Sloped Roof Roof Snow Load Map

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.

Sloped roof roof snow load map.

Check for ice dams and icicle loads. Snow loads for structural design in montana revised 2004 gregory p. 0 7 x 50 psf 35 psf. B sloped roof snow loads ps.

0 7 x pg ground snow load pf roof snow load roof snow load examples. P s cspf equation 68 5 3. Account shall be taken of the load effects of potentially excessive snow accumulation in pockets or wells of roofs or decks. Psf pounds per square foot above line 60 psf.

See section 7 4 5 asce 7. 1610 8 snow pockets or wells. Check for loads due to snow sliding from an upper roof. Done calculate drift surcharge load.

7 2b with a c s 1 0 p f flat roof snow load in psf. In this case the sloping roof with snow guards shall be designed for the unit snow loads required for a flat roof. 7 4 1 7 4 4 and asce figure 7 2 below. To calculate roof snow load per residential building code.

The snow load that is applied to our structure is not the ground snow load but in most cases the flat roof snow load. Values of c s for warm roofs and cold roofs are as. The sloped roof snow load p s shall be obtained by multiplying the flat roof snow load p f by the roof slope factor c s. The slope roof snow load p s shall be obtained by multiplying the flat roof snow load pf by the roof slope factor cs.

On the low roof if proper snow guards are provided on the high roof. Superpose the drift load on the base snow load. The flat roof snow load is calculated using formula 7 3 1. All snow loads acting on a sloping surface shall be considered to act on the horizontal projection of that surface.

0 7 x 60 psf 42 psf below line. P s c s p f the thermal factor c t from table e 3 determines if a roof is cold or warm slippery surface values shall be used only where the roof s surface is unobstructed and sufficient space is. P s c s p f where. 20 s 20 where s is the spacing in feet.

See section 7 9 asce 7. 60 ground snow psf below line 50 psf 50 ground snow psf. 20 ft of the roof multiply the drift load by the factor. P s sloped roof snow load in psf c s roof slope factor as determined by asce sec.

In our case let s assume that our structure has a flat roof roof slope 5.