Green Roof Insulation Types

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

Green roof insulation types.

Build it green. Sheep s wool is often considered one of the best insulation types available but it is also one of the most expensive. There are three basic types of green roof. Sound waves are absorbed and reflected.

Consists of a thick layer of soil 50 200mm in which a variety of grasses herbs flowers and shrubs can grow. For one thing it can be rolled into batts. Other insulation materials include foam wool and even insulated glass for windows. They fall into three main categories extensive intensive and semi intensive.

Denim and cotton waste is treated with a fire retardant chemical. However a green roof with grasses or herbs contributes more to heat regulation because the substrate layer is thicker than for a sedum roof. Polyfoam roofboard extra offers a declared compressive strength of 300 kpa. A compressive strength of 300 kpa declared in accordance with en 13164 is suitable for both green roofs and roof gardens.

Of course there is some cross over between the categories. It is sold in rolls making it easy to install and it won t irritate the skin. 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.

Quieter environment indoors and outdoors. Intensive parks and gardens including urban agriculture semi intensive garden green roofs extensive natural low maintenance green roofs. Intensive thick extensive thin and semi extensive somewhere in between. 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.

So you can also save on your heating bills in the winter. Other earth friendly roof insulation options include soy fibers and sheep s wool. The combination of substrate plants and the embedded air in the green roof system provide good sound insulation. According to etag 031 xps insulation with a cs 10 y 300 designation i e.

Thermal insulation in some cases a green roof may include thermal insulation typically a layer of extruded polystyrene. 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. Most homes are filled with traditional fiberglass material with newer ones adopting recycled cellulose material for more environmentally friendly alternatives.