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In today’s episode Build Show expert Brent joins us to explore a remarkable reimagining of a classic architectural element—the double-hung window. Once dismissed for inefficiency and outdated design, Brent reintroduces this century-old concept with modern craftsmanship, durability, and sustainability in mind. Built in his Fort Worth, Texas shop, Brent’s “Hundred-Year Window” defies conventional expectations with its single-pane design, premium sapele wood construction, and historically grounded ventilation functionality. Through detailed demonstrations, Brent explains how traditional counterbalance systems and intelligent weather stripping elevate these windows to a Grade 40 performance rating. He emphasizes their longevity, serviceability, and energy efficiency—arguing that restoration often trumps replacement, especially in historic homes. With options like storm sashes and screen swaps for seasonal adaptation, Brent proves that these handcrafted windows not only honor the past but also meet today’s environmental and performance demands. Don’t miss this in-depth look at windows built to last generations.