For a roof with the ridge above one wall the span is the same as the run.
Measuring roof pitch from the ground.
Use a simple formula to approximate the square footage of triangular areas where two sections of a roof meet at each.
Measure the distance from where you re standing to the face of the wall you walked away from.
The first technique is referred to as the shingle count method which is used for estimating the measurements of all rectangular shaped sections of a roof.
As a tip if you.
For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally.
The most precise way to find the roof s slope is by measuring it from the underside.
To sum it up each individual tab on a 3 tab shingle measures approximately 12 wide by 6 high.
The pitch is the steepness of the roof.
The slope is the same as the pitch.
Stretch your tape measure along the walls from end to end.
Take the following steps to measure your roof from the ground.
Research other methods for measuring a roof from the ground online or talk to a roofing contractor.
Measure the height from the ground to the.
Make a outline of your roof on paper.
Determine your roof pitch see roofpitch if you need help.
Measuring your roof from the ground 1.
Find the length and width of the building s exterior walls.
For more complex roofs you may need to calculate it section by.
To find the pitch of your roof you ll first.
Access one of the rafters then take the measurement this way.
Use a pitch.
For example a 3 pitch or 3 in 12 pitch or 3 12 pitch all mean that the roof rises 3 inches for every 12 inches of it s horizontal run.
Calculate the pitch of the roof.
Roof pitch is represented in inches rise of 12 inches run.
Go all the way around your house and fill in your outline with your measurements making sure to account for overhang.
Use a level against the underside of the rafter you re measuring to get the most accurate value.