Snow will slide off at just about any pitch.
Best roof pitch for snow load.
Discount that actual snow loads may exceed them only that the risk of snow load induced failure is reduced to an acceptably low level.
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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.
It is determined based.
Roof snow load is defined as the weight of snow on the roof surface used in design of the building structure ibc 2012.
Even in these arid regions so called flat roofs are still installed with a slight pitch to keep water from pooling on top of the structure.
Your best bet is to hold the snow load and let it melt slowly.
On multiple factors including.
This will extend the life of your roof.
If you are building a new roof however consider the climate to determine the correct pitch and proper materials.
If you put extra spikes or hangers in the gutters and a gutter cover that will help allow the snow to slide off.
Ground snow load value.