![]() ![]() You can walk on a green roof or a roof garden as long as you don’t step on the plants, or the plants can tolerate being stepped on. Green roofs are walkable, unlike other roof systems that are fragile and can break if walked on. ![]() But what’s great about roof gardens is that it is completely customizable to whatever you want so you can fit any style. Roof gardens can look good and they can also look bad. ![]() If you are like me and love the sounds of birds chirping in the morning then a green roof is a good option. Roof gardens make great environments that help support habitats for birds and other animals. The 7 layers work together to reduce outside noise making a roof garden quieter than most other roof systems. Roof gardens not only absorb impacts but also help to absorb noise. But if you enjoy gardening then why not have another garden on your roof? 13.Sound: These types of plants will require just as much maintenance as any other garden. Roof Gardens can be used to grow edible plants like herbs and vegetables. It is also better to have plants that retain and hold a lot of water like the succulent plants. To increase the resistance to fire, it is recommended that the growing media be at least 30 mm deep ( Fire Performance Green Roof). The growing media is fire resistance but the plants are organic can be easily combustible if they dry out. But generally, they are considered a Class A. Roof gardens vary on their level of fire resistance. If you don’t know the slope of your roof, you can click here to learn how to find that out. Anything over 5:12 pitch is too steep for a roof garden. After a 3:12 grade, you must have anti-shear stability layers to prevent erosion. The minimum slope for a roof garden is 2% or a near completely flat roof. Roof gardens can be installed on most roof slopes. None of the critical areas like the lower layers would get damaged because the shock from the impact gets absorbed throughout the growing media. If any damages do occur it will likely be the plants, which can easily be replaced. Roof gardens will hold up well against fallen branches or hail storms. Roof gardens are expected to last anywhere from 30 years to 50+ years depending on how well it is maintained and what type of garden it is (intensive or extensive). To see how roof gardens compare to the cost of other roofing materials like shingles or slate you can click here to check out comparison tables and graphs for 17 different types of roofing materials. The price will be more expensive for intensive roofs or more specialized gardens. But a rough estimate would be about $100 to $400+ a square (100 square feet = 1 square). The price for a roof garden varies drastically because there are so many variables that play a role in the overall cost. This improves the lifespan of the roof garden. This advantage may be obvious, but the top upper layers of the roof garden protect the more vulnerable bottom waterproof layer from the damaging UV radiation. Most roof gardens use a drainage system which helps to prevent any soil or another media from leaving. The type of plants used and the climate will play a vital role in this. Self-Sustaining:ĭepending on how your roof garden is installed it can be self-sustaining meaning you will not ever need to water it. See disadvantage #4 for why it’s important to install the waterproofing layer properly. One of these parts could be the waterproof layer (More detail about that in the previous article I already linked to). However, there are some parts that may be a little more technical and require someone who is experienced with roof gardens to install. Roof gardens are generally easy to install and you could probably do it yourself if you are on a flat roof and have a basic understanding of gardening. This helps you to save energy costs and keep your home cool in the summer and warm in the winter. The many layers used to make a Roof garden work together to provide great insulation to your home or building. It is good for the environment because it adds more plants into our world which helps give us more oxygen. This is probably the most obvious benefit and the main reason why many choose to make a roof garden. ![]()
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