PRE-FACED CONCRETE MASONRY UNITS A. Comply with ASTM C 90 to provide[ lightweight][ medium weight], pre-faced, [hollow] [solid] concrete masonry units CMUs with manufacturer's standard smooth resinous facing complying with ASTM C 744. 1. 2. 3. 4. Products: Subject to compliance with requirements, provide Trenwyth Industries Astra-Glaze-SW+ units as distributed by the Upchurch Kimbrough Company, Houston, Texas (713-957-1520; http://www.upchurchkimbrough.com/) : Size (Width): Provide units manufactured to dimensions 3/8 inch less than nominal dimensions but with pre-faced surfaces having 1/16-inch-wide returns of facing to create 1/4-inch-wide mortar joints with modular coursing. Integral Water Repellent: Provide units made with liquid polymeric, integral water-repellent admixture that does not reduce flexural bond strength. Units made with integral water repellent, when tested according to ASTM E 514 as a wall assembly made with mortar containing integral water-repellent manufacturer's mortar additive, with test period extended to 24 hours, shall show no visible water or leaks on the back of test specimen. Colors and Patterns: [As indicated by manufacturer's designations] [Match Architect's samples] [As selected by Architect from manufacturer's full range].