A partial floor plan for a three$-$story reinforced concrete office building with $10$ ft floor$-$to$-$

floor heights is shown in the next slide.

Assume the following:

$7"$ thick slab on the roof and floors

$5-$ply roofing plus gravel on the roof slab plus $3\mathrm{.}5$ psf for insulation

$\frac{1}{2^{\text{'}\text{'}}}$ lightweight finish on the floor slabs

$20$ psf for the partitions

$10$ psf for mechanical and electrical equipment

$2$ psf for the suspended ceiling

Roof live load $($snow$)S=35$ psf

Floor live load $($office$)L=50$ psf

A$.$ Determine the following:

The factored total uniform load in psf on the roof

The factored total uniform load in psf on the floor slabs