Once you know this number you can estimate the final price of the materials.
How to figure out how many roof shingles you need.
To estimate how many shingles you ll need first estimate the total square footage of your roof s surface.
Check out our estimating guidelines below and visit choosing the right roof and things you should know for additional information.
If you have decided to do the work on your own we d like to help.
Your roof line is not going to be the same as the square footage in your home.
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Also have a couple of bundles spare on hand to cover wind damage etc.
Once you have these measurements you will need to calculate the area of the roof and then you can see how many shingles you will need.
A square represents 100 square feet of area covered by shingles.
Of the rest of the roof.
100 sq ft 21 shingles per bundle.
For example you will need to figure out the exact number of shingles required to cover the entire roof area.
The shingle count method of the old shingles have not been removed from the roof you can easily use this method to calculate the number of shingles you are going to need.
Thus a key element in your project will be the roofing material calculator and more specifically the roof shingle calculator.
Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.
Compute the area of the whole roof and determine the number of bundles.
3 bundles per square.
Be sure to add a couple of bundles for double first row and capping.
This free roofing calculator estimates the area of a roof and the amount of materials required to replace or build said roof.
Singles are often sold in bundles with three bundles equaling one roof square.
To calculate the size of the roof you need to measure the size of the roof as if it were flat account for roof pitch calculate square footage and finally determine how many squares of material are required for the roof the calculator above can handle all of this simply enter the length width and pitch and it will determine the size of the roof in squares.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
33 square feet per bundle 100 square feet per square 4 nails per shingle.