How To Find The Slope Of A Roof

To find the angle of a roof in degrees convert the pitch to a slope then convert to degrees by finding the arc tangent of the slope.

How to find the slope of a roof.

If this isn t practical then perform the same measurement on the underside of. 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. Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. Roof pitch calculator results explained.

Once you know the roof slope multiplier for a particular slope you can use it to find the actual area of any size sloped roof with the same slope. The most precise way to find the roof s slope is by measuring it from the underside. If it doesn t have this mark use a tape measure to locate. Calculate the roof slope.

How to convert roof pitch to degrees. 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. Write the roof slope as the ratio of rise over run or vertical distance over horizontal distance. Rise run rise run slope.

Locate the level s 12 inch mark. Access one of the rafters then take the measurement this way. When you want to replace or repair your roof you need to know about the slop of the roof the reason for this is the simple fact that roof slope can affect the overall cost of replacing or repairing the roof. There are a number of ways that you can calculate the roof slope of your home and you need to be aware of this.

This forms an angle of 18 5 between the horizontal section and the roof and creates a gentle incline that is seen as a midpoint between a low pitch and medium pitch roof. To do this simply convert the rise and run as a fraction to a decimal form eg. A 4 12 is a roof slope that rises by 4 inches for every 12 inches across. So in this case for every 12 inches the roof goes across horizontally b while rising 6 inches a there s actually 13 416 inches of roof c.

Angle the angle of a roof is the same as the roof s slope except instead of being.