The roof (roof) on the garden, all garden elements are supported by the structural constraints of its roof, not free to use garden elements - digging Lake mountains pile and transform the terrain - to create. However, the roof garden (green), after all, is that people on the ground From the use of gardening practices, and may use the general structure landscape gardening practices, and create a beautiful green environment; the same time, which has also been condescending, narrow space, surrounded by walls of the building restrictions. Separated from the earth to contact the roof garden (green) compared with the garden on the ground, both with its favorable advantages, but also its downside.
roof gardens (green) is completely built on artificial Roof garden (green) and various species of plants must be grown in artificial soil, while the synthesis between the earth and planting soil and cut off by buildings. The basic elements of plant growth - water supply is limited, can not use underground water supply plant through the effect of capillary rise, this change in the environment of plants, irrigation problems by no means just a plant, it will affect the roof of the robust growth of flowers and trees. Thus, in the flowers and trees grow well on the ground, transplanted to the roof (roof) on the survival rate may affect its survival. Various plant growth characteristics need to select the suitable environment for the growth of plants the roof. Roof Garden (Green) the growth of plants directly affect the roof garden (green) effects, and therefore increase the difficulty of its construction and difficulties.
the carrying capacity of the building, subject to the roof garden (green) under the columns and foundation slab, foundation, load-bearing force. As a direct impact on capacity building structure the level of housing costs, so every square meter on the roof loads are allowed to be restricted. That is the roof garden (green) in the soil can control the average load within a certain range. Which is most directly affect the thickness of planting soil. Layer thickness of planting soil moisture capacity size. Thin the planting soil, if not balanced artificial rain or watering, the soil vulnerable to rapid drying of plant growth and development disadvantage. Roof garden (green) and thin planting soil, but also in building height under the Forest by the outside temperature changes will have an impact on the planting soil, and came from the lower part of the building structure both hot and cold temperature changes, will of planting soil temperature. Obviously, the roof garden (green) planting the planting environment, soil formation, growth and development of trees, flowers far from the ideal conditions required.
green roof form
into plants, substrate, rockery, flower beds, water, Park Road, sculpture, scaffolding and so on.
1. plants: selection of plant short, shallow root system of plants, deep roots of the tall trees, crown large, but big wind on the roof, the soil layer is too thin, easy to be blown down. If thicker layers, hard to increase weight. Moreover, the trees will be developed root system are often made deep grave rolling waterproof layer leakage. Therefore, the roof garden should be used generally relatively low, shallow root system of plants. There are the following categories.
herbaceous flowers? such as geraniums, tuberous begonias, hyacinths, tulips, chrysanthemum beefy, calendula, chrysanthemum, carnation, sage, nasturtium, impatiens, cockscomb, dahlias, whole fish grass, daisy , kale, aster, amaranth, mimosa, Mirabilis, poppy, canna, day lily, iris, peony, orchids, onions.
lawn and ground cover plants are commonly used velvet grass, wood sorrel, saxifrage and so on.
Maple shrubs and small trees, Berberis, nandina, crape myrtle, hibiscus, Lagenaria, bloom, rose, roses, camellias, osmanthus, peony, incense knot, flat sticks citrate son, octagonal gold plate , Admiralty flower, gardenia, Hypericum, hydrangea, jasmine, Di Tang, Qi shoot, pomegranate, Serissa, Viburnum and so on.
ivy vines such as the ocean, Niao dill, morning glory, wisteria, wood, Peak, vine roses, honeysuckle, rattan and other evergreen Yau Ma Tei.
dwarf fruit trees and vegetables, apples, kumquats, grapes, kiwi, strawberry, cucumber, gourd, lentils, tomato, green pepper, onion and so on.
2. matrix: the matrix used in green roofs and other green substrate is quite different, requiring adequate fertilizer, but also lightweight class. In order to fully reduce the load, the soil layer thickness of the eye should be kept to a minimum degree. General planting grass and other ground cover plants need soil thickness of 10-15 cm; low, flower planting, soil to be 20-30 cm in thickness; shrub 40-50 cm soil depth; small trees 60-75 cm soil depth. Between the lawn and shrubs to the slope transition. Following categories:
organic resin foam products (bulk density 30 kg / cubic meter) plus one volume of 50% humus.
cavernous hole foam (dry bulk density of 23 grams / cubic meter) plus one volume of 70% to 80% of the humus.
swell perlite (density of 60 ~ 100 kg / cubic meter, water again after 3 to 4 times) 50% of the volume of added humus.
vermiculite, coal slag, rice husk (bulk density 300 kg / cubic meter).
small plastic hollow particles increases humus.
wood humus which is currently the larger, and because the economy of a matrix. Wood chips were generally 7 plus 3 copies of ordinary soil or humus.
3. rockery: roof garden stone home with open field compared to the garden rockery project, which is used only for independence or a subsidiary of the landscaping layout, can only view can not swim, which is the tour for the Landscape main purpose. Because of limited space on the roof, but also by structural load-bearing capacity, it should not be significant in the roof construction of large debris can travel to work as the main material of the rockery. Therefore,UGGs, on the roof garden should be set only to watch the main volume of the fine small and scattered stone home. Characteristics can be set on the home, such as scattered layout and group home approach, combined with the use of roof garden, environment and space, the use of rocks as decorative pieces foil garden space and buildings, plant means. Independent general small footprint beautiful stone home, because it is concentrated load,UGG boots, the position of the beam should be combined with the roof structure. In order to reduce the load on the roof, the construction of the larger rockery stone,Discount UGG boots, the more use of plastic fake rock approach. Stone plastic molded cement mortar used steel wire or glass fiber reinforced plastic molding.
4. Water: all water project is an important part of the roof garden, form different pools, cascading, fountains, and planting ornamental fish ponds and water pools provide limited space for the roof watching the scene.
5. Yuen: roof garden and water than plants grown in vitro, large quantities of road and pavement space. Road, paving is done on the roof slab, insulation layer and waterproof layer on the surface layer. Surface structure and structural practices under general determined by the building design, roof garden Road, pavement should not destroy the original roof water drainage system under the premise of the special requirements of the roof garden with paved surface layer of the design and construction.
6. Sculpture: roof garden set in a small amount of people, animals, plants, rocks image and the image of the abstract geometric sculptures, you can mold the sentiment of visitors to beautify people's hearts, is more meaningful than the average garden ornaments. To enrich the garden roof garden mood, eclectic selection of themes, vary in shape, depicts the image of the abstract can be naturally expressed serious themes can be romantic. Under the roof of the space environment, nature scenes can also use the sculpture garden on behalf of flag. Sculptures in the roof should pay particular attention to their specific space environment, a specific viewing angle and position. Must not be in isolation of sculpture itself, from its position at the roof garden of the plane, body mass size,UGG shoes, color, texture and background, and many were fully taken into account, they can even consider its orientation towards and sunshine, light ups and downs, lighting changes and exposure to artificial light at night angles.
7. scaffolds: mainly used for shade or climbing plants of the matrix.
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