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HG 3616 - 1.6” Semi-Intensive DR Board
Our 1.6” Semi-Intensive Drainage / Retention (DR) Board is designed for semi-intensive vegetated roofs where water storage is required.
Specific to this product, it:
is a semi-rigid waffled plastic sheet that retains water within pockets on the upper side, making water available to vegetation
has drill holes to drainage channels for diffusion and irrigation
channels surplus water through its bottom-sided canal system for secure drainage
allows for the incorporation of a complete array of zone appropriate perennials and ornamental grasses; in a 6-12” depth assembly