1 12 Slope Roof

1 12 roof pitch angle 4 76 degrees.

1 12 slope roof.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. A very low pitch roof can also be done in metal. 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. Thus pitch is typically greater in areas of high rain or snowfall.

A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. 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. The exact roof slope in degrees is given by the arctangent.

I have read some articles that state this type of metal will work fine and others that implicitly state not to use metal for such a low pitch. 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. Roof slopes are identified using the gradient method described above where the rise varies but the run is usually 12. Definitions vary on when a roof is considered pitched.

Simply put it s a shallow roof. Roof pitch defined and explained. Pitch is the term used to describe the angle slope or slant of your roof. Although there s isn t any standard pitch of a roof used on all kinds of sloped roofs you can determine the range of pitches by using a roof angle calculator and by considering factors like the local climate and roofing materials.

In degrees 10 2 in 12 or 1 in 6 is considered a minimum. Metal roofing on 1 12 pitch the pitch is only 1 12. Most roof s have a pitch in the 4 12 to 9 12 range. Low slope roofs have gradients of 3 12 or less.

At 1 12 pitch you are right at the threshold where standing seam becomes impermissible i mean true standing seam with a rolled lock seam and soldered flat seams must be used. A soldered flat seam metal roof won t be cheap and must be done by an artisan but it lasts a very long time. Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow. In some very steep roofs you may see the gradient inverted so that the run varies but the rise is held as 12.

The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. If a roof rises 1 in a length of 12 this is 1 12 roof pitch.