Sedum Roof Insulation

The deeper the growing medium on your green roof the better it will insulate.

Sedum roof insulation.

Sound waves are absorbed and reflected. The substrate blocks the lower frequencies while the plants absorb the higher frequencies. In addition to thermal insulation a green roof also has a sound insulating effect. Deep layers of substrate growing medium are extremely heavy.

However there s a compromise here. During the winter months it is possible to gain up to an extra 25 insulation in dry conditions by installing a green roof. Our mineral wool green roof growing mediums help to produce innovative extensive green roofs which support sedum moss herbs grasses and other vegetation where low or no maintenance is required. A sedum green roof is not quite as good an insulator as a wildflower green roof.

Sedum plants come in many colours and varieties so it is possible to design s edum mats blankets sedum walls or modules such as the s pod some times called the sedum tray green roof tray or modular system the s pod tailored to your needs or that of the environment. To create a sedum roof contractors start by installing traditional roof framing and sheathing. These materials are covered by a waterproofing membrane which prevents moisture from entering the structure. It can also raise the outside temperature of the roof on average by 4 5 c when the weather is cold.

Sedum has very shallow roots a key requirement for an extensive green roof considering the modest depth of the substrate layer. The combination of substrate plants and the embedded air in the green roof system provide good sound insulation. Sedum can withstand drought for example in very hot summers. Key considerations when designing green roofs include overall weight of the system to ensure it can be supported by the roof structure in addition.