How To Estimate Number Of Shingles For Roof

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.

How to estimate number of shingles for roof.

Asphalt shingles range in price from about 25 per bundle for a standard 3 tab style to around 50 75 or more for an upgraded architectural style. However shingles are packaged in a way that they are light enough for the average person to carry around. Then add 10 to the number to account for waste. To estimate roofing materials start by finding the total square footage of the roof and divide the number by 100 to determine the number of squares in the roof.

Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry. A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. 8 inches and you have an 8 in 12 pitch. If this distance measures 4 inches you have a 4 in 12 pitch.

Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square. 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. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

This free roofing calculator estimates the area of a roof and the amount of materials required to replace or build said roof. To do this you need to note that one tab will be equal to 1 foot. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. Also have a couple of bundles spare on hand to cover wind damage etc.

3 bundles per square. Compute the area of the whole roof and determine the number of bundles. On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof. Explore a number of housing related calculators as well as hundreds of other calculators covering topics such as finance math health fitness and more.

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. 33 square feet per bundle 100 square feet per square 4 nails per shingle.