Run Of The Roof

Roof pitch calculator results explained.

Run of the roof.

This article defines different types or degrees of roof slope and explains how roof slope ptich angle or grade slope are measured expressed. Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. 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. The run is the distance from the outside of the wall to the inside of the ridge.

The run is the horizontal distance of only a section of the roof. It can be assessed in two ways either as the angle the rafter makes with the horizontal or the proportion between the rise and the run of the roof. A low slope roof is anywhere from 2 in 12 to 4 in 12. Roof pitch is simply the slope created by the rafter.

A flat roof has a slope of 2 in 12 or less. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Conventional slope roof range between 4 in 12 and 8 in 12. Angle the angle of a roof is the same as the roof s slope except instead of being.

There are two main categories of roofing. We give the required roof slopes for different types of roofing materials and we illustrate several methods by which the slope or pitch of a roof is easily measured. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. Roof pitch is indicated in inches rise of 12 inches run for instance a 3 in 12 pitch or 3 pitch or 3 12 pitch all represented that the roof rises 3 inches means for every 12 inches of its horizontal run.

Anything more than 9 in 12 is considered steep. Roof slope definitions measurement methods. A roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. For example assume you have a standard roof and the span of the building is 26.

The rise is the distance from the top of the roof to the bottom. To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. Here is an online rise and run calculator which helps to calculate pitch slope and angle with the help of rise and run values. The run always remains constant at 12 inches.

Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. Our roof rafter calculator tools are handy for calculating the number of rafters needed rafter length calculator lineal feet of rafter board feed in ridge and sub facia and the total board feet in the roof. If you have a non standard roof such as an unequally pitched gable roof the span will be divided by the total number of sides.