When used for storage only dead load of attic floor not floored 10 lbs.
Loads for attic.
A room used solely for sleeping might need to carry only 30 psf whereas a garage floor over a basement would need 50 psf or higher.
Virtually any attic floor can be brought up to code it s just a matter of how much.
Ft dead load of roof of wood shingle construction 10 lbs.
An inaccessible attic space on the other hand might have a live load of only 20 psf.
Live load on attic floor local requirements.
Sistering is the process of adding a new joist next to each existing joist.
If the attic joists are not adequate one way to strengthen the floor for live loads is to sister the old joists.
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.
If your existing attic flooring isn t adequate for conversion to a living space all is not lost.
In the case of 2x6 joists you can pair them up with additional 2x6 joists by nailing them together.
Loads should be determined in accordance with this chapter.
Girder load width half joist span live load on roof local requirements for wind and snow.