1 32 Roof Pitch

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.

1 32 roof pitch.

The combination of two numbers are used to display or show the roof pitch. 0 pitch 1 00x the roof area. 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. 7 12 roof pitch 30 angle 30 26 degrees details.

Commonly used roof pitches were given names such as greek. Visually this roof appears flat. 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 ratio of the ridge height to the width of the building span and as a ratio of the rafter length to the width of the building.

The ridge height is 1 9 to 1 7th the span an angle of 12 5 to 16. You can go by the measurements taken by walking the roof. Sometimes pitch is also expressed in. 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.

If a roof rises 1 in a length of 12 this is 1 12 roof pitch. 1 pitch 1 01 2 pitch 1 02 3 pitch 1 03 4 pitch 1 05 5 pitch 1 085 6 pitch 1 12 7 pitch 1 16 8 pitch 1 21 9 pitch 1 25 10 pitch 1 31 11 pitch 1 36 12 pitch 1 42. This pitch might be as low as 1 12. Roof pitch refers to the slope which the rafter creates.

Often you express roof pitch as the ratio between the rise and the run in the form of x 12. A roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. 1 12 roof pitch angle 4 76 degrees. 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.

The best roof pitch depends on the style of roof you are going for. Roofs on victorian era houses were often sharply angled with a steep pitch. If you a looking for a sleek modern style a not entirely flat roof with a pitch of 1 40 should be used. Historically roof pitch was designated in two other ways.

For a gothic style the rafters must equal the span 60 while an elizabethan style requires the rafters to be longer than the span. Think of a classic addams family haunted house with its soaring peaks and you have a. 8 12 roof pitch 33 angle 33 69 degrees details 9 12 roof pitch 37 angle 36 37 degrees details. It was fashionable for modern style homes built in the 1960s to have little pitch just a barely negligible slope to help drain water.