2 10 Roof Pitch

Roof pitch defined and explained.

2 10 roof pitch.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. This means for every 12 horizontal units the roof must rise a minimum of 2 vertical units. To put it in perspective the angle of this slope would be around 30 degrees.

The slope of a roof or pitch is determined by how many inches the roof rises over 1 foot or 12 inches. The combination of two numbers are used to display or show the roof pitch. Simply mark a. The first is from the top of the roof.

Pitch is the term used to describe the angle slope or slant of your roof. Asphalt shingles minimum roof slope roof pitch r905 2 2. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. 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.

Roof pitch designations are comprised of two numbers indicating a ratio. 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. This means that the rise of the slope goes up or down 8 inches for every 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. Drag sliders to animate the results and diagram. The triangle diagram will be re drawn to scale with all dimensions marked. An example for a steep sloped roof is 8 12.

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. 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. Sometimes pitch is also expressed in. Enter run the flat level length then click pitch angle or rise to select then enter other known dimension angle or pitch.

Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. Or the colon can replace the slash as in 2 12 or 7 12. 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. Roof pitch refers to the slope which the rafter creates.

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. Roof pitch or slope tells you how many inches the roof rises for every 12 inches in depth.