Section Green Roof Thickness

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Section green roof thickness.

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 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. Traditional soil is heavy and packs tight after repeated rains reducing water retention and aeration. 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.

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. Growing medium is not the same material used for a house plant or a garden. Cross section of green roofing layers. Water is stored by the roof s substrate and.

Jul 4 2020 explore danica mihadavid s board green roof sections on pinterest. Green roofs can reduce stormwater runoff via water wise gardening techniques. Also the green roof drainage layer material is made to be sturdy and strong so that piercing can be limited and that the integrity of the entire program can be retained with ease.