1 To 2 Roof Slope

For example given a roof with a rise of 4 feet and a span of 24 feet the pitch is 1 to 6 pitch which can be expressed as the fraction of 1 6.

1 to 2 roof slope.

Roof pitch defined and explained. The term pitch and slope are often used interchangeably which is incorrect. The formula for calculating a 1 2 percent slope can be approached in at least two ways. 0 pitch 1 00x the roof area.

Simply put it s a shallow roof. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. The maths behind this number is that it is the square root of rise run 2 1. 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.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Most roof s have a pitch in the 4 12 to 9 12 range. 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 means for every 12 horizontal units the roof must rise a minimum of one half vertical unit.

A 1 2 percent slope is used for applications that involve drainage of land and concrete such as patios and sidewalks. Pitch is the term used to describe the angle slope or slant of your roof. A roof pitch multiplier also known as a roof pitch factor is a number that when multiplied by the area covered by a sloped roof gives the actual area of the roof. Lapped nonsoldered seam metal roofs with applied lap sealant must have a minimum roof slope of 1 2 12 4 slope.

A 12 to 24 pitch is expressed as 1 2. Generally such roofs have a pitch ranging from 1 2 12 to 2 12. These roofs have a pitch less than 4 12. 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. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. 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. Since this is a flat roof or nearly flat roof.

Standing seam roof systems must have a minimum roof slope of 1 4 12 2 slope. It also figures significantly in conservation farming irrigation where the land most vulnerable to rain erosion gets a 1 2 percent slope. 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.