UltraShield Teak Composite Decking Boards. UltraShield Composite Decking can be installed for commercial and residential applications. An advanced premium shield encases all four sides around the inner core using recycled materials, giving the board ultra protection from moisture, mold, fade and mildew. UH07 Hollow Grooved Deck Boards require compatible decking clip systems (hidden fasteners) for installation. We recommend using the T clip system with Locking Clip (TC-1) and CEC Clip (TC-2) for easy installation.