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.
How do you measure your roof pitch.
Mark a spot on the level 12 inches from one end.
After measuring the slope estimate the roof pitch by dividing the slope by 2 if you have a simple gable roof.
Along with the roof s pitch you ll use these 2 dimensions to calculate the roof s overall square footage.
Use one of these three methods below to calculate your roof s pitch.
Record these values as roof rise over run with the vertical measurement listed first and the horizontal second.
Here s an easy safe way to determine the pitch from inside your attic.
Then put a visible mark at 12.
The easiest way to do this is by accessing a rafter in your attic if you can.
If you need to make the mark simply start your measurement from one end of the level.
This mark is where you ll place the tape measure when you re on the roof.
How to measure roof pitch.
Pitch measurement method 1.
One method to find the pitch is to climb on the roof and measure the rise for a 12 run.
Climb on the roof and measure.
Even if you want to use a flat roof pitch calculator system you will be able to find one.
The next step is to measure the pitch also referred to as the roof slope of the roof deck.
Knowing the pitch of your roof is useful when designing an addition installing skylights or cutting new rake boards.
However if you have a more complex roof you.
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.
This will allow your project to carry the depth and detail in the roof that you wanted as well as make sure that it will maintain a sturdy and effective nature throughout.
Record these measurements in your notebook.
You ll need to figure out the vertical distance also known as the rise over a 12 horizontal segment also known as the run.
You ll need a level and a tape measure or ruler.
Three easy ways to measure your roof s pitch.
To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil.
If it s four inches you have a 4 in 12 pitch and so forth for other measurements thereby determining your roof pitch.
You ll need a level that is 12 or longer and a tape measure.
Using ruler and tape you can do it anyway of these ways.
Climb up on your roof.
On a ladder beside the roof place the level a foot or so up the roof hold it level and measure.