Mn Roof Snow Load

Frost depth map minnesota rules 1303 1600.

Mn roof snow load.

0 7 x 50 psf 35 psf. The state has amended the snow load requirements of the 2006 ibc chapter 1608 2 and the 2006 irc figure r301 2 5 and table r301 2. H in accordance with sections r905 1 2 r905 2 7 r905 4 3 1 r905 5 3 1 r905 6 3 1 r905 7 3 1 and r905 8 3 1 where there has been a history of local damage from the effects of ice damming. 0 7 x 60 psf 42 psf below line.

You can click on the map below to find the design ground snow load for that location. This table says that roof snow loads equal 7 times the ground snow load. Round footing sizing table. Soil classification and bearing table.

60 ground snow psf below line 50 psf 50 ground snow psf. To find the ground snow load we use section 1303 1700 of the minnesota administrative rules. 05 minimum design loads for buildings and other structures the tables were developed for the two design snow loads in minnesota as well as including wind load exposure ratings b c and d since all three of these ratings can be applied statewide. The southern portion of minnesota which includes the twin cities metro area uses a ground snow load of 50 pounds per square foot.

Snow load map ground load and roof load map per minnesota rules 1303 1700. Use our minnesota ground snow loads map to easily determine the ground snow load 2007 minnesota state building code. The dead weight assumed for the analysis was developed based on the self weight of the. The roof snow load is a uniform load on the horizontal projection of the roof.

To calculate roof snow load per residential building code. G see minnesota rules chapter 1335 flood proofing regulations. Square footing sizing table. Why snow load information.

Psf pounds per square foot above line 60 psf. The design roof snow load for residential buildings in mn is set by state statutes and is 42 pounds per square foot psf in northern mn and 35 psf in southern mn. Egress windows for manufactured homes jan. To find the ground snow load we use section 1303 1700 of the minnesota administrative rules.

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. 1303 1700 for any location in the state of minnesota. The required roof snow loads for minnesota aren t clearly spelled out anywhere but the numbers can be found by using table r301 2 1 of the minnesota administrative rules. However many agricultural buildings are built using a 20 psf snow load which would be expected to handle six feet of dry fluffy snow or one foot of wet heavy snow.