Green Roof Weight Per Square Foot

Medium depth green roofs that usually use more substantial grasses perennials or smaller shrubs.

Green roof weight per square foot.

The lite system is typically used on retrofit projects when the roof is engineered with only 15 to 17 pounds per sf for the green roof component. Semi intensive systems generally weigh between 25 and 40 pounds per square foot when dry. They are typically constructed in layers but can also be installed using a tray system. The soil or grow media substrate layer is usually 150mm to 300 mm.

They support hearty native ground cover that requires little maintenance. Installing a green roof starts at around 10 per square foot for simpler extensive roofing and 25 per square foot for. Per square foot average being about 30 lbs. Extensive green roofs are relatively light at 15 50 pounds 7 23 kilograms per square foot.

Semi intensive green roofs require a bit more maintenance since the plants tend to need pruning irrigation and fertilization. Approximately 12 pounds per square foot what it is. Green roof cost per square foot. Installing a green roof costs between 10 and 30 per square foot most homeowners pay within this range but costs could run up to 50 per square foot while not common for residential roofs some designs end up costing 200 or more per square foot.