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Historic Preservation - Technical Procedures

Spectitle:

Restoring Original Wrought-Iron Wall Luminaries

Procedure code:

1651001R

Source:

Us Custom House/Portland, Or - Gsa/Pbs, 6-28-91

Division:

Electrical

Section:

Lighting Fixtures

Last Modified:

02/24/2012

Details:

Restoring Original Wrought-Iron Wall Luminaries



RESTORING ORIGINAL WROUGHT-IRON WALL LUMINARIES


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on restoring and
         rehabilitating existing antique wrought iron bracket wall
         luminaries.

         NOTE:  THIS WORK SHOULD BE PERFORMED BY AN APPROVED AND
         EXPERIENCED LIGHTING FIXTURE RESTORATION OR CUSTOM
         FABRICATION CONTRACTOR.

    B.   This work includes preserving the original qualities of
         the existing fixtures and rehabilitating them for
         continued service as installed by repairing all damage
         and by retrofitting the fixtures with new electrical and
         lighting equipment.


PART 2---PRODUCTS

2.01 MANUFACTURERS

    A.   Saint Louis Antique Lighting Co.
         801 North Skinker
         St. Louis, MO  63130
         314/863-1414

    B.   Gibson and Gibson Antique Lighting
         180 Mace Street, #C9
         Chula Vista, CA  91911
         619/422-2447

2.02 MATERIALS

    A.   Wrought-iron and glazing to match the existing (St. Louis
         Antique Lighting Co., Gibson and Gibson Antique
         Lighting), or approved equal.

    B.   Electrical equipment to be "Specifications Grade",
         weather resistant, and low maintenance type.

    C.   Finishes:  Match original wrought-iron finish including
         two coats rust inhibiting ferrous metal primer.


PART 3---EXECUTION

3.01 PREPARATION

    A.   Surface Preparation:

         1.   Mark fixtures with a tag or identifying label to
              record the original location where installed;
              otherwise assume all risk for improper
              reinstallation.

         2.   Remove fixtures to shop and disassemble, exercising
              care to keep original parts together for
              reassembly.

         3.   Save original glazing for reinstallation after
              cleaning.

3.02 ERECTION, INSTALLATION, APPLICATION

    A.   Clean fixtures and parts to remove dirt, rust, and
         weathered paint.

    B.   Remove all loose rust by wire brushing, sanding, or light
         sand or bead blasting as required, but do not erode
         original metal, and "white metal" cleaning is not
         required.

    C.   Repair or replace any broken, missing, or damaged member
         matching original workmanship and fastenings.

         1.   Replace broken and missing glazing in kind and
              reinstall existing glazing with restored glazing
              clips and sealing compound as required, all glazing
              to be  washed clean.

         2.   Inspect and recondition or replace all fastenings,
              fixture mounting, hinges, and latches to restore to
              original strength and function.

    D.   Refit each fixture with new wiring, lampholder sockets,
         and lamps to restore the appearance and function for
         electric lighting.

         1.   Lampholder sockets to be weather resistant type,
              porcelain or heavy duty cast metal, with all brass
              sockets and contacts, provided with weather seal
              gasket as required.

         2.   Retrofit fixtures for long-life, energy efficient
              lamp types if available for this application and
              the appearance is acceptable to the RHPO, otherwise
              continue existing lamp type installation.

         NOTE: USE CAUTION AS SOME HIGH-INTENSITY LIGHTING
         PRODUCES HIGHER LEVELS OF HEAT THAN THE FIXTURE WAS
         DESIGNED TO ACCOMMODATE AND MAY REQUIRE ADDITIONAL
         VENTILATION OR CLEARANCE.  CONSULT EXPERIENCED LIGHTING
         PROFESSIONALS WHEN CHANGING THE TYPE OF LIGHTING IN A
         FIXTURE.

    E.   Finishes:  Repaint all metal to restore wrought-iron
         finish and to make all hardware match.

    F.   Reinstall restored and rehabilitated fixtures in their
         original locations using new fastenings as required, each
         permanently and vandal resistant mounted, plumb and
         straight, without looseness and movement, and flush with
         supporting masonry.

                         END OF SECTION