Green Roof Thickness Dimensions

The green roof drainage layer thickness makes sure that nothing can go wrong below offering a solid and effective guard.

Green roof thickness dimensions. 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. By alan burchell rubyana lyon green roof mar 3 2017. The penthouse and second floor roofs will still be covered by the ballasted epdm roof. Types of green roofs.

25mm 1 thickness is standard for thin extensive roofs 40mm 1 5 is recommended for enhanced water storage and drainage on thicker extensive roofs and semi intensive roofs and 60mm 2 5 is available for maximum water retention on intensive roofs. Green roof components growing media water holding capacity field capacity maximum water capacity astm test. Minimum thickness in inches of green roof growing medium 3 inches 3 impervious roof area green roof area green roofs that meet minimum growing medium thickness requirements are permitted a dcia reduction equal to the entire area of the green roof. Each green roof is unique as their designs and performance vary by region climate and building type and use.

Moisture retained by media that cannot be removed aka wilt point 12 18 typ. If you want an intensive or extensive green roof a landscape garden a green wall located in an office building just noise insulation or to complete the ecological function of the green roof by installing solar panels we can provide projects system solutions estimates and consultancy in. Moisture retained by saturated media after free draining 40 60 typ. 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. There are two types of green roof. Three thicknesses of drainage plates are available to meet the drainage and water storage requirements of almost any green roof. Simpler shallower cheaper green roofs with limited variety of plants are called extensive green roofs these systems are easy to install require little to no maintenance or irrigation and weigh the.