A green roof, or 'living roof' really helps regulate the temperature of a house or building, keeping it cooler in the summer and warmer in the winter. You can even graze your goats on them! Indeed: goats can climb ladders, they are quite agile!
French botanist Patrick Blanc is a pioneer in soil-free systems for growing gardens on indoor and outdoor load-bearing walls. Vertical gardens temper urban heat islands, improve air quality and insulate the building, reducing energy consumption.