How To Determine Shingles Needed For Roof

This roof shingle calculator requires four basic inputs.

How to determine shingles needed for 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. Hold the end you measured from against the bottom of a rafter so it s sticking straight out horizontally and is level. Roof length measured in feet roof width measured in feet roof pitch roof type either gable or hip. Place the end hook of the tape on the corner and run it all the way to the opposite corner of the house.

Remember that the length and width need to be found for the roof not the house so take into account that the roof overhangs the building. Find the square footage of the roof. A square of shingles is the quantity needed to cover 100 sq. Mark a length of 1 foot 0 30 m on a long level starting from one end.

Start by measuring the length and width of the roof in feet as you re standing on the ground. 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. Measure both the width gable side and the length eave gutter side. Measure your roof accurately use a measuring tape preferably 50 or 100 feet long and get exact ground dimensions of your house.

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. The number of squares determines the amount of shingles needed. Singles are often sold in bundles with three bundles equaling one roof square. Measure the pitch of your roof in the attic.

You will then have to get the measurement of the rake of the roof. The first thing you need to do when figuring out how to put shingles on a roof is to determine which type of roofing shingles you need. Determine the total number of squares. From the 1 ft 0 30 m spot you marked on the level measure upward to the rafter.

Measure the length and width of each portion of the roof multiply length by. Then determine the area of the roof as if it were flat. 3 tab shingles are the most common type of shingle. To do this you need to note that one tab will be equal to 1 foot.

Divide the total footage by 100 to determine the number of squares in the. Determine the bundles of shingles.