How Do You Figure Shingles For A Roof

The number of squares determines the amount of shingles needed.

How do you figure shingles for a roof.

Roof length measured in feet roof width measured in feet roof pitch. Divide the total footage by 100 to determine the number of squares in the roof. Simply enter your roof dimensions and roof type such as gable or hip and approximate roof pitch. Singles are often sold in bundles with three bundles equaling one roof square.

From the 1 ft 0 30 m spot you marked on the level measure upward to the rafter. To do this you need to note that one tab will be equal to 1 foot. Roofing felt is sold by the roll. 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.

Outside of the u s a degree angle is typically used. Measure your roof accurately. How to use roof calculator. Measure the pitch of your roof in the attic.

If the existing shingles are standard 3 tab shingles you can get this measurement by taking note of the number of tabs along the eaves and ridges then determine the length in feet. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Approximate price in dollars the estimate of a final price will depend to a large degree. Use a measuring tape preferably 50 or 100 feet long and get exact ground dimensions of your house.

Our calculator will help you estimate the amount of roofing shingles needed for your project plus the cost of materials and accessories. How many rolls of felt will you need. This roof shingle calculator requires four basic inputs. You will then have to get the measurement of the rake of the roof.

Hold the end you measured from against the bottom of a rafter so it s sticking straight out horizontally and is level. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. Roof area measured in sq ft number of squares. 3 determine the bundles of shingles needed to cover the roof.

Roof type either gable or hip using these four inputs you will get several basic outputs. Mark a length of 1 foot 0 30 m on a long level starting from one end. When figuring the amount of shingles needed to roof a house you first convert the total square footage of the roof to squares a square represents 100 square feet of area covered by shingles. Rolls of felt are 36 wide x 144 long for 15 and 72 long for 30.

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. Enter your zip code. With that as background you are now ready to estimate how many shingles you will purchase for your roof project. The average roll of 15 pound roofing felt covers about 400 ft 2 or 4 squares while the average roll of 30 pound roofing felt covers about 200 ft 2 or 2 squares.