Thirty dichroic glass fins, each eight metres long, stand proud of the cladding of this refurbished office building that overlooks the north side of the famous Foyles bookshop. Each fin if only 30cm wide, but they respond continually to the changing light conditions. In full bright sunlight they appear as shown here, and from the inside show a variety of dazzling colours depending on the angle of your viewpoint. Thus, potentially, each fin will reveal a slightly different colour both from inside and outside.
The north side of the building has ten of these tall thin fins, and can be seen from a number of different vantage points. Sometimes they appear red, and at other times blue, and at other times gold.
These fins are made with a dichroic film laminated between two layers of glass, which is the least expensive way of manufacturing this type of glass. Technically these are quite difficult to make as the film is extremely delicate.