How To Determine Shingles Needed For Roof

A square of shingles is the quantity needed to cover 100 sq.

How to determine shingles needed for roof.

This roof shingle calculator requires four basic inputs. Start by measuring the length and width of the roof in feet as you re standing on the ground. From the 1 ft 0 30 m spot you marked on the level measure upward to the rafter. Architectural shingles are another option and are installed the same way as 3 tab shingles but give your roof.

Singles are often sold in bundles with three bundles equaling one roof square. Hold the end you measured from against the bottom of a rafter so it s sticking straight out horizontally and is level. 3 tab shingles are the most common type of shingle. Shingles are packaged in paper or plastic wrapped bundles designed to be light enough for a person to carry so heavier shingles require more bundles per square.

Measure the length and width of each portion of the roof multiply length by. Given pitch and a horizontal area measurement multiply the horizontal area by a correction factor corresponding to pitch provided in the table below to determine the actual area of the roof to be used in the roofing material calculator. Divide the total footage by 100 to determine the number of squares in the. To do this you need to note that one tab will be equal to 1 foot.

Place the end hook of the tape on the corner and run it all the way to the opposite corner of the house. Measure your roof accurately use a measuring tape preferably 50 or 100 feet long and get exact ground dimensions of your house. Then determine the area of the roof as if it were flat. Mark a length of 1 foot 0 30 m on a long level starting from one end.

They are typically 36 inches long in total. Find the square footage of the roof. 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. Measure the pitch of your roof in the attic.

The number of squares determines the amount of shingles needed. Measure both the width gable side and the length eave gutter side. You will then have to get the measurement of the rake of the roof. 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.

Determine the total number of squares. Determine the bundles of shingles.