Green Roof Vs Traditional Roof

Green roofs are covered with plants and vegetation bringing a number of excellent benefits to every building.

Green roof vs traditional roof.

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. Cool roofs are even cheaper than green roofs only costing 0 75 to 1 50 per square foot and a single ply cool roof membrane usually ranges from 1 50 to 3 per square foot according to. We chose a value of 05 for existing dark roof solar reflectance because a typical roof is covered in black tar which has a solar reflectance value less. Looking great energy efficient and environmentally friendly too green roofs better utilise an often neglected area.

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. 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. As with anything though there are a few negatives and this post will aim to highlight both the advantages and drawbacks of implementing a green roof the benefits of. 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.