Multiply the pieces by inches based on exposure then divide by feet.
How to measure roof shingles from the ground.
Exposure comp shingles 5 5 shake 10 tile 13 5 14.
Research other methods for measuring a roof from the ground online or talk to a roofing contractor.
And then i will count the of rows of shingles between the gutter and the peak of the roof and then divide the number by 2 which gives me the height measurement.
I typically begin by counting the of shingles from left to right which gives me the total width of the section in feet.
Visually count how many rows of existing roofing multiply by inches base on exposure then divide by feet.
Measure the horizontal run of the roof surface from the ground a in the third figure below.
You may want to measure a couple to be sure.
Then count the number of shingles to the peak of the roof.
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.
To measure for roofing shingles start by calculating the area of each plane or section of the roof.