Roofscape® RND 1.0 (Retention & Drainage) is a 1″ thick semi-rigid waffled plastic sheet designed for retention & drainage on extensive vegetated roofs requiring moderate water storage.
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 drought tolerant plantings; in a less than 6” depth assembly.
Extensive vegetative roofs using a complete array of zone appropriate drought tolerant plantings.
Overlap boards by one cup
Cover boards with overburden immediately to protect from UV rays & wind uplift