2 10 Roof Pitch

Roof pitch defined and explained.

2 10 roof pitch.

There are two suggested ways to measure a roof pitch. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely makes the cut off for one of the most popular roofing material options. Often you express roof pitch as the ratio between the rise and the run in the form of x 12.

Drag sliders to animate the results and diagram. Asphalt shingles minimum roof slope roof pitch r905 2 2. Roof pitch refers to the slope which the rafter creates. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.

Roof pitch or slope tells you how many inches the roof rises for every 12 inches in depth. Or the colon can replace the slash as in 2 12 or 7 12. Roof pitch designations are comprised of two numbers indicating a ratio. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Simply mark a. Enter run the flat level length then click pitch angle or rise to select then enter other known dimension angle or pitch. This means that the rise of the slope goes up or down 8 inches for every 12 inches. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.

An example of a roof pitch would be a 6 12 pitch which means that the roof rises 6 for every 12 inward towards the peak or ridge. To put it in perspective the angle of this slope would be around 30 degrees. Sometimes pitch is also expressed in. The combination of two numbers are used to display or show the roof pitch.

You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. A roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. The triangle diagram will be re drawn to scale with all dimensions marked. On blue prints architects engineers usually display the pitch of a roof in the format shown on the image where number 4 represents a rise and number 12 represents a length.

Asphalt shingles can only be installed on roof slopes of 2 12 or greater. The first is from the top of the roof. An example for a steep sloped roof is 8 12. The slope of a roof or pitch is determined by how many inches the roof rises over 1 foot or 12 inches.

Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. This means for every 12 horizontal units the roof must rise a minimum of 2 vertical units.