Roof Live Load Porch Roof

Further in most areas of the united states design winds are produced by either hurricanes or thunderstorms.

Roof live load porch roof. The dead load is constant and is estimated as 10 pounds per square foot for wood framed construction. Axial forces from snow loads and roof live loads should usually not be considered simultaneously with an extreme wind load because they are mutually exclusive on residential sloped roofs. State board of building regulations and standards. The roof load is composed of a dead load and a live load.

Those loads act on the deck differently and more substantially than live loads. The live load on a roof is the weight of any temporary objects on the roof. 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. Some conditions may require additional design consideration such as areas subject to drifting snow or sliding snow from roofs above.

For example a span table for 60 psf live load could be used for a region with a 60 psf snow load. The ground snow load p gf and the flat roof snow load p and if applicable the sloped roof snow load p s shall be indicated. 1603 1 3 roof snow load. The roof live load used in the design shall be indicated 780 cmr 1607 11.