Green Roof And Greenhouse Differences
The second and even newer concept to take hold in the urban agricultural movement is what has come to be known as vertical farming.
Green roof and greenhouse differences. The plants in a green roof absorb water through their roots and then use surrounding heat from the air to evaporate the water while some roofs can reach temperatures of up to 90 f in the summertime these two features can allow. Green roofs reduce the temperature of the building and the surrounding air in multiple ways. 1 2 in addition green roofs can reduce building energy use by 0 7 compared to conventional roofs reducing peak electricity demand and leading to an annual savings of 0 23 per square foot of the roof. Available in clear frosted or green fiberglass panels run about 1 to 2 per square foot.
The whole green revolution shifted by the modern rooftop greenhouse results in endless benefits. For a conventional roof. Green roof temperatures can be 30 40 f lower than those of conventional roofs and can reduce city wide ambient temperatures by up to 5 f. 8 to 20 per square foot.
They provide shade to the top of a building evapotranspiration. Fiberglass panels are commonly used to cover greenhouses as they are durable lasting for up to 20 years. A 2006 study by the university of michigan comparing costs of conventional and green roofs showed that on average installing a green roof costs about 22 00 sq. A retractable greenhouse rooftop system is probably the best option to consider since it is flexible and protects against cold climates with heavy snow loads.
15 to 50 per square foot.