Clay Flue Tile Guide in Nashville and Middle Tennessee
Material guide

Clay Flue Tile Guide

Clay tile has lined chimneys for a century. Here is what it does well and where it fails.

Clay flue tile is a fired clay liner made in square or round sections, stacked inside the chimney and joined with mortar. It resists heat and acid well and has lined most masonry chimneys built in the last century.

It does not like sudden changes in temperature, which is why a chimney fire or a hard freeze can crack it. Cracked tiles and open joints let smoke and heat reach the walls, so damaged tile should be repaired, resurfaced or replaced by a stainless liner.

Best for

  • Masonry chimneys built with tile liners
  • Older homes with clay flues
  • Chimneys after a fire
  • Buyers of older houses

Strengths

  • Handles heat well
  • Resists acids
  • Long life when sound
  • Traditional

Keep in mind

  • Brittle with sudden temperature change
  • Hard to repair deep inside
  • Cracks are hidden
  • Joints can fail
The details

What defines Clay Flue Tile

Heat and acid resistant

Made for the flue.

Cracks are hard to see

Camera shows them.

Fire can crack it

Check after a chimney fire.

Water harms joints

Cap and crown help.

Top tile replaceable

Others usually need relining.

Long life when sound

Decades of service.

Questions

Clay Flue Tile FAQ

How do I know if my tiles are cracked?

A camera scan shows it.

Can cracked tile be repaired?

The top tile can be replaced. Others often need relining.

Is clay or stainless better?

Both work. Stainless is the common retrofit.

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