same cycle that
causes spalling causes damage to the mortar between the bricks. Also, the
exposure to water on the exterior of the chimney can cause the mortar to deteriorate.
Damaged mortar results in damage to the bricks, and it also compromises the
structural integrity of your chimney. Tuckpointing is a process done by
professionals that involves repairing the damage.
Linear Deterioration
The lining of the
chimney protects the walls from exposure to intense heat and harsh by-products.
Cracks and holes in the lining are a result of excess moisture. When the liner
becomes damaged, it exposes the chimney walls to extreme conditions as the heat
and by-products rise out of your chimney. This also compromises your chimney's
structural integrity and can damage the walls and ceiling in your home. A
chimney cap can help to prevent this issue.
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