Green Roof Drainage Layer Buy -

When selecting a layer, consider which technology best fits your project’s hydrological needs: Overview for green roofs - Minnesota Stormwater Manual

: A more cost-effective and lighter alternative to the standard GRS, designed for projects with lower water retention requirements (~0.042 gal/sq. ft.). : ~$380 at BlueStone Supply . Types of Drainage Layers green roof drainage layer buy

: A high-retention system specifically designed for green roofs. It features an inverted dimpled core that retains approximately 1.1 gallons of water per 10 square feet. When selecting a layer, consider which technology best

: ~$489 at BlueStone Supply or ~$422 at Best Materials . When selecting a layer

Several high-performance geocomposite drainage systems are available for purchase from specialized suppliers. J-Drain GRS (Green Roof Drainage System) - GRS Go to product viewer dialog for this item.