Page 207 - Healdsburg, CA Citywide Design Guidelines

Materials
Primary historic building materials should be preserved in place
whenever feasible. If the material is damaged, then limited
replacement which matches the original should be considered.
These materials should never be covered or subjected to harsh
cleaning treatments.

8.34 Preserve an original building material.
a. Avoid removing original materials that are in good
condition. Repair deteriorated primary
b. Remove only those materials which are deteriorated, building materials.
and must be replaced.
c. Masonry features that define the overall historic
character, such as walls, cornices, pediments, steps and
foundations, should be preserved.

8.35 Repair a deteriorated primary building material.
a. Repair by patching, piecing-in, consolidating or
otherwise reinforcing the material.

8.36 When replacing materials on primary surfaces, match
the original material in composition, scale and finish. Masonry features that define the
a. If the original material is wood clapboard, for example, overall historic character such
then the replacement material should be wood as well. It as walls, cornices, pediments,
should match the original in size, the amount of exposed steps and foundations, should be
lap and in finish. preserved.
b. Replace only the amount required. For example, if a
few boards are damaged beyond repair, then only they
should be replaced, not the entire wall.
c. Do not strip historically-painted wood surfaces to bare
wood to achieve a “natural look.”

Consider removing materials
that have not achieved historic
significance.

Treatment of Historic Resources Chapter 8 199