Typical Pole Barn Roof Pitch

Roof pitch can impact both the form and function of your barn.

Typical pole barn roof pitch.

The most essential parts for support are the purlins trusses truss carriers posts and footers. Wider barns will start to need a shallower pitch if the goal is to limit the height of the barn. They are the. Roof pitch roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run.

A 12 12 6 12 combo will work and so will a 16 12 8 12. The slope of a steel building s roof is expressed by a ratio called roof pitch which indicates the number of inches a roof rises vertically for every 12 inches it runs horizontally. Fcp manufactures standard barns with a 3 12 pitch. Pole barns are typically built in increments of 10 or 12 feet such as a 20 by 36 feet.

When snow loads are excessive such as areas of maine or minnesota the structural members need to be designed to carry them. Fcp is one of the few barn manufacturers that offer a 3 12 pitch roof without an upcharge. Support for temporary loads like snow on your pole barn s roof travels through a few parts of the design. On your 30 wide barn that 14 12 7 12 combo should work well.

So the pitch of a roof is determined by how many inches the slope rises for every 12 inches it runs horizontally. There are advantages and disadvantages to consider with both higher and lower roof pitches. Poles are typically set in the ground like fence posts so it s important to use treated lumber and most of the barn s strength comes from the sheet metal siding and roof. Though they add to the cost of the.

If a roof increases in height by four inches for every foot of horizontal run it is considered to have a 4 in 12 pitch or just a 4 pitch talk in terms of pitches and you will always be understood in the roofing universe. Greek says one must keep rafter length in range of 1 9 to 1 7 th of span but as per roman style the standard dimensions are kept about 1 3 to 2 9 th of span with an angle of 23 to 24 degree. My go to pitch combo is usually 14 12 bottom and 7 12 top. The shallower the top pitch the more squatty it will look.

Any pitch higher than 9 12 is considered a steep pitch. The pitch of the roof is determined by the vertical rise in inches for every horizontal twelve inch length. A roof with a low pitch has a flatter look on top while a higher pitched roof has a steeper look. Commonly it is 3 4 th of span as per gothic rafter must be equal to span.

To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. A flat roof would have a 2 12 pitch while the average roof pitch would be between 4 12 and 9 12.