Products / XeroFlor XF + FL System

XF + FL (XF + Fleece) is XeroFlor's ultra-light built-up green roof assembly, printed at 11 lb per square foot. The company calls it its least expensive system and the lightest, thinnest and easiest-to-install built-up system on the market, intended for projects with limited structural load capacity. The page's component schedule, the same one printed on every XeroFlor system page, lists LDPE root barriers (XF110 to XF140, 10 to 40 mil), drainage mats (XF225, XF240, XF275), retention layers (XF436, XF499, XF4130), the XF300 pre-vegetated sedum mat and growing media, with aluminum edging, a drain chamber, tapes and erosion netting as accessories.