Sloped Roof Truss

If desiring a clearspan the overall height of the roof trusses should be no more than 12 feet.

Sloped roof truss.

There are two main categories of roofing. 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. Conventional slope roof range between 4 in 12 and 8 in 12. A mono truss roof allows for more sunlight and visual space proper drainage and relatively cheaper.

The rise will be the elevation change over the 12 inches. The run or the base number is 12 inches. Trusses are the more modern engineered method for supporting a roof. The maths behind this number is that it is the square root of rise run 2 1.

The common truss pictured above is an a frame that fits double sloped houses. For example 4 12 pitch means 4 inches of rise in 12 inches of run. A mono truss is a one sloped truss that forms a right angle triangle. A low slope roof is anywhere from 2 in 12 to 4 in 12.

Roof pitch calculator results explained. Roof trusses are actually engineered all of our trusses have an engineer seal on them which means they have met universal standards. That is the roof s rise. It s often used for sheds garages or extension of an existing roof.

Pitch slope the pitch or slope is the incline of the roof expressed as a fraction describing the rise over the run. Measure the outline of the structure to be roofed with a tape measure or get dimensions from a house plan. Roof slope style. Many roof truss fabricators are limited to the ability to build trusses 12 feet in height and for those who can shipping becomes an issue as special permits must be acquired as.

A flat roof has a slope of 2 in 12 or less. Truss a network of pre made usually double sloped beams connected or bridged by a bottom beam or brace. The vertical rise of the top chord per 12 horizontal inches is the roof pitch or slope. Use prefabricated mono trusses for the easiest and best framing on a single slope roof.

The more complex the truss framework is the greater quantity of these joints will be required. Roof slope should be no less than 3 12 to maintain steel warrantees. Select an angle of slope away from a house into an area with good drainage and complementary to an existing house or other building. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge.

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. The same thing is true for the bridge of the truss. These steel joints are needed to support the overall truss.