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Historic Preservation - Technical Procedures

Spectitle:

Guidelnes For Rehabilitating Hstrc Bldgs: Entrances And Porches

Procedure code:

0109111S

Source:

National Park Service, Preservation Assistance Division

Division:

General Requirements

Section:

Reference Standards

Last Modified:

02/24/2012

Details:

Guidelnes For Rehabilitating Hstrc Bldgs: Entrances And Porches



GUIDELINES FOR REHABILITATING HISTORIC BUILDINGS:  ENTRANCES AND
PORCHES


U.S. Department of the Interior
National Park Service
Preservation Assistance Division
Washington, D.C.


An illustrated booklet addressing the Secretary's Standards and the
guidelines is available from the U.S. Government Printing Office.
The title is "The Secretary of the Interior's Standards for
Rehabilitation & Illustrated Guidelines for Rehabilitating Historic
Buildings", ISBN 0-16-035979-1.

Each of the guidelines included in the booklet mentioned above have
been separated into individual entries for specific use in HBPP.
This entry represents one of many guidelines included in the
booklet and describes RECOMMENDED and NOT RECOMMENDED applications
of the Secretary of the Interior's Standards as they relate to
Entrances and Porches.  For a list of the Secretary of the
Interior's Standards for Rehabilitation, see 01091-04-S; For
general information relating to the purpose, organization and
content of the individual guidelines, see 01091-05-S.  Both of
these entries should be referenced along with the information
contained in this document.


BUILDING EXTERIOR

ENTRANCES AND PORCHES:

Entrances and porches are quite often the focus of historic
buildings, particularly when they occur on primary elevations.
Together with their functional and decorative features such as
doors, steps, balustrades, pilasters, and entablatures, they can be
extremely important in defining the overall historic character of
a building. Their retention, protection, and repair should always
be carefully considered when planning rehabilitation work.


IDENTIFYING, RETAINING AND PRESERVING

1.   Recommended:

    -    Identifying, retaining, and preserving entrances -- and
         their functional and decorative features -- that are
         important in defining the overall historic character of
         the building such as doors, fanlights, sidelights,
         pilasters, entablatures, columns, balustrades, and
         stairs.

    Not Recommended:

    -    Removing or radically changing entrances and porches
         which are important in defining the overall historic
         character of the building so that, as a result, the
         character is diminished.

    -    Stripping entrances and porches of historic material such
         as wood, iron, cast iron, terra cotta, tile and brick.

    -    Removing an entrance or porch because the building has
         been reoriented to accommodate a new use.

    -    Cutting new entrances on a primary elevation.

    -    Altering utilitarian or service entrances so they appear
         to be formal entrances by adding panelled doors,
         fanlights, and sidelights.


PROTECTING AND MAINTAINING

1.   Recommended:

    -    Protecting and maintaining the masonry, wood, and
         architectural metal that comprise entrances and porches
         through appropriate surface treatments such as cleaning,
         rust removal, limited paint removal, and re-application
         of protective coating systems.

    Not Recommended:

    -    Failing to provide adequate protection to materials on a
         cyclical basis so that deterioration of entrances and
         porches results.

2.   Recommended:

    -    Evaluating the overall condition of materials to
         determine whether more than protection and maintenance
         are required, that is, if repairs to entrance and porch
         features will be necessary.

    Not Recommended:

    -    Failing to undertake adequate measures to assure the
         preservation of historic entrances and porches.


REPAIRING

1.   Recommended:

    -    Repairing entrances and porches by reinforcing the
         historic materials.  Repair will also generally include
         the limited replacement in kind -- or with compatible
         substitute material -- of those extensively deteriorated
         or missing parts of repeated features where there are
         surviving prototypes such as balustrades, cornices,
         entablatures, columns, sidelights, and stairs.

    Not Recommended:

    -    Replacing an entire entrance or porch when the repair of
         materials and limited replacement of parts are
         appropriate.

    -    Using a substitute material for the replacement parts
         that does not convey the visual appearance of the
         surviving parts of the entrance and porch or that is
         physically or chemically incompatible.

REPLACING

1.   Recommended:

    -    Replacing in kind an entire entrance or porch that is too
         deteriorated to repair -- if the form and detailing are
         still evident -- using the physical evidence to guide the
         new work.  If using the same kind of material is not
         technically or economically feasible, then a compatible
         substitute material may be considered.

2.   Not Recommended:

    -    Removing an entrance or porch that is unrepairable and
         not replacing it; or replacing it with a new entrance or
         porch that does not convey the same visual appearance.


NOTE:  THE FOLLOWING REPRESENTS PARTICULARLY COMPLEX TECHNICAL OR
DESIGN ASPECTS OF REHABILITATION PROJECTS AND SHOULD ONLY BE
CONSIDERED AFTER THE PRESERVATION CONCERNS LISTED ABOVE HAVE BEEN
ADDRESSED.

DESIGN FOR MISSING HISTORIC FEATURES

1.   Recommended:

    -    Designing and constructing a new entrance or porch if the
         historic entrance or porch is completely missing.  It may
         be a restoration based on historical, pictorial, and
         physical documentation; or be a new design that is
         compatible with the historic character of the building.

    Not Recommended:

    -    Creating a false historical appearance because the
         replaced entrance or porch is based on insufficient
         historical, pictorial, and physical documentation.

    -    Introducing a new entrance or porch that is incompatible
         in size, scale, material, and color.

ALTERATIONS/ADDITIONS FOR THE NEW USE

1.   Recommended:

    -    Designing enclosures for historic porches when required
         by the new use in a manner that preserves the historic
         character of the building.  This can include using large
         sheets of glass and recessing the enclosure wall behind
         existing scrollwork, posts, and balustrades.

    Not Recommended:

    -    Enclosing porches in a manner that results in a
         diminution or loss of historic character such as using
         solid materials such as wood, stucco, or masonry.

2.   Recommended:

    -    Designing and installing additional entrances or porches
         when required for the new use in a manner that preserves
         the historic character of the building, i.e., limiting
         such alterations to non-character-defining elevations.

    Not Recommended:

    -    Installing secondary service entrances and porches that
         are incompatible in size and scale with the historic
         building or obscure, damage, or destroy character-defining features.

                         END OF SECTION