How Do You Determine Roof Slope

First measure 12 inches from one end of the level and make a mark.

How do you determine roof slope.

Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. Here s an easy safe way to determine the pitch from inside your attic. It is often compared to slope but is not exactly the same. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.

Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Locate the level s 12 inch mark. For example if your tape measure found a 6 inch vertical distance to the 12 inch mark on your level the slope is 6 12 or 6 in 12. Access one of the rafters then take the measurement this way.

Use a level against the underside of the rafter you re measuring to get the most accurate value. Write the roof slope as the ratio of rise over run or vertical distance over horizontal distance. If you want to know how to find the pitch of a roof then start with a calculator. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch.

Calculate the roof slope. To determine the finished height of the ridge beam add the rise m and the y height. Outside of the u s a degree angle is typically used. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

Let s assume it is equal to 6 m. Roof pitch calculator results explained. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. This will allow your project to carry the depth and detail in the roof that you wanted as well as make sure that it will maintain a sturdy and effective nature throughout.

Measure the rise of your roof. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Roof slope calculator example of use measure the run length it is the horizontal distance between the roof ridge and the wall of the building. The most precise way to find the roof s slope is by measuring it from the underside.

The top of the ridge beam m y. How roof pitch is calculated to accurately calculate the area of your roof you must first determine its slope or pitch. Even if you want to use a flat roof pitch calculator system you will be able to find one.