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In 1989, a temporary shelter was constructed to protect two mosaics in Cyprus. The structure was a prototype designed to cover certain categories of archaeological site. The concept behind the shelter was that it be lightweight, modular, easy to erect, relatively inexpensive compared with a conventional structure, and temporary if desired. The framework of the basic module has a zigzag profile and six sides: hence the name ‘hexashelter’. The hexagonal ‘footprint’ allows easy addition of modules by building laterally from anyone, or more, of the sides. It can also be built over somewhat irregular topography, and minimizes impact to the surface and to subsurface archaeology by using surface concrete anchor blocks as footings. The framework is aluminium tubing, covered with a fabric roof and with open-knit textile side panels. In 1991 essentially the same shelter was built at Fort Selden in New Mexico. The purpose of the second shelter was to evaluate its effectiveness. Quantitative data for the shelter in the form of ‘protective indices’ were determined by comparing meteorological parameters inside and outside the shelter, and temperature variability on two identical adobe test walls likewise under and outside the shelter. By restricting the use of data to paired observations on the sheltered and exposed walls it was possible to establish its performance in reducing (or otherwise) environmental variations within the shelter. Data were collected by means of a solar-powered autonomous meteorological station. Construction details of the shelter are provided.
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