1 2 On 12 Roof Slope

The combination of two numbers are used to display or show the roof pitch.

1 2 on 12 roof slope.

This forms an angle of 18 5 between the horizontal section and the roof and creates a gentle incline that is seen as a midpoint between a low pitch and medium pitch roof. Roof pitch is a term describing how steep or flat your roof slope is. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. For example if you measure 4 inches the pitch of your roof is 4 12.

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. Most roof s have a pitch in the 4 12 to 9 12 range. The table below shows common roof pitches and the equivalent grade degrees and radians for each. Asphalt shingles continue to be the most widely installed roof covering option in north america.

A 4 12 is a roof slope that rises by 4 inches for every 12 inches across. That means the roof doesn t shed water as easily as steeper roofs which is why choosing the right type of roofing material is so important. 0 pitch 1 00x the roof area. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Once you ve figured out the pitch of your roof you can consult the following chart to discover the slope factor and hip valley factor. 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. Since this is a flat roof or nearly flat roof.

They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. The most common slopes are. You can go by the measurements taken by walking the roof. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

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. 3 12 1 2 12 and 1 4 12. Pitch of roof slope factor valley hip factor. A 4 12 slope is enough to accommodate water runoff but is not suitable for regions that are.