Some great benefits of utilizing an expanded shale-blended soil mixture are that it absorbs h2o, drains very well, doesn’t compact, which is light. Commercial soil mixtures for green roofs are great if you'll find an outlet, but find a blend with locally readily available materials to avoid unneeded transport https://kamerondvlcu.ivasdesign.com/43931810/the-smart-trick-of-roofing-safety-guidelines-for-contractors-that-no-one-is-discussing