The dismantel, cleaning and rejoining of joints and
elements is the preferred method of repair for weak and broken assemblies.
Welding, though easier to perform, cannot work at all junctures,
particularly where there us a small difference in section between the two
pieces being joined.
The original methods of assembly are the only one that will be most
visually compatible with the metal work and offer similar performance.
Modern welds also tend to set up corrosion cells, which can eventually
destroy the points they were intended to repair.
When work is assembled, care should be taken to ensure that mating surface
as well as visible surfaces are protected by paint, and that suitable filler
is applied before the work is assembled.