Green Roof Insulation Layer

Advice should be sought from a building energy consultant to establish the value of additional insulation considering the insulating properties of the green roof assembly substrate.

Green roof insulation layer. These products work in conjunction with the primary drainage component within the green roof system. Their main function is to incorporate a thin layer of air within the profile of a green roof system while also providing lateral water movement. Penefol 800 1 5 is a conditionally usable membrane for small structures. Fatrafol 808 2 3 or fatrafol 810 1 5 is the most suitable waterproof insulation for green roofs.

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. If insulation is not included an aeration layer is not needed. One that we recommend considering is the green roof insulation layer. The most common root barriers used are thin polyethylene sheets laid over the waterproofing membrane.

The green roof solutions air layers serve multiple purposes. Common uses of the grs air layers are. The purpose of this layer is to control the flow of vapour passing through the structure from the inside of the building to the outside in order to avoid the issue of condensation forming inside the roof assembly. Starting from the existing roof deck and moving up the typical layers of a green roof system are.

When an insulation layer is included locate it above the waterproofing membrane. This membrane must be integrated and concealed in the structure. In addition to thermal insulation a green roof also has a sound insulating effect. Quieter environment indoors and outdoors.

Root barriers are often used in green roofs to provide some protection to the waterproofing from invasive stolons rhizomes and from woody roots from trees and shrubs. In some cases a green roof may include thermal insulation typically a layer of extruded polystyrene. Flat stock or tapered insulation should be installed under the membrane to provide thermal resistance or positive drainage for green roof assemblies. This can add an extra level of comfort and make your property in general feel a lot better to be in.

Waterproof membrane in many retrofit cases this layer already exists and depending on it s condition water tightness it may or may not need replacing. Sound waves are absorbed and reflected. The combination of substrate plants and the embedded air in the green roof system provide good sound insulation. The whole thing though is more or less fine as long as you have the five mandatory selections.

However a green roof with grasses or herbs contributes more to heat regulation because the substrate layer is thicker than for a sedum roof. So you can also save on your heating bills in the winter. Waterproofing is the third layer whose details must be flawlessly made.