1 To 2 Roof Slope

It also figures significantly in conservation farming irrigation where the land most vulnerable to rain erosion gets a 1 2 percent slope.

1 to 2 roof slope.

Low pitched roofs are generally difficult to maintain and you need special materials to prevent leaks. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. Roof pitch designations are comprised of two numbers indicating a ratio. 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.

Pitch is the term used to describe the angle slope or slant of your roof. A 1 2 percent slope is used for applications that involve drainage of land and concrete such as patios and sidewalks. Lapped nonsoldered seam metal roofs with applied lap sealant must have a minimum roof slope of 1 2 12 4 slope. These roofs have a pitch less than 4 12.

The term pitch and slope are often used interchangeably which is incorrect. 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. The formula for calculating a 1 2 percent slope can be approached in at least two ways. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

Since this is a flat roof or nearly flat roof. 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. Standing seam roof systems must have a minimum roof slope of 1 4 12 2 slope. 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.

You can go by the measurements taken by walking the roof. Generally such roofs have a pitch ranging from 1 2 12 to 2 12. Or the colon can replace the slash as in 2 12 or 7 12. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.

Most roof s have a pitch in the 4 12 to 9 12 range. A 12 to 24 pitch is expressed as 1 2. Simply put it s a shallow roof. This means for every 12 horizontal units the roof must rise a minimum of one half vertical unit.

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. 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. 0 pitch 1 00x the roof area.