Flow-Thru Gravel Stops and Drain Bars provide a method to terminate the roof, and allow water to flow over the edge, while retaining gravel or stone ballast on the roof. Most commonly used at a gutter or low roof transitions, Flow-Thru Gravel Stop and Drain Bar are furnished in 12’-0” lengths of mill or pre-finished aluminum (other architectural metals available upon request) that is perforated or slotted for proper water flow and gravel or ballast retention.
In addition to our full line of stock standard items, ATAS International offers a wide range of custom fabrication capabilities to fit any project’s needs. Radiused sections and accessories including miters, T-miters, end caps, and end closures are available for all perimeter edge products. Options include fabricated and sealed or welded and PVDF painted to match. Available in over 30 PVDF stock colors, our products come equipped with industry expertise and technical support, including design and development assistance, product specification guidance, and installation support.
Details provided allow for typical expansion and contraction values of the metal cladding materials as provided by ATAS International, Inc only. Allowance must be made for additional sub-structure movement based upon materials used and overall project design.