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NATIONAL REGISTER OF HISTORIC PLACES
Artificial Siding Policy
Statement of Staff and State Review Board Position
on the Eligibility of Artificially Sided Buildings for Listing on the
National Register of Historic Places
Artificial siding is not a recommended treatment for historic
buildings of any period or type of construction. To the greatest extent
possible, the maintenance and preservation of original historic
exterior materials should be encouraged in all cases. To this end, AHPP
staff is committed to providing the most current technical advice and
assistance on such preservation technologies as "historically
appropriate" paints, wood protectants and preservatives. The application
of artificial siding frequently compromises the aesthetic integrity of a
building through the removal of original architectural details and the
alteration of both original sheathing dimensions and overall
proportional relationships that are essential to preserving the
building's historic character and visual identification with a
particular period of the past. In addition, the application of
artificial siding can hasten the deterioration of the original, historic
sheathing. Therefore, no buildings sheathed in non-historic artificial
siding - applied less than the historic period of 50 years - will be
eligible individually for listing in the National Register of Historic Places.
Artificially sided properties located within a historic district
being nominated to the National Register under Criterion A may be
considered contributing resources if they meet all of the following
conditions.
- The siding does not conceal architectural details that are definitive of a particular architectural style.
- The siding does not alter the massing, scale, and proportions of the resource.
- The property contributes to the significance of the historic plan or
streetscape of the neighborhood, which may take on greater importance
than the design of the individual house.
If the artificial siding is a historic covering applied within the
period of significance designated in the nomination, it may be
considered a contributing resource to the historic district. If the
artificial siding is non-historic, it must meet the above-referenced
criteria and it must be removable.
Properties located within a historic district that are being submitted
only under Criterion C must continue to meet our existing policy that is
defined below.
- The artificial siding must duplicate the form and dimensions of
the historic siding, including original corner and window trim, entrance
trim, etc.
- There must have been no loss, structurally or visually, of the
significant form, features and detailing of the original structure.
Both of the above conditions must be confirmed to the AHPP staff's satisfaction through historic photographs.