Thickness Green Roof Layers

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.

Thickness green roof layers.

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. Bauder sdf drainage layer material of the drainage layer polyamide monofilament weight of the drainage layer 400 g m. The basic anatomy of a green roof consists of vegetation growing medium filter membrane drainage layer waterproof root repellant layer roofing membrane support for plantings above thermal insulation vapor control layer and structural roof support. Protection drainage and filtration.

Extensive semi intensive and intensive green roofs. Each green roof is unique as their designs and performance vary by region climate and building type and use. Green roofs are typically not designed to provide stormwater detention of larger storms e g 2 year 15 year although some intensive green roof systems may be designed to meet these criteria. All three types of roofs require specific layers of roofing materials not found on regular roofs.

Types of green roofs. G 2 intensive green roofs have a growing media layer that ranges from 6 to 48 inches thick. Three types of green roofs exist. 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.

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. Most green roof designs shall generally be combined with a. 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. Comparison of the various green roofs an extensive green roof is characterised by its low weight a thin layer of growing medium green substrate a mix of plants adapted to conditions on the roof minimum maintenance and low installation costs.

By alan burchell rubyana lyon green roof mar 3 2017.