MoistureShield® offers the only composite boards in the industry that can be installed on the ground, in the ground or underwater without any structural performance issues. Coastal, a subsidiary of Oldcastle APG, a CRH company, has been in the concrete products business since 1965 and is recognized as the premier manufacturer and distributor in Florida for Masonry and Hardscape products. From design and specifications to exceptional customer service and delivery of your products, the Oldcastle APG team is committed to the success of your projects.