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Mechanical/electrical systems, upgraded or installed anew, can have a serious mpact on historic structures and their contents. Since these disciplines are necessary to satisfy building codes and current tenants' requirements, minimum standards of procedure are essential, because, if done insensitively, this work can cause untold aggravation, horrendous cost overruns and even irreversible damage to original design and fabric. Two of these services are especially destructive to the fugitive organic materials found in most pre-1940 properties. They are unbalanced temperature/humidity levels, and light. Obviously, light is necessary to experience all human endeavors, but, whether manmade or natural, it will eventually cause deterioration from infrared and ultraviolet rays. One type of lighting can delay these inevitable effects. That is the completely different concept of glass fiber-optics functional architectural lighting. This paper offers criteria for employing this very energy-efficient, low maintenance, and discreet lighting tool to extend the life of architectural heritage.
Nomenclature and technical terms, introduction, general guidelines for architectural conservation, lighting for historic buildings and grounds, glass fibre optics: history, components, properties, applications, design, specifying, installation, guidelines for lighting historic venues, a case history, conclusion
Chairmanadjunct professor, BUILDING CONSERVATION INTERNATIONALDrexel University, PhiladelphiaPhiladelphia, PAPA