Outside of the u s a degree angle is typically used.
How to measure roof for shingles from ground.
To sum it up each individual tab on a 3 tab shingle measures approximately 12 wide by 6 high.
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.
Take the following steps to measure your roof from the ground.
Determine your roof pitch see roofpitch if you need help.
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.
From the 1 ft 0 30 m spot you marked on the level measure upward to the rafter.
Go all the way around your house and fill in your outline with your measurements making sure to account for overhang.
Measure both the width gable side and the length eave gutter side.
Then determine the area of the roof as if it were flat.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.
Measure the horizontal run of the roof surface from the ground a in the third figure below.
Make a outline of your roof on paper.
To do this you need to note that one tab will be equal to 1 foot.
Thus in a simple style house you ll only have to click on the corners.
Multiple the number of shingles times the width of each shingle which you can measure at ground level to get b in the figure below.
Measure the pitch of your roof in the attic.
Hold the end you measured from against the bottom of a rafter so it s sticking straight out horizontally and is level.
Remember that the length and width need to be found for the roof not the house so take into account that the roof overhangs the building.
Then count the number of shingles to the peak of the roof.
Measuring hip roofs dormer roofs or roofs on hillside homes from the ground requires experience and special equipment.
Place the end hook of the tape on the corner and run it all the way to the opposite corner of the house.
Measure your roof accurately use a measuring tape preferably 50 or 100 feet long and get exact ground dimensions of your house.
But you can measure a gable or flat roof from the ground with the help of.
You will then have to get the measurement of the rake of the roof.
Start by measuring the length and width of the roof in feet as you re standing on the ground.