How Do You Determine Roof Slope

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.

How do you determine roof slope.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. 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. Use a level against the underside of the rafter you re measuring to get the most accurate value. 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.

The top of the ridge beam m y. Calculate the roof slope. Roof pitch calculator results explained. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.

To determine the finished height of the ridge beam add the rise m and the y height. Measure the rise of your roof. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. How roof pitch is calculated to accurately calculate the area of your roof you must first determine its slope or pitch.

Locate the level s 12 inch mark. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Outside of the u s a degree angle is typically used. 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. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. The most precise way to find the roof s slope is by measuring it from the underside. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch.

In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Even if you want to use a flat roof pitch calculator system you will be able to find one. Here s an easy safe way to determine the pitch from inside your attic.

Write the roof slope as the ratio of rise over run or vertical distance over horizontal distance. It is often compared to slope but is not exactly the same. First measure 12 inches from one end of the level and make a mark.