Brick and Mortar Chimney Guide in Nashville and Middle Tennessee
Material guide

Brick and Mortar Chimney Guide

Brick and mortar are the classic chimney materials. Here is how they work, wear and are repaired.

A brick chimney is made of fired clay brick laid in mortar. The brick is hard and weather resistant. The mortar is softer and sacrificial: it takes the weather and wears first. After decades, joints erode and need repointing, which is why mortar is the most common chimney repair.

Brick faces can also spall when trapped water freezes. Soft old brick needs soft old-style mortar, while newer brick can take a stronger mix. A well-kept brick chimney can last a century or more, especially with a good crown, a cap and sound flashing.

Best for

  • Most houses with a masonry chimney
  • Fireplaces and wood stoves
  • Chimneys that need repointing
  • Owners wanting a traditional look

Strengths

  • Long life
  • Fire resistant
  • Handsome and traditional
  • Repairable

Keep in mind

  • Mortar wears over time
  • Brick can spall in freezes
  • Heavy and needs a footing
  • Matching old brick can be hard
The details

What defines Brick and Mortar

Durable fired clay

Handles fire and weather.

Mortar takes the wear

Repoint every few decades.

Water is the enemy

Crown and cap protect it.

Color and texture

Many looks to match.

Breathable

Lets moisture out.

Long life

With care.

Questions

Brick and Mortar FAQ

How long does a brick chimney last?

Many last a century or more with maintenance.

When does mortar need replacing?

When it crumbles, recedes or lets water in.

Can brick be sealed?

Yes, with a breathable water repellent.

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