Roof Pitch Conversion Chart

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Roof pitch conversion chart.

The roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need. Find the inverse tangent of the pitch to find the angle in degrees. 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. Directly measure roof pitch angle and calculate pitch and angle on phone or tablet.

Roof pitch calculator results explained. 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. A 12 12 pitch roof has a pitch angle of 45. Image 1 12 to 12 12 roof pitch 7 12 pitch.

The roof slope factor chart also consists of conversion factors to determine the slope of the roof. Roof pitch is used to describe the slope or angle of the roof. Divide the first part of the ratio by 12 to work out the pitch. Roof pitch degree table.

There are many tools out there. Roof angles and rafter plumb cuts. The headache of using pythagoras and trigonometry can be spared by making use of these charts. 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.

Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. If this isn t practical then perform the same measurement on the underside of the roof. 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. Angle the angle of a roof is the same as the roof s slope except instead of being.

After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. The combination of two numbers are used to display or show the roof pitch. Enter base length to calculate rise and diagonal for current pitch angle. 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.

Select inches to enter decimal inches or millimeters for metric. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. The roof pitch is important in determining the appropriate installation method and how much roofing material will be needed. 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.

For example if you measure 4 inches the pitch of your roof is 4 12. To convert between american roofing ratios and pitch degrees follow these steps. Visit this page on your phone to directly measure pitch and angles. Check your results with the omni roof pitch calculator.

This will give you the rise over run or pitch.