Inside the Blueprint travels to Alexandria, Virginia, to discover how a hotel builder managed to figure out how to keep the outside noise of the roaring D.C. Metro train line from disturbing guests -- before ground had even broken on the project.

St. Cloud Window, a second-generation women-owned business founded in 1952, was the company that completed this monumental task. A leading designer and manufacturer in aluminum windows and door products for more than 60 years, St. Cloud created six inches of space between insulating and attenuating glass to ensure maximum comfort for hotel guests. As any traveler knows, no matter how good the continental breakfast or how cozy the bed, if outside noises keep you awake at night, the chances of a return visit to a hotel are slim to none. St. Cloud Window provided a highly effective solution to a complicated project.