Drainage Green Roof Section

A solid sheet of 20 mil 0 51mm 100 post industrial polystyrene regrind.

Drainage green roof section.

Green roof cross section. Provides two sided drainage. Unlike conventional earth covered structures garden roof assemblies are lightweight and can be installed on a wide variety of new and existing structures. Geotextile fabric layer is used to separate drainage layer and plants growing.

Drainage layer on the roof garden is used to quickly discharge the rainwater from the vegetation layer into the drainage system as well as to collect excess water. Before commercial drainage layers were developed it was common practice to use a thin layer of gravel to act as a drainage layer. Primary roof drainage systems may use. This is for roofs that meet or exceed the epa green roof section which is a modular system using trays that allow for 4 inches of growing medium.

Each roll is 4 wide x 100 long 400 square feet roll. The guide gives rational to the whys and hows of allowing free drainage. Check whether the site has primary and or secondary drainage systems. Liveroof has developed the following technical detail drawings for use in plans and to accompany specifications.

Replacing the impervious surface of a conventional roof with. Sites for green roofs should be assessed for drainage. One of the main concerns that small scale builders have outlined to us is how to drain the roof. Here you may find the cad drawings of complete optigreen green roof setups.

By continuing to browse this website without changing the cookie settings of your internet browser you agree to our use of cookies. How to drain the roof. Grs drainage products typically fit into a green roof system above the grs root barrier and below the grs filter fabric. Box gutters for near flat roofs or eaves gutters for pitched roofs simple waterspouts also known as scuppers outlets or box drains built into the roof.

Depending on regional precipitation rates and the water retention goals for your specific project green roof solutions has a full range of products to meet your needs. For this reason udfcd recognizes green roofs as a volumetric bmp able to capture the wqcv for the area of the green roof without constructing a controlled release at the outlet. Garden roof assembly hydrotech s garden roof assemblies combine the proven performance of our monolithic membrane 6125 roofing waterproofing with proven green technology. When choosing the right drain component a number of our products can easily be incorporated into your greenroof.