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Historic Preservation - Technical Procedures

Spectitle:

Repairing Separation Of A Wood Handrail Seam

Procedure code:

0643006R

Source:

Hspg Prepared For Nps - Sero

Division:

Wood And Plastics

Section:

Stairwork & Handrails

Last Modified:

02/24/2012

Details:

Repairing Separation Of A Wood Handrail Seam



REPAIRING SEPARATION OF A WOOD HANDRAIL SEAM


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on repairing a separated
         seam in a wood handrail.

    B.   See 01100-07-S for general project guidelines to be
         reviewed along with this procedure.  These guidelines
         cover the following sections:

         1.   Safety Precautions

         2.   Historic Structures Precautions

         3.   Submittals

         4.   Quality Assurance

         5.   Delivery, Storage and Handling

         6.   Project/Site Conditions

         7.   Sequencing and Scheduling

         8.   General Protection (Surface and Surrounding)

         These guidelines should be reviewed prior to performing
         this procedure and should be followed, when applicable,
         along with recommendations from the Regional Historic
         Preservation Officer (RHPO).
   

PART 2---PRODUCTS

2.01 MATERIALS

    A.   Wood glue

2.02 EQUIPMENT

    A.   Screwdriver

    B.   Nailset

    C.   Chisel


PART 3---EXECUTION

3.01 ERECTION, INSTALLATION, APPLICATION

    A.   A separation in the seam between pieces of handrail is
         usually caused by a loose rail bolt.  The tightening of
         a rail bolt can be accomplished in place.

         1.   To disassemble the joint, unplug access hole to
              star nut.

         2.   Loosen star nut by tapping a screwdriver or nailset
              held against the edge of nut.

         3.   Pull joint apart enough to insert chisel.  Remove
              all old glue and varnish with chisel.

         4.   Reglue joint, especially the dowel.

         5.   Clamp joint by tightening the rail bolt and replace
              plug into access hole.

                         END OF SECTION