Green Roof Vs Traditional Roof

To further illustrate the environmental protection agency has made an estimation for the costs of green roofs.

Green roof vs traditional roof. A green roof is the practice of growing vegetation directly on a roof over a waterproof membrane. A roof garden is a similar technique that places container gardens on a roof. In the first one the building as it is with a conventional covering while in the second one the roof was equipped with a green roof. An ordinary tar roof requires roofing replacement after a certain amount of years while green roof do not require roofing replacement because the vegetation protects the roof from the environmental elements.

However those researchers did determine that the green roof would save an additional 200 000 over its lifetime. 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. Both techniques may partially or completely cover a roof. From that study they concluded that the green roof would cost 464 000 whereas a conventional roof would only cost 335 000.

The results of the two simulations have been compared suggesting that such building component could contribute to the energy savings of the building. After selecting to use a green roof or cool roof the roofing contractor must look at the pros and cons of each in order to decide which would be best for the property. One of the significant reasons for this being the extra support required to handle the increased load. We considered two different scenarios.

While each of these possesses its own advantages and disadvantages cool roofs and green roofs present facility owners with great options. A greater expense than traditional roofs. Cool roofs reflect sunlight and heat back into the atmosphere while green roofs help absorb the sunlight and heat before it can enter the building. Both may feature recreational facilities or commercial facilities such as a rooftop cafe.

Although installation of a green roof usually involves higher upfront costs than a traditional roof there are many economic benefits that can make up for this. Unfortunately for green roofs they do tend to be slightly more expensive than the traditional option. Increased r value a measure of the resistance of a material to heat flow of the roofing system along with reduced temperatures on the roof lessen hvac loads resulting in energy cost savings. Studies have shown that a green roof can reduce your cooling costs by 50 and more during the summer months and in the winter your home will retain 15 30 more heat than if you had a conventional roof.

1 3 these temperature reduction and energy efficiency benefits are a key contributor to the growing popularity of green roofs in the.