Gypsum toppings have a wide range of compressive strengths to fit any project specs from 2,000 – 4,500 psi. The toppings are ideal for all types of wood frame and concrete construction. Applications include multi-family, commercial and renovation. Toppings are approved for 1 and 2 UL hour fire ratings. They provide a smooth and dense surface for floor coverings ranging from carpeting to hardwood. Gypsum provides excellent sound dampening between floors and units for any new construction or renovation. As a fast setting underlayment, gypsum has a quick application and can be installed before drywall to simplify your project schedule.