So if you divide your answer of a product of length times height by two you will get the area of a triangle.
How to measure up a roof for shingles.
Find the square footage of the roof.
Record the measurements on your sketch of the roof.
If the existing shingles are standard 3 tab shingles you can get this measurement by taking note of the number of tabs along the eaves and ridges then determine the length in feet.
Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area.
Climb onto your roof and measure each section by its height and width.
The pitch of the roof is the rise over a 12 inch run.
Outside of the u s a degree angle is typically used.
1 roof square 100 square feet.
Alternatively you can purchase a measuring wheel from your local hardware store.
How to measure a roof for shingles step by step the process of accurately measuring a roof involves first making a diagram of the roof to show the basic shapes of each roof plain and how they relate to one another.
You will then have to get the measurement of the rake of the roof.
Required measurements include the following.
If you have a simple gable roof you ll only need to measure and sum up the 2 planes of the roof.
100 1 054 105 4ft 2.
Roof pitch area multipliers.
If you use a measuring tape you ll need someone to hold the tape while you measure the area.
The first step in measuring your roof is to get a basic idea of the area you will be.
Then each measurement is recorded on the diagram applicable to that roof surface.
Use our roof pitch calculator to find the pitch of your roof.
Go up to your roof and physically measure it.
Thus in a simple style house you ll only have to click on the corners.
To do this you need to note that one tab will be equal to 1 foot.
After you have gotten onto your roof it is time to break out your diagram.
How to measure a roof for shingles draw a diagram of your roof.
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.
The length l times the height h of a triangle is twice its area a2.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
Measure the length and width of each portion of the roof multiply length by width for each plane and then add the planes together for the total square footage.
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.
Use your measurements to.
Keep in mind that this estimation won t include any areas like garages or enclosed patios that the roof covers.
L h 2 area calculating an area of a triangle when estimating a roof.
