Roof Slope Factor Calculator

Roof pitch calculator results explained.

Roof slope factor calculator.

Set the level on the edge of the speed square as shown below then place the heel of the speed square on a rafter or gable edge of the roof. You can also calculate roof pitch even without using a roof slope calculator. Outside of the u s a degree angle is typically used. Angle the angle of a roof is the same as the roof s slope except instead of being.

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. The calculator above can handle much of this math. Measure with a speed square.

Then you ll be able to measure slope from an unfinished attic space under the roof. Feet the area of a hip roof equals the area of a gable roof with the same dimensions. To obtain an accurate roof pitch measurement properly measure the rise and run. Use the following formula which also describes a right triangle.

All you need is a simple trigonometry equation and a calculator that has a square root button. If you need to find out the area of the roof such as to purchase roofing knowing and using the factor will assist you greatly in determining the exact square footage. Rafter rise run this formula is from the pythagorean theorem. The pitch of this roof is 4 8 12.

The maths behind this number is that it is the square root of rise run 2 1. Enter 6 into the calculator slope factor 1 1180 multiply the roof length by the gable wall length 40 24 960 multiply this amount by the slope factor 960 1 1180 1073 28 the area of this roof 1073 3 sq. Here are the equations you may use to solve for the length of the slope and the rafter. To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page.

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. Calculating the roof slope factor is not that difficult. The roof pitch factor is also used to calculate the length of common rafters. The slope of the roof provides the rise and the run to be plugged into the equation.

A speed square and level can be used to easily find the pitch of a roof. In that case the multiplier is multiplied by the run of the rafter the horizontal distance that will be covered by. A roof pitch of 4 in 12 4 12 has a rise of 4 and a run of 12.