Roofs with a pitch of 4/12 are approximately **18.4 degrees**, depending on how exact you’d like to be in your measurement. Check out our roof angle chart for more examples of the exact angles (expressed in degrees) of common roof pitches.

Contents

- 1 How do you calculate a 4/12 pitch?
- 2 How do you convert pitch to degrees?
- 3 What roof tiles go down to 10 degrees?
- 4 What angle is a hip roof?
- 5 What is the angle of a hip rafter?
- 6 How tall is a 4/12 truss?
- 7 How is pitch calculated?
- 8 How long is a 4/12 pitch roof?
- 9 What is a 8/12 pitch in degrees?
- 10 What is a 30 degree roof pitch?

## How do you calculate a 4/12 pitch?

On the roof, hold the level perfectly level, and measure the height from the roof to the level 12 inches away from where the level touches the surface; this will be the rise. For example, if the end of a level is 4″ above the roof at a point 12″ away from where it meets the surface, then the pitch is 4:12.

## How do you convert pitch to degrees?

Conversion Formula for Standard Roof Pitch to Degrees

- To convert a roof slope expressed as “X-in-12″ to a roof slope expressed in degrees, find the arctangent of (rise/run).
- Divide the rise (that’s the “X”, yours will vary) by the run (always 12).
- Using a scientific calculator, find the arctangent of the result.

## What roof tiles go down to 10 degrees?

The G10 is one of our outstanding clay flat tiles and what make the G10 special is that it can be used on low pitch roofs as low as 10 degrees.

## What angle is a hip roof?

Parts of a Hip Roof Hip rafters are nailed at a 45 degree angle to the ridge board down to the four outside corners of the building. Also used to nail the top of the jack rafters. Jack rafters are nailed to the hip and slope down to the exterior walls. They have the same seat and tail cut as a common.

## What is the angle of a hip rafter?

The hip rafter intersects this 90° angle at a 45° angle and runs diagonally down to the building corner. The king commons at the ends of the ridge are the same length as those at the sides.

## How tall is a 4/12 truss?

and zero 16ths) truss on a 4/12 pitch would be 33.75 ft.

## How is pitch calculated?

How to Calculate Roof Pitch in Degrees

- First, you need to measure the run of your roof.
- Next, you need to figure out the rise.
- Now, divide the rise by the run.
- Then, divide 1 by your tangent.
- Finally, multiply this result by 180/π and you’ve calculated your roof pitch!

## How long is a 4/12 pitch roof?

This ratio is always expressed as inches per foot. A roof that rises 4 inches for every 1 foot or 12 inches of run is said to have a “4 in 12” slope. If the rise is 6 inches for every 12 inches of run, then the roof slope is “6 in 12.” The slope can be expressed numerically as a ratio.

## What is a 8/12 pitch in degrees?

If a roof rises 8″ in a length of 12″, this is 8/12 roof pitch. 8/12 roof pitch angle = 33.69 degrees.

## What is a 30 degree roof pitch?

A 30° roof pitch is roughly the same as a 7/12 roof pitch. To convert from degrees to the American ratio: Find the tangent of the angle, tan(angle). This gives you the pitch of the roof.