Roof Pitch Conversion Chart

For example if you measure 4 inches the pitch of your roof is 4 12.

Roof pitch conversion chart.

After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. Set bevel gauge directly from phone or tablet screen. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. A 10 slope roof should not be confused with a 10 pitch roof as a 10 slope roof means that the roof rises by ten inches for every foot of run.

Roof angles and rafter plumb cuts. The combination of two numbers are used to display or show the roof pitch. Marvel at your mathematical. Find the inverse tangent of the pitch to find the angle in degrees.

Roof pitch calculator results explained. Check your results with the omni roof pitch calculator. On blue prints architects engineers usually display the pitch of a roof in the format shown on the image where number 4 represents a rise and number 12 represents a length. The roof slope factor chart also consists of conversion factors to determine the slope of the roof.

The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. The headache of using pythagoras and trigonometry can be spared by making use of these charts. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. Select inches to enter decimal inches or millimeters for metric.

There are many tools out there. If this isn t practical then perform the same measurement on the underside of the roof. To convert between american roofing ratios and pitch degrees follow these steps. Simply locate a roof rafter board place the end of the level against the bottom edge and measure from the 12 inch mark vertically to the bottom edge of the rafter.

A 12 12 pitch roof has a pitch angle of 45. Angle the angle of a roof is the same as the roof s slope except instead of being. Enter base length to calculate rise and diagonal for current pitch angle. Directly measure roof pitch angle and calculate pitch and angle on phone or tablet.

Visit this page on your phone to directly measure pitch and angles. Image 1 12 to 12 12 roof pitch 7 12 pitch. 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 is used to describe the slope or angle of the roof.

Usually they come in the form of a roof pitch diagram chart but other times it will be presented to you in a conversion format. This will give you the rise over run or pitch. Divide the first part of the ratio by 12 to work out the pitch. What is a roof pitch chart.

In essence a roof pitch chart is provided as a rough guide usually by a roofing company to help you see what the average roof pitches tend to be.