Xero Flor America Inc.
Vegetative roof uses regionally grown, pre-vegetated mats to match roof vegetation with regional climate. Vegetation mats come in either 3/4-inch, 1-inch or 1-1/4-inch thicknesses and are pre-cultivated with low-profile, drought-resistant vegetation. Standard root barrier is a water-impermeable sheet of 20 mil low density polyethylene which can be increased to 30 or 40 mils if needed. Water retention fleece has saturated weight of not more than 1.5 lbs. per square foot.