How To Figure Out How Many Roofing Shingles I Need

So in the gable roof example above you need 240 squares of underlayment.

How to figure out how many roofing shingles i need.

If you have valleys and or dormers you will need to measure and calculate those by adding their sq. A square represents 100 square feet of area covered by shingles. This means you would need 240 squares of shingles to cover that roof. At this point you will also need to estimate or measure the overhang if you have one.

For a new roof you will also need the same amount of underlayment. Note that in the last 3 4 years costs of roof shingles and many accessories have gone down by an average of 18 20 currently the us national average for benchmark architectural shingles is around 74 51 square or 25 per bundle. 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. Once you know this number you can estimate the final price of the materials.

Of the rest of the roof. The result is 240 and this means you would need 240 squares of shingles to cover that roof. For example you will need to figure out the exact number of shingles required to cover the entire roof area. The most common type of shingle called a three tab or strip shingle is generally packaged three bundles per square.

Your roof line is not going to be the same as the square footage in your home. 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. 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. To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet by 100.

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. Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry. Singles are often sold in bundles with three bundles equaling one roof square. An important part of any roofing repair or replacement project is being able to accurately calculate the quantity of roofing materials required to finish the job.

This overhand measurement will need to be added to the measurement of the building.