Roof load live load design is affected by the shape of the roof whether it is flat curved or pitched.
Roof live load in minnesota.
Frost depth map minnesota rules 1303 1600.
0 7 x 50 psf 35 psf.
The load increases with the use of heavier roofing material.
The minimum design roof snow load.
The north zone middle zone and the south zone are identified on the roof load zone map above.
Arch 331 note set 13 1 s2014abn 2.
Roof loads are a downward vertical force on the home.
D dead load l live load l r live roof load w wind load s snow load e earthquake load r rainwater load or ice water load t effect of material temperature h hydraulic loads from soil f hydraulic loads from fluids.
The north zone design live load equates to 40 pounds per square foot.
Egress windows for manufactured homes jan.
0 7 x 60 psf 42 psf below line.
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.
Soil classification and bearing table.
This issue of live load vs.
Schilke civil agricultural engineering montana state university august 1989.
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.
This downward imposed load on the home is also known as the snow load.
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.
Victor staley a building official in the town of brewster mass responds.
Ground snow load might seem somewhat confusing until you read the basic premise that is identified in irc section r301 6 which states.
Round footing sizing table.
Snow load map ground load and roof load map per minnesota rules 1303 1700.
However a south roof load zone home cannot be installed in either a middle or north roof load zone.
A clay tiled roof may have a dead load.
The dead load of a typical asphalt shingled wood framed roof is about 15 pounds per square foot.
The minnesota department of commerce requested some initial research be completed to identify opportunities for additional load capacities for these roof components.
The roof snow load is a uniform load on the horizontal projection of the roof.
To calculate roof snow load per residential building code.
Since the late 1960s and early 1970s roof construction for residential structures has consisted of pre manufactured engineered roof trusses.
G see minnesota rules chapter 1335 flood proofing regulations.
The roof shall be designed for the live load indicated in table r301 6 or the snow load indicated.
Square footing sizing table.
