Green Roof Demensions
Intensive roofs which are thicker with a minimum depth of 12 8 cm 5 1 16 in and can support a wider variety of plants but are heavier and require more maintenance and extensive roofs which are shallow ranging in depth from 2 cm 13 16 in to 12 7 cm 5 in lighter than intensive green roofs and require minimal maintenance.
Green roof demensions. The growing medium varied from a depth of 3 inches for the extensive plantings to 24 inches for the intensive plantings and the semi intensive areas averaged 8 inches in depth. Some advantages of green roof systems are. Waterproof membrane in many retrofit cases this layer already exists and depending on it s condition water tightness it may or may not need replacing. Improve quality of air to a great extent.
Installed the most green roofs in north america this past year with 1 326 872 square feet. There are two types of green roof. Standard sizes for the grs edge restraints are 3 tall up to 8 5 tall in 0 5 increments. Make a healthy contribution towards landfill diversion.
Vegetative roofs are divided into two categories. Create space for new amenities. Starting from the existing roof deck and moving up the typical layers of a green roof system are. Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure.
In 2012 the north american green roof industry recorded 982 green roof projects which was a 24 increase from 2011. Help improve the aesthetics in urban building constructions. As a semi intensive green roof a combination of 20 000 herbaceous plants 112 shrubs and 2 trees were planted. 1 extensive vegetative roofs which are 6 inches or shallower and are frequently designed to satisfy specific engineering and performance goals and 2 intensive vegetative roofs which may become quite deep and merge into more familiar on structure plaza landscapes with promenades lawn large perennial plants and trees.
Help with moderation of urban heat island type effects. Green roofs can help reduce energy costs for a building by acting as another layer of insulation between the inside and outside of the roof. The intensive green roof system is a modern concept allowing people to be present and enjoy in the environmental friendly way of bonding with all the plants and trees present. One can execute efficient storm water management with green roofs.
This is most noticeable in intensive green roofs since there is a thicker and more consistent layer of soil which provides a higher insulating value. Courtesy of the city of chicago.