Roof Live Load Vs Live Load

Arch 331 note set 13 1 s2014abn 2.

Roof live load vs live load.

Also measured in psf these loads include the anticipated weight of people furniture appliances automobiles moveable equipment and the like. Roof loads are a downward vertical force on the home. Minimum design live load can be found in asce 7 table 4 1 or ibc table 1607 1. They represent the transient forces that can be moved through the building or act on any particular structural element.

Live loads are temporary loads. 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. They are applied to the structure on and off over the life of the structure.

The live load on a roof is the weight of any temporary objects on the roof. The north zone design live load equates to 40 pounds per square foot. However a south roof load zone home cannot be installed in either a middle or north roof load zone. 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.

2attic loads may be included in the floor live load but a 10 psf attic load is typically used only to size ceiling joists adequately for access purposes. But when we discuss roofs these days live loads are generally associated with the weight that the roof structure might be asked to endure while the roof is under construction or renovation reroofing. Live loads refer to the dynamic forces from occupancy and intended use. However if the attic is intended for storage the attic live load or some portion should also be considered for the design of.

This downward imposed load on the home is also known as the snow load. D dead load l live load l r 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.