R Value Of Intensive Green Roof

In other words go above r 20 and make green roof decisions for other reasons than energy.

R value of intensive green roof.

The soil mixture is at least 8 inches deep and can be as deep as 15 feet depending on the architectural and plant features the homeowner wants. Green roofs save energy compared to uninsulated roofs or poorly insulated roofs or even better black poorly insulated roofs. For a conventional roof. By allowing the designer to create a setting of an urban park on a building s roof an intensive green roof design comes with a unique value proposition.

Perhaps the most important benefit of green roofs is that they can reduce the amount of and improve the quality of stormwater runoff from a building site. 8 to 20 per square foot. Once you have more than r 20 in a roof assembly that is you meet the code things pretty much don t matter. All vegetation is planted directly into the soil mixture that makes up the rooftop.

An intensive green roof is more high profile and resembles a roof garden because it has a much wider variety of plants. 15 to 50 per square foot. The soils of a green roof will capture a significant amount of stormwater which is absorbed and used by the planted material. An intensive green roof weight varies from 35 to beyond 100 pounds per square foot when dry.

The economic benefits of any individual green roof will however depend on its design geographic location surroundings and the building itself.