How Much Shingles Do I Need For My Roof

To do this you need to note that one tab will be equal to 1 foot.

How much shingles do i need for my roof.

As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. For example a very steep roof on a 1 000 square foot attic will need more shingles than a lower sloped roof on the same sized attic. 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. However shingles are packaged in a way that they are light enough for the average person to carry around.

Roof surfaces are measured in squares a square is an area of roof which measures 100 square feet. 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. 320 nails will be needed to install a square of standard 3 tab shingles assuming four nails per shingle and 80 shingles per square. The result is 240 and this means you would need 240 squares of shingles to cover that roof.

You will then have to get the measurement of the rake of 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. Your roofer will know that steeper roofs use more shingles than lower sloped roofs for the same house size and there are established slope multiplier factors to make this calculation simple see table below.