Brent explores the history of sheet rock, tracing its development from the 1920s. He highlights the use of gypsum board and a fibrous material discovered in a 1928 house. The transition from wood lath to drywall is noted as a significant labor-saving innovation. Post-World War II, sheet rock becomes prevalent, alongside insulating boards for energy efficiency. Brent discusses the shift from plaster to sheet rock, inviting audience engagement.