You ll need a level that is 12 or longer and a tape measure.
How to measure roof pitch in sketch up.
Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.
Calculate the roof pitch as the proportion of rise and run.
Use a level against the underside of the rafter you re measuring to get the most accurate value.
In sketchup the tape measure tool the protractor tool and the measurements box enable you to model precisely.
Extend it upward so it is perpendicular to the level.
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.
Measure the vertical distance from roof to level.
0 my avatar is an anachronism.
Hold the 0 mark of the tape measure against the roof.
Pitch rise run 1 5 6 25.
Angle arctan pitch arctan 0 25 14.
Locate the level s 12 inch mark.
Finally you can find the roof pitch in the form of x 12.
It is often compared to slope but is not exactly the same.
To determine the y height measure from the bird s mouth up the calculated slope x in 12 to the top of the rafter.
The top of the ridge beam m y.
Recalculate this value into an angle.
If you mean measure the pitch of a roof you are modeling use the compass tool instead of entering a value for the angle enter the pitch such as 7 12.
Guide lines and guide points are temporary dashed lines used as guides to draw precisely.
Move the tape measure along the the roof until it hits the level at exactly the 12 inch mark.
Roof pitch calculator results explained.
The most precise way to find the roof s slope is by measuring it from the underside.
They do not interfere with regular.
On the roof hold the level perfectly level and measure the height from the roof to the level 12 inches away from where the level touches the surface this will be the rise.
With the tape measure tool you can measure a distance and set precise guide lines or guide points.
To determine the finished height of the ridge beam add the rise m and the y height.
