How Many Shingles For My Roof

For a new roof you will also need the same amount of underlayment.

How many shingles for my roof.

As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. When you are using 3 bundles for a square you will be getting 29 standard shingles in each bundle. 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. Another rule of thumb that can give you a ballpark estimate of the roof area on newly built roofs is to look at the number of sheets of plywood used for the roof deck.

Each plywood sheet is 4 x 8 feet or 32 square feet which coincidentally is almost exactly equivalent to the coverage of one bundle of traditional three tab shingles. The result is 240 and this means you would need 240 squares of shingles to cover that roof. Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry. However shingles are packaged in a way that they are light enough for the average person to carry around.

However if you are using heavier shingles you will require 4 to 5 bundles for a square. It is common to use 3 bundles to a square of shingles. 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.