Living Roof Loads

This downward imposed load on the home is also known as the snow load.

Living roof loads.

Live loads are produced by the use and occupancy of a building. The second trussed roof is designed for a dead load of 160kg m 2 and a live load of 40kg m 2. In other words on a steep roof less material would be stacked in a concentrated area at one time to avoid having it slide off. The venny green roof has shallow substrates on two types of roof the first roof is on shipping containers and is designed for a dead load of 250kg m 2 and live load of 100kg m 2.

Where snow isn t a problem the. Load limits on the roof of a building dead loads. This website based guide builds on the material and information in our original pdf the diy guide to green living roofs which we published in 2008. This online guide is designed to meet the needs of diy enthusiasts looking to put a green roof on a shed or outhouse builders and landscaper contractors who want to build green roofs.

We wanted somewhere for some wildlife to have bees etc 3. The north zone middle zone and the south zone are identified on the roof load zone map above. Loads include those from human occupants furnishings nonfixed equipment storage and construction and maintenance activities. The venny green roof melbourne.

Make a normal flat or sloped roof into a beautiful living garden. In my region on cape cod we have a ground snow load design of 25 psf which is a greater design load than the live load 12 psf to 20 psf over an entire roof system. D dead load l live load l. I liked the idea of having a bit more greenery in the property we live in central london 2.

This is highly regional as weights of snow for example range from 10 to 300 pounds per square foot based on moisture and volume of the snow. Loads used in design load equations are given letters by type. Live roof load w wind load s snow load e earthquake load r rainwater load or ice water load t effect of material temperature h hydraulic loads from soil f hydraulic loads from fluids. Table 3 4 provides recommended design live loads for residential buildings.

Roof load live load design is affected by the shape of the roof whether it is flat curved or pitched. This is all of the natural stresses imposed upon a roof such as snow loads rain loads and wind loads. Photo by andrew wutke. The dead load on a roof is the weight of the roof structure itself along with any permanently attached.

Determine the transient load of the roof.