Figuring out the roof area is the first step to determine how many bundles you ll need to order.
How many shingles to cover a roof.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
It is common to use 3 bundles to a square of shingles.
Asphalt shingles are sold in bundles that can cover 1 3 of a roof square or roughly 33 square feet.
This means that if you are going to be using heavier shingles you will need to have more bundles to cover each square foot.
Although roofing projects are estimated and sold by the square roofing material is often not sold in 1 square increments.
A square of shingles would be a minimum of three bundles.
Our felt roof shingles calculator has been designed to work for a 2 sided apex roof using roof shingles that cover 3m2 per pack.
When shingles come three bundles to the square there are 29 standard sized shingles 12 in.
Heavier three tabbed shingles and laminated shingles require four or sometimes five bundles to cover a square.
However if you are using heavier shingles you will require 4 to 5 bundles for a square.
However shingles are packaged in a way that they are light enough for the average person to carry around.
A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
A square of roof is approximately 100 square feet of space on top of your home whether it runs at a slant horizontal to the yard or vertically toward a chimney or gable.