Construction Performance Guidelines
BRICKS BREAKING UP ON SURFACE OF CHIMNEY
Bricks used for chimneys shall not deteriorate or become displaced.
One-Year - Work and Materials. Two-Year - Cladding Detachment, Displacement or Deterioration
Bricks not meeting the acceptable performance shall be repaired.
Moisture migration into the chimney brick can contribute to premature deterioration. Chimney cap overhangs are critical to protect the chimney from weather. See Also: 4.20 CLAY BRICKS ARE CHIPPED