Roof Snow Load Is Dead Load
The unit weight of commonly used building materials are given in the code is 875 part i 1987.
Roof snow load is dead load. Other considerations for sloped roofs can be found throughout chapter 7 of asce 7 10. It is important to list live load dead load and total load separately because live load is used to compute stiffness and total load is used to calculate strength. Dead loads are the permanent loads which are always present. Flat roof snow loads p f the snow load that is applied to our structure is not the ground snow load but in most cases the flat roof snow load.
Dead loads depends upon the unit weight of the material. And also the permanent fixtures present in the structure. 65 or 46 of the total load snow dead is dead load. 910 pounds per lineal foot.
In our case let s assume that our structure has a flat roof roof slope 5. Dead is snow load and 30. If we compare total load live dead and total load snow dead the total load snow dead is 30 higher than total load. 15 psf x 14ft 210 pounds per lineal foot.
If you live in the us our snow load calculator compares the total weight on your roof with the permissible load calculated according to the standards issued by the american society of civil engineers regarding the minimum design loads for buildings and other structures asce7 16.