Roof Live Load Meaning

Minimum design live load can be found in asce 7 table 4 1 or ibc table 1607 1.

Roof live load meaning.

Using the term live loads when referring to roofs might make you scratch your head initially because roofs unlike floors aren t asked to bear the weight of things such as furniture and occupants of a home what you would normally think of as a live load. Also measured in psf these loads include the anticipated weight of people furniture appliances automobiles moveable equipment and the like. Live loads include any temporary or transient forces that act on a building or structural element. This downward imposed load on the home is also known as the snow load.

Typically they include people furniture vehicles and almost everything else that can be moved throughout a building. The north zone middle zone and the south zone are identified on the roof load zone map above. Roof load live load design is affected by the shape of the roof whether it is flat curved or pitched. Roof and floor live loads are produced during maintenance by workers equipment and materials and during the life of the structure by movable objects such as planters and people.

Live loads keep on changing from time to time. Where snow isn t a problem the live load can come from people working on the roof and any equipment they take on to the. Loads used in design load equations are given letters by type. Live loads are also called as imposed loads.

Live loads refer to the dynamic forces from occupancy and intended use. D dead load l live load l. Live loads on floors and roofs consists of all the loads which are temporarily placed on the structure for example loads of people furniture machines etc. Various types of imposed loads coming on the structure are given in is 875 part 2.

Roof loads are a downward vertical force on the home.