Fires in modern structures tend to reach flashover ________ than in older structures.

Fires in modern structures tend to reach flashover quicker than in older structures due to several factors related to construction materials and methods. Modern buildings commonly utilize synthetic materials, lightweight engineered wood products, and open floor plans, which can contribute to faster fire spread. These materials often have lower ignition temperatures and can release heat and gases more rapidly than traditional materials like solid wood and masonry used in older construction.

The increased prevalence of combustibles, such as furniture and decorative items made from synthetic materials, also accelerates the rate at which a fire can develop and reach flashover, the point at which the entire room becomes engulfed in flames. This phenomenon highlights the importance of firefighters understanding the dynamics of modern fires, including how rapidly they can escalate, in order to effectively strategize their response and ensure safety.