However if the attic is intended for storage the attic live load or some portion should also be considered for the design of.
Roof live load tables.
Where snow isn t a problem the live load can come from people working on the roof and any equipment they.
Loads should be determined in accordance with this chapter.
If your code book says your snow load is 40 psf then you use the 40 psf live load rafter table.
And each case shall be treated on its own merits.
The snow load is treated as a live load when you use af pa s tables.
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.
For roof live loads of 12 psf or 16 psf.
It the roof is subjected to snow load it should be designed for the actual load due to snow or lot the live loads specified in table 1 3 whichever is more severe.
The snow load is treated as a live load when you use awc s tables.
The loads are based on adjusted roof snow loads from the governing building code.
The live load on a roof is the weight of any temporary objects on the roof.
For roof live loads less than 20 pounds per square foot psf rafter spans and required e values tabulated for 20 psf shall be permitted to be adjusted in accordance with the fol lowing table.
The fact that snow loads only act part of the year has been used to create the rafter tables.