Provide social benefits
Green roofs expand the usefulness of buildings via patios, gardens, and vistas. Planting gardens, both at ground level and in the sky, provide not only great spaces for relaxation and enjoyment but also are great to look at! Green roofs provide benefits to building performance, the people in and around the buildings, the cities they are in, and the fauna who depend on plants and soils to support their life cycles.
Rooftop garden building process
Design & Plant selection
We take into account the rooftop's sun exposure and hardiness zone. Most rooftop gardens get a lot of sunlight and are potentially very hot, during the day, drought-tolerant plants are recommended. Some good rooftop plant choices would be plants with limited root systems, that don't need a lot of soil, such as herbs and vegetables, and smaller to mid-sized perennials. Trees and shrubs require more soil and larger pots, but you need fewer of them to make an impact.
Waterproofing is arguably an essential prerequisite for a green roof. The primary function of a roof is to keep the building dry, and therefore this layer serves as a crucial defense against penetration of rainwater into the building. If at all you are planning to have a garden on your terrace, you need to have waterproofing done. Waterproofing can be easily be done by the application of waterproofing polymer coating on concrete slab/surface.
The primary purpose of the drainage layer is to drain excess water or underflow as rapidly as possible to prevent prolonged saturation. The drainage medium is applied above the waterproofing system and consists of a rot-proof material that allows the water to flow through to the substrate drains. This is a critical component, which must be compatible with the filter fabric and the planting medium. Successful roof drainage systems reduce the blockage of water to the substrate drains and assist in the elimination of excess water on the system.
Geo Textile / Soil filter
To prevent clogging of the drainage or water storage layer a geo-fleece is used to filter out the silt from the planting medium above. The filter layer prevents the fine material from washing down into the drainage layer. Nonwoven filter layers are ideal for most circumstances.
The soil should be rich, lightweight, well aerated and have adequate water retention capacity. Once all these layers are correctly established, all kinds of ornamental plants can be grown in soft-scaping viz, lawn, ground covers, seasonal flowers, flowering, and foliage shrubs, small to medium trees, cacti, and succulents, etc.