Since some of the individual double

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On the interior surface, recovered pine—older than a century—from the Idaho Lakes were laminated so the interior surfaces of the windows would match the existing woodwork in the building. Sashes were glazed with laminated insulated glass (IG) units with low-emissivity (low-e) coatings to improve the energy efficiency, security, and sound transmission.

-hung windows were about 2 m (6 ft) wide by 4 m (13 ft) tall, the sashes rcs data weighed in excess of 115 kg (250 lb). Gentleman’s team engineered a system of weights and pulleys to make the massive windows easy to open.

A combination of historic metal and modern weatherstripping was incorporated in order to seal the operating windows, which produced an impressive outcome. After an independent agency tested many of the installed windows for air and water infiltration, they were shown to be twice as tight as the published ratings for modern replacement windows.