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Green roof media is arguably the most critical layer for a successful green roof project. This is not topsoil that we are providing, rather a blended lightweight growing media that is specifically designed for use in green roofs. We work with media blenders across the country to provide regionally specific media for your area, close to your project.
Depending on your project, we offer media in three different packaging options. We can ship you loose, bulk media if you have access to bring the media up to the roof using a blower truck or other method that is compatible with loose material. We can provide super sacks that hold 1.5-2 cubic yards of material. These are hoisted using a crane and emptied on the roof. Lastly, we can provide 1-1.5 cubic foot bags that are stacked on pallets and are able to be carried one at a time for roofs that are more difficult to access. Exact size within the range for super sacks and small bags varies by region. Please contact us for quotes and sizes.
GRS Media Categories
Extensive (less than 6 inches). Engineered for extensive green roofs with a media depth of 6 inches or less. Suitable for shallow rooting green roof plants such as sedum, sempervivum and other drought tolerant species. GRS Extensive is our lightest media blend for green roof systems requiring less than 45 lbs of saturated system weight. High porosity allows the media to retain moisture in a storm event. This characteristic promotes detention of up to 90% of a 1″ event during a 24 hour period for a 4″ profile depth.
Semi-Intensive (6-12 inches). Semi-Intensive systems are typically characterized by Media depth typically between 6" and 12". A Slightly wider choice of vegetation than Extensive roofing systems, including grasses and deeper rooting perennial flowers. May require irrigation. Heavier growing media component–7 to 8.5 lbs per inch of depth per sq ft.
Intensive (more than 12 inches). GRS Intensive Media is blended to support growth of a wider variety of plants in the green roofing and roof garden environment. The intensive green roof is generally a green roof system that can support shrubs and trees and the widest variety of plants in a roof garden. The media for these types of projects range from 12″ deep to many feet.
Turf (6-12 inches). GRS Turf Mix is our blend of media for green roof turf applications. We use higher organic content for turf lawns that require more nutrients and moisture content than sedum green roof plants. Our Turf mix has a higher porosity than grade landscape mix because too much moisture retention is bad for roof top lawns that require irrigation. Similar to Semi-Intensive systems, Green Roof Turf systems require at least a 6 inch profile depth because grasses are relatively deep rooting plants.
This media is a blend that is specifically designed for use in rooftop vegetable gardens and rooftop farming. As with all of our media, we use regionally specific components and blends depending on what part of the country your project is located and your specific needs.
This media is a mix that is higher in organic content and is perfect for raised planters that will be supporting heavier feeding plants like trees, shrubs, and many annuals and perennials.
GaiaSoil - Lightweight Green Roof Media
Green Roof Solutions works with the Gaia Institute to offer a very unique green roof media that is extremely lightweight and helps to divert styrofoam from the waste stream. The bulk component of the media is recycled polystyrene which accounts for the extremely lightweight nature of the product. Contact us for more information.
Media blenders coverage across the United States.