2 12 Roof Pitch Angle

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.

2 12 roof pitch angle.

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. 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. The combination of two numbers are used to display or show the roof pitch. 45 this is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations.

Enter any angle or fraction of angle to find pitch. The roof pitch angle greatly factors into the replacement cost of the roof. This is the slope of geometry stairways and other construction disciplines or the trigonometric arctangent function of its decimal. Pitch is the term used to describe the angle slope or slant of your roof.

The pitch of a roof is its vertical rise over its horizontal span. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. If a roof rises 2 in a length of 12 this is 2 12 roof pitch. 2 12 roof pitch angle 9 46 degrees.

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. A steep roof usually sheds water quickly which is quite difficult to work on. Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. Most roof s have a pitch in the 4 12 to 9 12 range.

Enter any pitch or fraction of pitch to find angle. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof. Roof pitch designations are comprised of two numbers indicating a ratio. Often you express roof pitch as the ratio between the rise and the run in the form of x 12.

Or the colon can replace the slash as in 2 12 or 7 12. In the roofing trade the go to term is pitch and it is expressed in terms of 12 inches so the pitch of a roof is determined by how many inches the slope rises for every 12 inches it runs horizontally. However most often a ratio of pitch also fraction is slang used for the more useful slope of rise over run of just one side half the span of a dual pitched roof. Roof pitch degree table.

Generally such roofs have a pitch ranging from 1 2 12 to 2 12. Roofs having a lower pitch have a greater chance of creating water leaks as well as ice damming and so they require an intensive waterproofing system.