Green Roof Factors

A green roof also known as a rooftop garden or a living roof is a vegetative layer grown on a rooftop.

Green roof factors.

02 02 2015 take control of these factors to curtail environmental impacts and reduce energy and lifecycle costs on all roofs extra protection for walkways on the roof right is a significant factor in service life and lifecycle cost. You do not need to mow a green roof and most are fairly low maintenance. A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane it may also include additional layers such as a root barrier and drainage and irrigation systems. A general understanding of the bioregion species requirements and planting can help inform clients which system makes the most sense.

Equally important in plant selection is the purpose of the green roof and the reason for installing it whether it is storm water management energy conservation heat island reduction aesthetics or a combination of these factors. Green roofs or living roofs have become popular over the years. When designing a green roof there are several factors to take into consideration. The variability of green roof designs and climates in the united states makes it impractical to list every possible plant candidate for extensive green roofs.

What is a green roof made of. The exact length of time depends on many factors such as the type of green roof climate and building type. As a general rule potentially suitable species can be found by looking at the microclimate media depth solar levels water availability etc of the green roof in question and. Efficient irrigation is not expected to decrease stormwater benefits of green roofs since lusher vegetation and moister soils provide greater evapotranspiration.

You can choose from a menu of landscape credits for various features including green roofs rain gardens vegetated walls and trees and shrubs. The popularity of green roofs has increased in the united states due to their many benefits while pretty green roofs serve a much greater purpose than simple beautification. This is because they provide ecological benefits aesthetic value and creative urban architecture. How long do green roofs last.

Container gardens on roofs where plants are maintained in pots are not generally considered to be true green roofs although. Unlike traditional black tar roofs green roofs reduce energy costs by absorbing heat instead of attracting it and. Green roofs often outlast conventional roofs by many years. Soil structure for green roof media.

Green roof growing media is an integral part of a functioning. 6 factors to assess green roofs. Biodiversity is also closely tied to everything from water management to insulation. If your project is required to meet the seattle green factor you must reach a minimum score established by the zoning of your property.

Intensive green roofs almost always need a permanent irrigation system depending on factors such as project goals and plant palette. Insulation boards below should be staggered so edge seams are covered.