Elevate SkyDrain Sheet serves as the required substrate and drainage panel for all Elevate SkyPaver™ Composite Roof Pavers installations. SkyDrain consists of a 40% recycled polypropylene drainage core, with geocomposite fabrics thermally bonded to both the top and bottom. The high compressive strength of the SkyDrain core enables outstanding water flow even when the paver area is in constant use, and the two geocomposite fabrics allow for differential movement between the roofing membrane and the SkyPaver system. SkyDrain lays flat when unrolled and comes with pre-manufactured 3" (76.2 mm) fabric overlaps at all ends and edges, enabling fast and easy installation. SkyDrain may also be used with certain SkyScape Vegetative Roof System installations, when approved for this use by Elevate.