Snow Load Gable Roof Equation

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.

Snow load gable roof equation.

This includes overhangs and multiple roof levels. Snow load thickness density. Sliding load on adjacent roof ponding faq s 3 minimum roof snow load clarification scenario roof load right after heavy snow w o wind no time for thermal no wind roof load p r p g 4 minimum roof snow load p m i s p g p g 20 psf p m 20 i s p g 20 psf the 20 psf value is our estimate of the maximum size of a single heavy snow storm 5 minimum roof snow load. The result snow load or the pressure exerted by the snow has the units of kn m or lbs ft.

The snow load p f on a roof with a slope equal to or less than 5 degrees 1 in ft 4 76 deg shall be calculated in lb ft 2 kn m 2 using the following formula. P f flat roof snow load in psf c e exposure factor as determined by asce table 7 2 below. Number of footings 16 footings piers therefore provide 8 piers per side of the manufactured home pier spacing 8 6 ft the maximum spacing of the piers is set to 8 feet to provide effective floodborne debris protec tion. P f 0 7c e c t i s p g where.

All loads are listed as pounds per square foot of. Minimum values of pf shall apply to monoslope roofs with slopes 15 degrees and gable and hip roofs with slopes less than the larger of 2 38o and 70 w 0 5 where w horizontal distance from eave to ridge in feet. Snow load calculations for most residential structures are usually performed using the following method. Flat roof snow load are determined by the following method.

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 available below the eaves to accept all the sliding snow. Snow weight length width cos pitch snow load. Determine ground snow load based on location and elevation calculate flat roof snow load p f using the following equation. The balanced snow load is applied everywhere where the roof structure is located.

The weight of snowis measured in kgor lbs. Our sample homes are in an area where the snow load is 50 pounds per square foot of roof area treat snow as live load. Partial unbalanced and drift loading. After you obtain the roof slope factor from those sections in asce 7 10 the balanced design snow load for the sloped roof can easily be calculated using equation 7 4 1.

It goes without saying that in a warmer climate the snow load probably would be less so you need to check your code book for live loads and dead loads in your region. Individual footing area 24 in x 24 in 4 ft2. P f 0 7c e c t i p g.