Montana Roof Snow Loads

In areas of the state outside of certified city county and town jurisdictions the design snow load shall be based on the ground snow loads developed in snow loads for structural design in montana civil engineering department montana state university 2004 revised edition.

Montana roof snow loads.

Note that the state of montana requires a minimum roof snow load of 30 psf to be used for design regardless of ground snow load. 40 psf roof design. Pursuant to montana law the minimum design roof snow load after allowed reductions shall be 30 psf. The state of montana requires a minimum roof snow load of 30 psf be used for design 2 this minimum value applies to the final roof snow load that is calculated after all coefficients have been applied and it may be revised when justified by a design professional to the satisfaction of the building official.

You can click on the map below to find the design ground snow load for that location. Of course not every point in the state of. Local and or state requirements on the ground snow loads or roof loads supercede the values provided by this tool. 46 psf per snow loads for design in montana f f.

Montana ground snow load finder. Why snow load information. It is right on up there with a balcony at 55 to 60 psf. It is advisable to use manufactured roof trusses where possible r802.

In most cases hurricane clips attaching each roof truss to the top plate will be required consult roof truss design drawings for connection requirements. Based on 100 year 1 hour rainfall of 1 22 inches frost depth 3 ft 1 story building 4 ft 2 story building. Right off the top count on a minimum of 30 psf that is state code. Submit a roof framing plan or submit roof truss engineering designed for belgrade s 37 psf snow load.

Snow loads shall be determined by the building official. Basic ground snow load. Local and or state requirements on the ground snow loads or the roof loads subsequently calculated from these values supercede the values provided by this snow load finder tool. Note that the state of montana requires a minimum roof snow load of 30 psf be used for design.

To find your precise required snow load you enter any geographical latitude and longitude stated in decimal form and it returns a snow load value. A great deal of confusion currently exists among engineers architects recreation specialists and maintenance personnel concerning the proper snow loading to use for the design and maintenance of trail bridges building roofs and other structures in mountainous high snow load areas. We have a high snow load. Montana ground snow load finder.