Minnesota Roof Snow Load

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.

Minnesota roof snow load.

Psf pounds per square foot above line 60 psf. 0 7 x 60 psf 42 psf below line. G see minnesota rules chapter 1335 flood proofing regulations. 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.

0 7 x 50 psf 35 psf. You can click on the map below to find the design ground snow load for that location. Roof loads are a downward vertical force on the home. To calculate roof snow load per residential building code.

Soil classification and bearing table. Use our minnesota ground snow loads map to easily determine the ground snow load 2007 minnesota state building code. Egress windows for manufactured homes jan. The roof snow load is a uniform load on the horizontal projection of the roof.

Why snow load information. This table says that roof snow loads equal 7 times the ground snow load. F the ground snow loads to be used in determining the design snow loads for buildings and other structures are given in minnesota rules part 1303 1700 ground snow load to verify by county. 1303 1700 for any location in the state of minnesota.

60 ground snow psf below line 50 psf 50 ground snow psf. 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. 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. Snow load map ground load and roof load map per minnesota rules 1303 1700.

This table says that. Square footing sizing table. Frost depth map minnesota rules 1303 1600. The north zone middle zone and the south zone are identified on the roof load zone.

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. To find the ground snow load we use section 1303 1700 of the minnesota administrative rules. Roof load live load design is affected by the shape of the roof whether it is flat curved or pitched. 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.

0 7 x pg ground snow load pf roof snow load roof snow load examples.