How To Measure Roof Pitch From Inside

So measuring on the roof 12 horizontal then measuring the distance to the roof will determine the pitch of your roof.

How to measure roof pitch from inside.

If this distance measures 4 inches you have a 4 in 12 pitch. You can also measure roof pitch safely from the inside of your attic. 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. Using a 12 ruler or marking a 12 distance on a straight edge and holding it level.

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. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. Roof pitch calculator results explained. A roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch.

8 inches and you have an 8 in 12 pitch. Next use the pitch to look up the pitch multiplier for the roof online. There are three different ways to find the pitch of a roof both from inside and outside of the home. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.

If you do need to calculate the pitch an estimate or shortcut is usually more practical than measuring the roof s overall dimensions. How to measure roof pitch. Then on the underside of the roof in the attic place the end of the. 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.

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. Placing a ladder near the roof you will put a level a foot or so up on the roof hold it level and measure from the 12 inch mark straight down. Knowing the pitch of your roof is useful when designing an addition installing skylights or cutting new rake boards.

Watch more mastered in a minute videos. Here s an easy safe way to determine the pitch from inside your attic. Divide the slope by two to get the pitch. Here are a couple examples.

Using ruler and tape you can do it anyway of these ways. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. If you need to find the pitch of an existing roof all you need is a level and a tape measure.