Roof Live Load In Minnesota

The minimum design roof snow load.

Roof live load in minnesota.

The roof shall be designed for the live load indicated in table r301 6 or the snow load indicated. 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. G see minnesota rules chapter 1335 flood proofing regulations.

This issue of live load vs. Since the late 1960s and early 1970s roof construction for residential structures has consisted of pre manufactured engineered roof trusses. Egress windows for manufactured homes jan. Roof loads are a downward vertical force on the home.

A clay tiled roof may have a dead load. 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. Ground snow load might seem somewhat confusing until you read the basic premise that is identified in irc section r301 6 which states. The roof snow load is a uniform load on the horizontal projection of the roof.

Frost depth map minnesota rules 1303 1600. 0 7 x pg ground snow load pf roof snow load roof snow load examples. However a south roof load zone home cannot be installed in either a middle or north 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.

The north zone design live load equates to 40 pounds per square foot. This downward imposed load on the home is also known as the snow load. This table says that. To calculate roof snow load per residential building code.

Schilke civil agricultural engineering montana state university august 1989. The load increases with the use of heavier roofing material. The minnesota department of commerce requested some initial research be completed to identify opportunities for additional load capacities for these roof components. 0 7 x 50 psf 35 psf.

Round footing sizing table. Roof load live load design is affected by the shape of the roof whether it is flat curved or pitched. 0 7 x 60 psf 42 psf below line. Victor staley a building official in the town of brewster mass responds.

Snow load map ground load and roof load map per minnesota rules 1303 1700. Square footing sizing table. Soil classification and bearing table. 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.