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560 Barry’s Advanced Construction of Buildings
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Match existing. Use of materials and building techniques to match those used previously,
a continuation of tradition through colour, texture, application, scale and design
philosophy. Specialist publications and design guides are essential reference tools.
Contrast existing. Use of materials and building techniques to contrast with those used
previously, a break with tradition, through the use of new materials, contrasting textures,
new techniques, different scale and new design philosophy.
Both are sympathetic approaches which are usually successful, the philosophy adopted
depending upon the wishes of the client, town planners, designers, constructors, context
and the resources available. Done well, the building will outlive its custodians and will
probably be remodelled again in the future. Done badly, the value of the structure can be
affected negatively, and future alterations and maintenance are likely to be more expensive
than they should have been.
11.6 Retrofitting
Retrofitting is a term used to describe the addition of new technologies and products to
an existing building to improve its performance and/or functionality. Some common examples
are the addition of photovoltaic (PV) panels to existing roofs (Photograph 11.6), antitheft
and anti-terrorist measures, and addition of ramps to improve access to existing
buildings. The focus in this section is on upgrading thermal performance and upgrading
of accessibility, usability and comfort.
Photograph 11.6 Retrofitted PV panels to existing roof.