Located in the heart of the Des Moines Western Gateway Park, the Des Moines Public Library appears windowless. But the striking feature of the building, designed by David Chipperfield Architects, is its 3,500m² glass façade. This optical illusion is created by an innovative application of two ordinary building materials, glass and metal.
During the day, the library looks like a big opaque copper box. However, occupants find themselves in a large open environment that allows plenty of vision out, daylight in, and achieves one of the best solar heat gain values on the market. .
specifically created OKATECH Copper, an insulating glass with an expanded copper inlay, for this project. The material is innovative as it is sustainable: OKATECH serves as a selective daylighting system that provides thermal insulation and sunlight protection for the freezing Iowa winters as well as heat and glare protection during the sweltering summers. Throughout the year, the need for heating, air conditioning, and artificial lighting is reduced, which results in excellent energy ratings in addition to lower energy bills.
To find out more about OKATECH: okaluxna.com/okatech
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