Vegetated Roof Design

In support of the city s broad interest in green roofs the cda has installed 529 385 square feet over 10 acres of vegetated green roofs at o hare including the first vegetated roof ever installed on an airport traffic control tower administration building.

Vegetated roof design.

Chicago is the green roof capital of the u s. Understanding your options vegetated roofs offer mutiple system types. A vegetated roof design green roof is defined as a roof membrane system with a top layer of living plants in an engineered soil blend growth medium. Locations where municipal stormwater retention codes or incentives drive the market.

5 vegetated roof version 2 1 2010 page 2 of 17 note. Vegetative roof assembly design must consider important additional factors such as the loads of saturated growing media and mature plants on building structure the effect of wind and erosion on lightweight growing media elevated above normal grade the temperature of the growing media around plant root systems the depths of the growing media. There are many types of vegetated systems available in today s market. Green roof systems are also referred to as vegetated.

Projects where the roofer is the vegetative roof installer. Maintaining vegetative roof systems. For more details the ansi spri vf 1 fire design standard for vegetative roofs may be downloaded free of charge from grhc or spri. Vegetated roofs typically include a vegetation layer growing medium retention layer drainage and a root barrier.

Va deq stormwater design specification no. Vegetated roofs a vegetated roof from tremco is one of the most environmentally responsible attractive and cost effective solutions available to the meet the swelling demand for sustainable facility construction and management. This is a great day for the green roof industry and the environment said kelly luckett chair of grhc s technical committee and president green roof blocks. Just like any aspect of building design the success of a vegetative roof is directly related to whether the roof is properly maintained.

System components include a membrane protection layer drainage layer filter layer and a root barrier between the soil and roof membrane. Regular roofs that suffer from leaks and other types of damage often occur due to a lack of proper care. High above the ground vegetated roofs mimic nature helping clean the air cooling down temperatures keeping rainfall onsite and alleviating pressure on urban stormwater systems.