General Notes For Green Roof

Figures 1a 1b green roof district department of the environment offices washington d c.

General notes for green roof.

General condition of growing media at time of planting. General notes roof plan 1. General notes general project information plan check no. Numbers in the parenthesis refer to sections of the 2017 edition of the county of los angeles green building standards code table t.

Green roofs play a significant role in retrofitting the low impact development lid practices in urban areas. As a note for vegetation the soil for a green roof should have a ratio of 70 percent inorganic material and 30 percent organic material. Water is stored by the roof s substrate and. Low nutrients and lightweight substrates are a good combination for a green roof and its vegetation.

The green roof atop chicago s city hall is one of the most famous combining elements of both intensive and extensive green roof segments as well as a semi intensive system on one 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. The roof is to perform under category 5. This green roof demonstration project on the asla headquarters was envisioned to show the environmental benefits of green roofs as well as to showcase what landscape architects contribute to this project type.

Instructions the following notes must be included on the plans. Explore the green roof watch video image galleries tour the green roo. Design notes intensive type growing media depth between 6 inches to 4 feet. Green roofs can reduce stormwater runoff via water wise gardening techniques.

The green roof creates pervious area. Free of stones 1 2 inch or larger in.