With innovation and modernisation, a lot of land has been developed leaving very little outdoor space for gardening. The roof top thereby provides an unused and ideal space to benefit from all the gardening virtues. In most urban areas, roof top gardening has provided an ample outdoor living space.
Being a very simple do-it-yourself process, it is worth embracing because of the following;
Secondly, work out on the best way to access the roof top. It is usually advised to seek services of an architect or a roof top garden specialist for advice.
Again, by employing the services of a designer, find out the best layout for your garden. The designer will also help on the best flooring to employ, stones to use and the decking. Materialse.g. fibreglass or form planting containers and plastics are encouraged to pavers
At this time the planting scheme should have already been worked out. This is through plant selection best suited for natural light, area humidity and wind. If with any doubts, consult with a planting expert or even a landscape designer.
Now get the containers and furniture with the size dependent on the type of plants and integrate them well with the planting scheme. Remember they should be stable and lightweight
By installing an automatic irrigation system, garden watering worries during hot weather should be a thing of the past. Alternatively consider a water storage system or if it’s easier to access your rooftop garden, the cheap and simpler method of carrying water up the roof in buckets can also be employed though not very effective.
Consequently, since it is usually very windy on the roof top, it is a good idea to consider windbreaks that will disrupt the flow of wind rather than those that will try to stop it completely e.g. trellises and latticed windbreaks. Solid windbreaks that do not allow some wind flow are not encouraged since they will be knocked down easily by very high winds. Also, wind flow should not be eliminated but reduced.
With only three cultivars of sedum for the creation of rich tapestry (red and gold), and an approximate roof top space of 5 by 8 feet and free draining light soil, your rooftop garden will be of thick succulent foliage within a short time span
Measuring with the size of the roof cut a piece of marine quality plywood and cover with a plastic liner. Nail it firmly to the roof and create approximately two inches deep wooden planting frame on top through fastening of wood planks to roof edges thus creating a sturdy framework.
With Perlite, Insulation and General Compost mix fill the frame. Ensure good drainage by drilling holes into the bottom edge of the wooden frame and remember to push insulation into these holes so as to prevent filter material from draining too. Styrofoam peanuts is another good alternative for creating drainages
Into the growing medium, plant the sedums. Since they (sedums) don’t like wet roots, clear the roots that might have fallen on the plants during winter and ensure that the drainage holes are open. Alternatively, consider purchase of sedum roof mats that can easily be rolled out and attached. Always confirm with designers and engineers to be sure your roof support the sedum weight.
Despite the fact that a rooftop garden is costly to maintain due to repairs and damages that might be caused by other ecosystem habitats e.g. rodents, small reptiles, insects and bugs, it is a lovely solace place when the above guidelines are considered and proper advice from specialist embraced to the latter.
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