Green Roof Structure Thickness

With green roofing one can observe a great improvement in health and well being.

Green roof structure thickness. One important item to design for is an increased structural load. A green roof with a lightweight solution of 30 kg m2 is only possible with sedum vegetation and a green roof with a weight of 220 kg m2 is composed of a combination of sedum grasses herbs or host plants. You can compare an intensive roof to a normal garden and this is why an intensive green roof is also known as a roof garden or garden roof. Beam design procedure 1.

The green roof drainage layer thickness makes sure that nothing can go wrong below offering a solid and effective guard. Calculate live and dead loads being induced on the slab. It is common practice to use the term extensive to describe green roofs that are very thin and will only support hardy drought resistant vegetation such as sedums herbs and perennials. Green roof structural design description to accommodate the increased load on the roof structure the existing structural system.

A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane it may also include additional layers such as a root barrier and drainage and irrigation systems. The nominal thickness of a green roof is the approximate total height of the soil and drainage components that constitute the green roof system excluding the roof structure insulation waterproofing and plants. Roughly speaking extensive green roofs have a thickness of between 4 and 15 cm and a weight of between 30 and 220 kg m2. This is especially true of intensive green roofs which can have soil that is two feet deep or more.

Container gardens on roofs where plants are maintained in pots are not generally considered to be true green roofs although. The substrate gives the right amount of nutrients to the plants so your green roof stays nice and green. The slab thickness for a typical bay was calculated to be 6 5. Intensive to describe green roofs that are thick enough.

Because water runs off the roof more quickly a thicker substrate layer is needed. There are a number of things to consider when designing for a green roof. These materials will determine the efficiency of the roof and keep your house free from trouble. To achieve healthy construction designs it is important to make a proper selection of green roof construction materials.