The live load depends on the maximum snow load in your area.
Patio roof deadload.
But isn t it more accurate to figure the weight of snow and roofing materials by measuring along the actual length of the rafter.
For ground snow loads greater than 20 pounds per square foot the roof load is equal to 70 of the product of the exposure thermal.
Determine the dead load of the roof.
The dead load on a roof is the weight of the roof structure itself along with any permanently attached materials or structures on the roof so it must be designed first of all to support itself.
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Use and dimensions of a ll rooms adjacent to the patio cover.
The patio roof which is raised with some brackets requires a custom barge cap.
These values are expressed in pounds per square foot psf and are found in the asce.
These plans should include a roof framing plan foundation plan elevations cross sections and connection details.
Thus as the roof gets steeper the rafter gets longer and the weight of roofing materials increases.
Patio roof design generally comes with the geometric shape.
Three copies of any other plan.
This would be the ceiling materials under the roof and any permanent installations such as hvac components.
I often see roof loads calculated based on the horizontal run of the roof.
You can go with opaque twin wall sheeting if you want to get some natural light for your patio.
The dead load is constant and is estimated as 10 pounds per square foot for wood framed construction.
Patio cover kits.
Floor plan for patio covers within 6 0 of a dwelling include a floor plan and show the following information.
This includes the combined weights of all of the individual roof materials and anything attached to it permanently.
This information is available from your building inspector or planning department.
The structural supports of roofs and marquees shall be designed to resist wind and where applicable snow and earthquake loads in addition to the dead load of construction and the appropriate live loads as prescribed in this section or as set forth in table 1607 1 the live loads acting on a sloping surface shall be assumed to act vertically on the horizontal projection of that surface.
For roofs that are flat and with ground snow loads lower than 20 pounds per square foot the roof snow load is equal to 70 of the product of the exposure thermal and importance factors and the ground snow load.
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The roof load is composed of a dead load and a live load.