Section Green Roof Thickness

Green roofs can reduce stormwater runoff via water wise gardening techniques.

Section green roof thickness.

Green roofs play a significant role in retrofitting the low impact development lid practices in urban areas. The green roof drainage layer thickness makes sure that nothing can go wrong below offering a solid and effective guard. Traditional soil is heavy and packs tight after repeated rains reducing water retention and aeration. Cross section of green roofing layers.

Water is stored by the roof s substrate and. 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. A study presented at the green roofs for healthy cities conference in june 2004 cited by the epa found water runoff was reduced by over 75 during rainstorms. See more ideas about green roof roof roof garden.

Each of these layers has a specific function and is necessary for the success of the green roof. 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. The nominal thickness of a green roof is the approximate total height of the soil and drainage components that constitute the green roof system excluding the roof structure insulation waterproofing and plants it is common practice to use the term extensive to describe green roofs that are very thin and will only support hardy drought resistant vegetation.