Ground Snow Load To Roof Load

These figures are established by the local jurisdiction in my case the state of massachusetts which lists ground snow loads for each town in the state.

Ground snow load to roof load.

60 ground snow psf below line 50 psf 50 ground snow psf. If your roof is 1 000 square feet the total snow load is 15 000 pounds of snow. When discussing snow load with anyone it is crucial to have a clear understanding as to if the load is a ground or flat roof snow load. Other considerations for sloped roofs can be found throughout chapter 7 of asce 7 10.

Please review our state snow loads page to investigate state specific snow load requirements. To calculate roof snow load per residential building code. A predictable load situation that is derived from snowfall records over the years in a particular region photo 2. If the ground snow load isn t specified then a ground snow load needs to be assumed and the truss designer and the building designer may not be on the same page as it relates to this design assumption.

0 7 x pg ground snow load pf roof snow load roof snow load examples. Roof snow load and the applicable snow. 0 7 x 60 psf 42 psf below line. Ground snow load refers to the weight of water per square foot that is exerted on the ground by the snow pack.

This statistic is not often directly relevant although heavy snow can damage some landscaping features. Use our roof snow load calculator to determine your design roof snow loads. The purpose of this web site is to provide ground snow load analysis information and data gathered from all 50 states. Each state has a listing of building code and applicable guidelines for snow loads as well as details about where the snow load information may be found or purchased.

In our case let s assume that our structure has a flat roof roof slope 5. The flat roof snow load is calculated using formula 7 3 1. Asce 7 drift height calculation. Psf pounds per square foot above line 60 psf.

The ground snow load is pretty much what it sounds like. To figure out the load on your roof take the depth of snow in feet and multiply it by the weight of a cubic foot of snow. 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. If you need to gather ground snow load data programmatically please consider our api service.

Purpose of this web site. The snow load that is applied to our structure is not the ground snow load but in most cases the flat roof snow load. 0 7 x 50 psf 35 psf. Pf is flat roof snow load if as a consumer your concern is snowfall and you want to upgrade the ability of your building to carry it this is the value to increase.

For additional questions or concerns about specific ground snow loads please call us at 1 425 741 5555.