For instance a 7 12 roof pitch means that the roof rises 7 inches for every.
How many bundles do i need for my roof.
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.
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.
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.
However if you are using heavier shingles you will require 4 to 5 bundles for a square.
The most common type of shingle called a three tab or strip shingle is generally packaged three bundles per square.
A square represents 100 square feet of area covered by shingles.
There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.
It is often compared to slope but is not exactly the same.
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.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
To properly calculate how many bundles of shingles are needed to roof your home you need to calculate the total square footage of the roof and convert it to squares.
So in the gable roof example above you need 240 squares of underlayment.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
This means you would need 240 squares of shingles to cover that roof.
Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run.
So in the gable roof example above you would need 240 squares of underlayment.
Underlayment usually comes in rolls of 4 squares each.
Like most of your neighbors you plan to have the shingles installed by a professional roof.
It is common to use 3 bundles to a square of shingles.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
With that as background you are now ready to estimate how many shingles you will purchase for your roof project.
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.
The most common type of shingle called a three tab or strip shingle is generally packaged three bundles per square.
For a new roof you will also need the same amount of underlayment.
