Sloped Roof Truss

A low slope roof is anywhere from 2 in 12 to 4 in 12.

Sloped roof truss.

These steel joints are needed to support the overall truss. A roof pitch multiplier also known as a roof pitch factor is a number that when multiplied by the area covered by a sloped roof gives the actual area of the roof. Roof slope style. If desiring a clearspan the overall height of the roof trusses should be no more than 12 feet.

A mono truss is a one sloped truss that forms a right angle triangle. A mono truss roof allows for more sunlight and visual space proper drainage and relatively cheaper. The run always remains constant at 12 inches. There are two main categories of roofing.

Roof slope should be no less than 3 12 to maintain steel warrantees. The rise will be the elevation change over the 12 inches. Use prefabricated mono trusses for the easiest and best framing on a single slope roof. Truss a network of pre made usually double sloped beams connected or bridged by a bottom beam or brace.

Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. A flat roof has a slope of 2 in 12 or less. The more complex the truss framework is the greater quantity of these joints will be required. For example a slope of 6 12 means for every 12 inches of horizontal distance the slope of the roof will rise 6 inches vertically.

Conventional slope roof range between 4 in 12 and 8 in 12. The same thing is true for the bridge of the truss. The maths behind this number is that it is the square root of rise run 2 1. Angle the angle of a roof is the same as the roof s slope except instead of being.

For example 4 12 pitch means 4 inches of rise in 12 inches of run. Trusses are the more modern engineered method for supporting a roof. Measure the outline of the structure to be roofed with a tape measure or get dimensions from a house plan. The vertical rise of the top chord per 12 horizontal inches is the roof pitch or slope.

Roof pitch calculator results explained. Pitch slope the pitch or slope is the incline of the roof expressed as a fraction describing the rise over the run. The run or the base number is 12 inches. Select an angle of slope away from a house into an area with good drainage and complementary to an existing house or other building.

That is the roof s rise. It s often used for sheds garages or extension of an existing roof. The common truss pictured above is an a frame that fits double sloped houses.