Inaccessible Green Roof

The cost of a green roof varies considerably depending on the type and factors such as the depth of growing medium selected plants size of installation use of irrigation and whether they are to be accessible on inaccessible intensive semi intensive or extensive.

Inaccessible green roof.

You must determine from the outset whether the added weight of the plants will be something the roof can withstand. You should also find out whether there are any council or municipal vegetative roof restrictions. Rollins said there are now 30 different types of green roof systems on the roof taking up 30 000 square feet. It is made of a waterproofing layer a root barrier a drainage system and growing medium for the plants.

With vegetation and full saturation expect the roof to weigh another 20 pounds per square foot of additional weight. The basics a green roof is simply one that fosters the growth of vegetation. Merchandise lofts toronto large accessible green roof which includes a 150 prairie meadow a wetland garden and birch trees all growing on soprema s sopraflor growing medium nourished by an in ground irrigation system green roofs for healthy cities 2000. Finally the extensive green roof is a system that is generally inaccessible to pedestrians.

Not all green roofs are planned as usable space and some only provide access for periodic maintenance. A green roof that is accessible can be a desirable amenity for building occupants but it must also comply with life safety codes. The movement of people is limited to maintaining a watertight roofing membrane and the health of the plants. We make sure they remain successful landscapes for years to come.

York university computer sciences building toronto largely inaccessible green roof built mainly to help retain stormwater mcminn 2001. Generally the soil must be three to four inches thick and composed of a special lightweight growth medium that is 30 percent organic soil expanded clay pellets wood chips and vermiculite. There is room to expand to one acre which is their goal for about a year from now.