Michigan Roof Snow Load Map

The north zone design live load equates to 40 pounds per square foot the middle zone equates to 30 pounds per square foot and the south zone equates to 20 pounds per square foot.

Michigan roof snow load map. The minimum design roof snow load. Snow exposure factor c e. 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. Michigan the state has amended the snow load requirements of the 2009 ibc figure 1608 2 and the 2009 irc figure r301 2 5 table r301 2 1 and table r301 2 5 with the 2009 michigan building code which replaces the national snow load map with a state specific zone map and tabulated values by jurisdiction.

Schilke civil agricultural engineering montana state university august 1989. Together owners steven letherer and bernie letherer have over half a century of experience in the truss industry. Flat roof snow load p f. This is a beta release of the new atc hazards by location website.

Figure 1608 2 for any location in the state of michigan. The state has amended the snow load requirements of the 2009 ibc figure 1608 2 and the 2009 irc figure r301 2 5 table r301 2 1 and table. 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. Snow load importance.

Please contact us with feedback. In areas where the ground snow load p g exceeds 10 pounds per square foot psf 0 479 kn m 2 the following additional information shall also be provided regardless of whether snow loads govern the design of the roof. Use our michigan ground snow loads map to easily determine the ground snow load 2009 michigan building code. In areas of the state outside of certified local government jurisdictions the design snow load shall be based on the ground snow loads developed in snow loads for structural design in montana authored by f f.

The ground snow load p g shall be indicated. Established in 1989 our company is family owned and operated. The north zone middle zone and the south zone are identified on the roof load zone map above.