A green roofA green roof is a roof or deck onto which vegetation is intentionally grown or habitats for wildlife are established. An extensive green roof is a roof with shallow substrate depths with limited vegetation, formed typically of grasses. An intensive green roof has a substantial substrate depth, allowing for a greater variety of and intensity of vegetation to be planted More is a roof or deck onto which vegetation is intentionally grown or habitats for wildlife are established. An extensive green roofA green roof is a roof or deck onto which vegetation is intentionally grown or habitats for wildlife are established. An extensive green roof is a roof with shallow substrate depths with limited vegetation, formed typically of grasses. An intensive green roof has a substantial substrate depth, allowing for a greater variety of and intensity of vegetation to be planted More is a roof with shallow substrate depths with limited vegetation, formed typically of grasses. An intensive green roofA green roof is a roof or deck onto which vegetation is intentionally grown or habitats for wildlife are established. An extensive green roof is a roof with shallow substrate depths with limited vegetation, formed typically of grasses. An intensive green roof has a substantial substrate depth, allowing for a greater variety of and intensity of vegetation to be planted More has a substantial substrate depth, allowing for a greater variety of and intensity of vegetation to be planted