Are Live Roofs Cost-Competitive to Traditional Roofing Options?
The initial investment cost of an extensive green roof starts at $8 per square foot, which includes materials, preparation work and installation. In comparison, the cost of a traditional built-up roof starts at about $3 while cool roof membranes start at approximately $3 per square foot. However, with energy efficiencies, return on investment on a green roof is tantamount with that of a traditional roof.