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.
How to measure a shed roof for shingles.
With that as background you are now ready to estimate how many shingles you will purchase for your roof project.
Before laying down the roof pitch the space it will cover otherwise known as the roofing square needs to be measured.
This is simply 100 square feet of roof.
There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.
A square simply refers to a 10 x 10 square of roofing.
Feet inches enter the width of the building.
The length measured from the outside of the wall to where the upper.
Inches enter the wall to upper pitch start.
Total length of the roof ridge is 96 in.
Inches enter the overhang of the gable.
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.
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.
Feet inches enter the overhang of the eaves.
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.
Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry.
Enter the length of the building.
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.
Finding the size of the roof in squares.
Enter the attic of the home or any part where the roof framing is visible.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
Now we need to calculate the shingles required for the ridge cap.
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.
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.
You will then have to get the measurement of the rake of the roof.