How Do You Determine Roof Slope

If you want to know how to find the pitch of a roof then start with a calculator.

How do you determine roof slope.

How roof pitch is calculated to accurately calculate the area of your roof you must first determine its slope or pitch. Calculate the roof slope. Measure the rise of your roof. It is often compared to slope but is not exactly the same.

To determine the finished height of the ridge beam add the rise m and the y height. The most precise way to find the roof s slope is by measuring it from the underside. Outside of the u s a degree angle is typically used. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch.

Write the roof slope as the ratio of rise over run or vertical distance over horizontal distance. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.

Even if you want to use a flat roof pitch calculator system you will be able to find one. To determine the y height measure from the bird s mouth up the calculated slope x in 12 to the top of the rafter. Roof pitch calculator results explained. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

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. 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. Let s assume it is equal to 6 m. 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.

The top of the ridge beam m y. Access one of the rafters then take the measurement this way. Locate the level s 12 inch mark. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. 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. First measure 12 inches from one end of the level and make a mark.