InTrans / Aug 14, 2018

National Historic Covered Bridge Preservation Research: Fire Retardant Treatments for Historic Covered Bridges

Keast & Hood Co. along with their subcontractor Mississippi State University developed and implemented a multifaceted scope-of-work aimed at increasing the fire retardancy/resistance and durability of historic covered bridges. Representative “third generation” fire retardants were used to treat samples of southern yellow pine, yellow poplar and white oak. This study shows that commercially available fire retardant treatment of representative species found in historic covered bridges provides an effective means of increasing fire retardancy.