With that as background you are now ready to estimate how many shingles you will purchase for your roof project.
How to measure a shed roof for shingles.
Times number of tabs per foot 7 tabs equals 56 tabs divided by 3 tabs per shingle 3 tabs equals the number of shingles required 19 shingles divide by shingles per bundle 26 shingles bundles required 1 bundle.
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.
Feet inches enter the overhang of the eaves.
Before laying down the roof pitch the space it will cover otherwise known as the roofing square needs to be measured.
Inches enter the overhang of the gable.
Now we need to calculate the shingles required for the ridge cap.
Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed.
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.
To do this you need to note that one tab will be equal to 1 foot.
5 feet 1 5 m x 4 feet 1 2 m 2 10 square feet 0 93 m 2.
Estimating shingles 1 find the square footage of the roof.
Inches enter the wall to upper pitch start.
Note that in the last 3 4 years costs of roof shingles and many accessories have gone down by an average of 18 20 currently the us national average for benchmark architectural shingles is around 74 51 square or 25 per bundle.
The base is the bottom edge of the roof while the height is what you measure from the base to the top of the triangle in a straight perpendicular line from the bottom edge of the roof.
A square simply refers to a 10 x 10 square of roofing.
Enter the attic of the home or any part where the roof framing is visible.
This is simply 100 square feet of roof.
So if the base is 5 feet 1 5 m and the height is 4 feet 1 2 m then you re equation would look like this.
Finding the size of the roof in squares.
Total length of the roof ridge is 96 in.
Enter the length of the building.
The length measured from the outside of the wall to where the upper.
There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
You will then have to get the measurement of the rake of the roof.