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A masonry chimney is reconstructed to withstand seismic forces by adding an insert to the existing firebox
A masonry chimney is reconstructed to withstand seismic forces by completely retrofitting the firebox and chimney using light-frame construction on the top of the foundation
A masonry chimney is reconstructed to withstand seismic forces by maintaining the current firebox but replacing the chimney section with a metal flue and light-weight chimney enclosure.
A masonry chimney is shortened and capped at roof level to reduce its chances of detaching in high winds or earthquakes; the fireplace can no longer be used.
Correct seismic retrofit hardware for securing the sill plate to foundation wall
How to reinforce a chimney to resist earthquakes and high winds – side and top views.