Portland library to undergo 21st-century makeover

Terms such as “curtain wall,” “solar chimney” and “urban screen” aren’t typically associated with libraries.

But they will become more familiar in Maine this spring, as the main branch of the Portland Public Library gets a glass-faced, audiovisual makeover aimed at attracting people to a building that is sometimes seen as sterile and uninviting.

Contractors are finalizing plans for enclosing the Monument Square facade and entrance in an expansive, metal-and-glass wall that will house a cafe, as well as library services. A 75-foot-tall glass tower near the entrance, dubbed a solar chimney, will warm air for the heating system on sunny days and trim fuel bills.

But the most striking feature may be the 30-foot-wide urban screen, which will broadcast video and audio feeds onto Monument Square. The outdoor video display will be the first of its kind in Maine, designers say, and is thought to be the first to be installed on any library in the country.

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