Sedum Roof Self Weight

An extensive green roof or sedum roof is a roof with vegetation that is more or less self perpetuating and that can further develop and maintain itself.

Sedum roof self weight.

It comprises mature sedum on 20mm of extensive substrate and incorporating a multifunctional water retention and filter layer. Sedum roofs with a natural drainage layer are designed to maximize water retention while sedum roofs with a synthetic drainage layer may focus more on minimizing weight. Individual complete modules are installed quickly and have a 90 fully grown sedum layer for instant greening. Marketed as a green roof in a box urbanmat is a 12m length of sedum planted matting that includes drainage and waterproof backing and that costs 590 from urban roof gardens.

A standard sedum roof has a saturated weight of about 80 kg m. 7 media depth 22 29 lbs ft2 38 46 lbs ft2. Bear in mind that plant matting is very heavy and needs at least two people to handle the laying. A layer of material in which the sedum can grow above the roof s waterproof membrane and plant the sedum.

The following table provides typical weights dead load self weight for various roofing materials. Extensive built up. Roughly speaking extensive green roofs have a substrate thickness of between 4 and 15 cm and a weight of 30 to 220 kilo per m2. When sedum vegetation is applied to a green roof the weight is approximately 30 kg m2.

These provide aesthetic interest and diversity. Weight of roofing materials. You can grow sedum plants on any flat roof. Plugs or cuttings for plant material weight.

Sedum roofs are extensive green roofs that have a media depth of 3 8 inches. A variety of hardy sedums both native and non native. If necessary this weight can be reduced to approximately 40 kg m for roofs that can only bear a lightweight green roof system. A sedum roof covering is the lightest form of green living roof.

The system is suitable for both new build construction and retrofit refurbishment projects. 5 25 media depth 17 22 lbs ft2 29 34 lbs ft2. 6 media depth 19 25 lbs ft2 33 39 lbs ft2. You can watch a video about liveroof here.

Add 2 5 lbs ft2 for sedum mats and tiles. You simply add a substrate ie. Here s a guide comparing types. There are two variations for the system build up.

Last updated july 22 2020. System depth dry weight saturated weight. In addition the weight also depends on the water buffering capacity of the drainage layer. Planting and waterproofing typically the total depth of the green roof would be 85 100mm 12 20mm drainage layer 70mm of substrate and have a saturated weight of approx.

Xf301 sedum blanket extensive green roof system when to specify. Where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products. The weight of a green roof is one of a number of factors specifiers need to consider when deciding which roofing system to use.