However, there are three primary types of green roofs: extensive, intensive and semi-intensive. Extensive roofs are simple and lightweight. In general, extensive roofs have a thin soil layer and ...

The EPA estimates green roofs start at about $10 per square foot for simple projects, or up to $25 per square foot for more ambitious designs (although they can also save building occupants money ...

The concept is simple: "basically it's just vegetation on a roof," he said. There are two main types of green roofs -- intensive and extensive. Intensive roofs are mostly found on commercial ...

Green roofs turn an outdoor space into a sustainable environmental solution that’s practical and beautiful. Essentially, a ...

green roofs can provide even more habitat for certain species. ‘You can create a diversity of microhabitats, nesting places and foraging opportunities for invertebrates,’ she says. ‘With simple ...