Green roofs equal energy savings
Green roofs are exactly what they sound like, plants on your roof. There are two basic types, Extensive and intensive, the definition is dictated by soil depth. Below four inches is Extensive and above four inches is intensive.
Vegetated roofs also lengthen the life span of a roof two to three times, an obvious cost savings. Let alone that’s less petroleum products used to make rubber roofs saving even more energy and resources. By being covered the roof no longer contributes to heat island affect.
Heat Island is where higher temperatures are recorded in urban areas as a result of darkly covered heat soaked roofs pouring heat off them all day and even into the night. The many roofs of this nature in a concentrated area actually increases air temperatures adding insult to injury during hot summer months and increasing utility costs as people combat the excessive heat. Let alone during dangerous heat emergencies when temperatures have been noted to exceed 100 degrees many elderly and young are at greater risk from heat stroke and other conditions that needlessly take lives every year. If more green spaces were added, on the ground as well as on the roof tops, the temperatures over all again could be reduced.
Storm water mitigation
Green roofs mitigate storm water; studies have shown a four depth green roof can hold back up to 60 to 70 percent of a one inch rain which can lower your storm and sewer bills. This in turns means thousands of gallons not entering storm sewers.
Co2 / Global Warming / Habitats
Now whether you believe in Global Warming or not, it is not a debate we have time to have today. Let alone its causes, human, planetary cycle and so on. The many merits already explained should be sufficient to understand the benefits of a green roof. If you’re riding the fence on Global warming or need a trusted source let me share with you what National Geographic states.
Industrialization, deforestation, and pollution have greatly increased atmospheric concentrations of water vapor, carbon dioxide, methane, and nitrous oxide, all greenhouse gases that help trap heat near Earth’s surface. Humans are pouring carbon dioxide into the atmosphere much faster than plants, forest, and the ocean can absorb.
It’s the base symbiotic relationship we have with our plants and forest, we provide CO2 by our very breath, in turn they provide oxygen. By providing more plants, you inherently reduce CO2. The more plants, the better reductions of CO2 waste.
Also there are federal guidelines about quantities of CO2 corporations via factories and manufacturing are allowed to emit, it is a reasonable assumption that potential credits to use or sell are not too far off in the future. All of these reasons are worthy enough taken individually but combined it becomes apparent that the merit and impact are there in positive waves.
Green Roofs are also natural habitats for indigenous species. One of the largest Green Roofs in North America is at an auto plant in Michigan. Still growing strong years after its initial planting one of the fun aspects for staff is watching each spring for new hatchlings from the many birds’ nests that have been built upon space that once was a barren black top roof. LEED Points are also available for habitat creation.