Green Roof Insulation Types

In addition to thermal insulation a green roof also has a sound insulating effect.

Green roof insulation types.

Thermal insulation in some cases a green roof may include thermal insulation typically a layer of extruded polystyrene. Sheep s wool is often considered one of the best insulation types available but it is also one of the most expensive. While this can be positioned below the roof deck installation above the waterproofing known as an inverted green roof is preferred as it further protects the membrane from condensation and physical damage. The combination of substrate plants and the embedded air in the green roof system provide good sound insulation.

Intensive thick extensive thin and semi extensive somewhere in between. According to etag 031 xps insulation with a cs 10 y 300 designation i e. Other insulation materials include foam wool and even insulated glass for windows. It is sold in rolls making it easy to install and it won t irritate the skin.

For one thing it can be rolled into batts. Cotton insulation is similar to fiberglass insulation in several ways. Although there are no precise definitions of them an extensive green roof has a shallow growing medium usually less than six inches with a modest roof load limited plant diversity minimal watering requirements and is often not accessible. Green roofs are internationally placed in three different types.

Additionally the r value of cotton insulation and fiberglass is the same roughly r 3 2 to r 3 7 per inch of thickness source. However a green roof with grasses or herbs contributes more to heat regulation because the substrate layer is thicker than for a sedum roof. Most homes are filled with traditional fiberglass material with newer ones adopting recycled cellulose material for more environmentally friendly alternatives. Intensive parks and gardens including urban agriculture semi intensive garden green roofs extensive natural low maintenance green roofs.

Build it green. Quieter environment indoors and outdoors. Polyfoam roofboard extra offers a declared compressive strength of 300 kpa. Sound waves are absorbed and reflected.

Other earth friendly roof insulation options include soy fibers and sheep s wool. They fall into three main categories extensive intensive and semi intensive. Consists of a thick layer of soil 50 200mm in which a variety of grasses herbs flowers and shrubs can grow. So you can also save on your heating bills in the winter.

Denim and cotton waste is treated with a fire retardant chemical. Of course there is some cross over between the categories. There are three basic types of green roof.