You will need to go up on top.
How to measure to roof.
S1 s2 and s3.
Measure all your hips valleys ridges eaves and rakes.
How to measure a roof in the sample below you will have 5 different calculations and that should match the number of sections you wrote down when you started.
For square or rectangular roofs you ll only need to record the length and width.
As you can see s1 and s3 are the same size but you still need to document all measurement points to verify your material calculation accuracy.
You will mark your level 12 inches from one of the ends.
Add all your measurements together to get your total square footage.
Since s2 is now a rectangle simple l x w is all that is required.
Hold that end on the roof and bring your level up until the level bubble is centered.
If the pitch of the roof is not that steep you won t have to worry too much about following.
Extend your tape measure along the outer edges of the roof to find its length and width in feet.
The easiest way to measure this section is to divide it up into three different sections.
For sloped sectional roofs write down the dimensions of each individual plane.
Outline the roof at the points that are on the same level or elevation to ensure that you re getting an accurate calculation of your roofing measurements.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
Measuring for a metal roof begins with getting a ladder.
First measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface.
To measure the slope of a roof you will need a level and a measuring tape.
You should do this with someone that can hold one end of the tape measure so you can go to the other ends.
Complete one side at a time before moving on to other areas.