How Many Bundles Do I Need For My Roof

There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.

How many bundles do i need for my roof. The most common type of shingle called a three tab or strip shingle is generally packaged three bundles per square. So in the gable roof example above you would 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. For instance a 7 12 roof pitch means that the roof rises 7 inches for every.

For a new roof you will also need the same amount of underlayment. 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. A square represents 100 square feet of area covered by shingles. Underlayment usually comes in rolls of 4 squares each.

Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square. So in the gable roof example above you need 240 squares of underlayment. The most common type of shingle called a three tab or strip shingle is generally packaged three bundles per square. It is common to use 3 bundles to a square of shingles.

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. 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. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a 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. It is often compared to slope but is not exactly the same. However if you are using heavier shingles you will require 4 to 5 bundles for a square. Since transportation is a major cost factor expect prices to vary by location.

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. When you are using 3 bundles for a square you will be getting 29 standard shingles in each bundle. For a new roof you will also need the same amount of underlayment.

Then add 10 to the number to account for waste. Singles are often sold in bundles with three bundles equaling one roof square.