American Gypsum's Exterior Soffit Gypsum Board also improves thermal and acoustic performance, contributing to overall building comfort and energy efficiency. Designed to integrate seamlessly with joint compounds, fasteners, and finishing systems, this board simplifies finishing work while reducing the risk of cracking or edge damage. Its consistent quality and dimensional stability make it ideal for continuous soffit runs, soffit overhangs, and other exterior ceiling applications where durability and visual appeal are equally important.