How Many Shingles Needed For Roof

Singles are often sold in bundles with three bundles equaling one roof square.

How many shingles needed for roof.

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. It takes 3 bundles to cover a square if you use 3 tab shingles the most common type. But be careful not all shingle brands are packaged three bundles to a square. There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.

However if you are using heavier shingles you will require 4 to 5 bundles for a square. When you are using 3 bundles for a square you will be getting 29 standard shingles in each bundle. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. Enter square footage calculate or enter the square footage of the attic or area to be vented.

A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. However shingles are packaged in a way that they are light enough for the average person to carry around. It is common to use 3 bundles to a square of shingles. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator.

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. Divide the total footage by 100 to determine the number of squares in the roof. 3 determine the bundles of shingles needed to cover the roof. The number of squares determines the amount of shingles needed.

Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry. How many bundles of shingles will you need the average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square. Asphalt shingles are typically packaged with this in mind but if a package of shingles covered an entire 100 square foot square it would be too heavy to handle. Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years.

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.