Since transportation is a major cost factor expect prices to vary by location.
How many bundles do i need for my roof.
It is often compared to slope but is not exactly the same.
So in the gable roof example above you would need 240 squares of underlayment.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.
This means you would need 240 squares of shingles to cover that roof.
For a new roof you will also need the same amount of underlayment.
When you are using 3 bundles for a square you will be getting 29 standard shingles in each bundle.
It is common to use 3 bundles to a square of shingles.
Then add 10 to the number to account for waste.
Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square.
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.
Asphalt shingles range in price from about 25 per bundle for a standard 3 tab style to around 50 75 or more for an upgraded architectural style.
Singles are often sold in bundles with three bundles equaling one roof square.
For instance a 7 12 roof pitch means that the roof rises 7 inches for every.
There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.
To estimate roofing materials start by finding the total square footage of the roof and divide the number by 100 to determine the number of squares in the roof.
Like most of your neighbors you plan to have the shingles installed by a professional roof.
For a new roof you will also need the same amount of underlayment.
A square represents 100 square feet of area covered by shingles.
So in the gable roof example above you need 240 squares of underlayment.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
Underlayment usually comes in rolls of 4 squares each.
However if you are using heavier shingles you will require 4 to 5 bundles for a square.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
With that as background you are now ready to estimate how many shingles you will purchase for your roof project.
The most common type of shingle called a three tab or strip shingle is generally packaged three bundles per square.