Post-chimney-fire liner replacement for Mauldin homes — a chimney fire burns at 2,000°F and above, cracking clay tile through thermal shock even when the exterior looks undamaged. A Level II camera inspection determines whether relining is required before the chimney returns to service. Written scope before work begins.
Clay flue tiles are rated for continuous normal operating temperatures. A chimney fire burning creosote deposits reaches far beyond that range — the rapid temperature spike causes sudden differential expansion that fractures tile from the inside out. The outer chimney masonry may look completely unaffected while every clay tile section inside has cracked.
The critical distinction: a Mauldin homeowner whose chimney has experienced a chimney fire may notice no outward signs of damage — no exterior mortar cracking, no visible debris in the firebox, no obvious structural movement. The tile damage is interior and visible only by camera. Using the chimney after a chimney fire without a Level II inspection means using a liner with unknown structural integrity.
Active chimney fires typically produce a loud rumbling or roaring sound — audible from inside the house and sometimes outside. Some homeowners describe it as a jet engine or loud crackling. The sound comes from the rapid combustion of creosote deposits accelerating inside the flue.
Dense, dark, or white billowing smoke from the chimney exterior during a burning event — distinct from normal combustion exhaust. Sometimes accompanied by visible flame or sparks emerging from the chimney cap.
Chimney masonry surfaces or wall surfaces near the chimney become unusually hot to the touch during or after the event — the extreme internal temperature transfers through the masonry to adjacent surfaces.
After a chimney fire, the creosote remaining in the firebox or lower flue area often has a puffy, honeycomb-like texture or a glazed, hardened appearance — evidence that the deposits ignited and partially combusted during the event.
Chimney fires can push smoke and combustion gases back into the living space through damaged liner sections or forced through gaps by pressure. Detector activation during a burning event is a chimney fire indicator even if the fire is not visually obvious.
Slow-burning chimney fires on smaller creosote deposits sometimes produce no dramatic signs — no loud roaring, no visible smoke. These events can crack tile without the homeowner knowing a chimney fire occurred. Annual sweeping and inspection catches evidence of these events.
After a suspected chimney fire, do not light another fire until a Level II inspection is completed. Using a cracked liner exposes combustible materials in the framing to flue gas temperatures that the intact liner would have blocked. NFPA 211 requires Level II inspection after any event that could have affected the chimney's structural integrity.
A camera is lowered through the full length of the flue to document all interior surfaces. The inspection records cracked tile sections, separated joints, displaced liner sections, mortar joint deterioration, and smoke chamber damage. Camera documentation provides a complete picture of whether the liner is intact or compromised.
The chimney exterior above the roofline is inspected for mortar joint blow-out, masonry cracking, displaced cap or crown sections, and separation at the flashing line. Extreme chimney fire temperatures can cause masonry mortar to fail in the upper courses even when the lower chimney appears intact.
If camera inspection confirms tile fractures, displaced sections, or open liner gaps, relining is required before the chimney returns to service. If the liner survives the event intact and no damage is found, the chimney can be returned to service after thorough cleaning of remaining creosote deposits from the event. Findings and scope confirmed in writing before any work begins.
When relining is required, a new stainless liner is sized and installed inside the existing flue — installed over the cracked tile surface. The new liner restores the continuous, intact flue path required for safe use. Top plate sealed at chimney crown, new cap installed to prevent direct rain entry into the new liner.