Flaking brick is a symptom of deterioration, not a reason to cover the surface immediately. Ask for the moisture source and material condition to be assessed before choosing a treatment.
Updated September 10, 2026
Your home in Park City.
About 90% of occupied homes in Park City heat primarily with utility gas. Many chimneys in Park City therefore vent a gas furnace, boiler, or water heater rather than a wood fire, and those flues still need inspection for liner condition, moisture, and blockage. Fewer than 0.1% of occupied homes in Park City use wood as their primary heating fuel. Most fireplaces in Park City see occasional use, and even occasional use calls for an inspection before the heating season. The nearest NOAA climate normals station (Park City, about 1 mile from the Park City city center) averages 8,438 heating degree days per year. That is a long heating season in which venting runs for months and freeze-thaw cycles work on exposed masonry, so check exposed brick and the crown after winter from a safe position.
What you can observe safely
- Keep clear of falling fragments.
- Photograph debris without standing below loose masonry.
What to avoid
- Do not climb onto the roof or enter the chimney.
- Do not alter gas components, venting, or safety controls.
- Do not use a test fire to diagnose the problem.
Possible causes to assess
- Moisture and freeze-thaw exposure
- Incompatible past repairs
- Surface damage
A symptom cannot establish the cause remotely. An assessment of the complete system helps determine the appropriate repair.
Chimney repair in Park CityA few common questions
Can this be diagnosed from a photo?
A photo can document a symptom and help prepare a visit. It cannot confirm concealed conditions or establish that a chimney or fuel-burning appliance is safe.
Sources & further reading
Source checked 2026-09-10.