Residential Green Roof For Slope

The most versatile of all is intensive green roofs which can host virtually all plants and be treated much like a garden.

Residential green roof for slope.

Basic green roof components include the base roof deck water proofing layer and green roof systems. You must address several structural concerns before you can embark on creating a green roof. With an extensive green roof vegetation is thinner 1 6 to five inches thick and lighter with appropriate plants that will make them low maintenance and self sustaining. The following is a summary of the basic green roof system components.

Most critical for a low slope roof is weight bearing capacity. Seed mixtures can be bought specifically for green roofs. Perhaps the most important benefit of green roofs is that they can reduce the amount of and improve the quality of stormwater runoff from a building site. The green roof will be composed of a liquid applied waterproofing membrane an inch thick root barrier three inches of insulation a 1 inch drainage mat with filter fabric and 8 inches of growth medium with an integrated cellular confinement system.

The soils of a green roof will capture a significant amount of stormwater which is absorbed and used by the planted material. We have chosen to use the word vegetative rather than the word green in this guide because a non vegetative roof could be considered to be environmentally green without being vegetative. The slab will be supported on nine steel columns with five girders and 45 beams situated to create the saddle like hypar roof shape. 2 extensive green roof.

Vegetative roofs also known as green roofs are thin layers of living vegetation installed on top of conventional flat or sloping roofs. Extensive roofs can weigh between 15 and. Residential green roofs such as theirs protect natural waterways from oily street residue by lessening the chances that municipal storm drain systems will overflow. A handy roof slope estimator can help you determine if your roof slope is likely too low for shingles.

Drainage thickness of growing media plant varieties etc. Sloped roofs retain less water in general and the moisture content varies from the ridge to the eave lowest edge of the roof. They may be flat or sloped. It is the task of the designer to make adjustments in the green roof system accordingly e g.

For semi intensive green roofs consider grasses shrubs small trees woody plants and herbs. Roofs at the lower end of the range about 4 12 to 6 12 are relatively easy to walk and work on. It also keeps the room below it warmer in winter and as much as 6 to 8 degrees cooler in summer thereby reducing utility costs. The majority of north american residential roofs have historically been constructed with a slope between about 4 12 and 9 12.