Roofing Shingles How Much Do I Need

To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet by 100.

Roofing shingles how much do i need.

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. The average roll of 15 pound roofing felt covers about 400 ft 2 or 4 squares while the average roll of 30 pound. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.

For example you may need to pay double the cost in asphalt shingles if your roof has a 12 12 pitch a rise of 12 inches 30 cm per 1 foot 0 30 m as opposed to a 4 12 pitch. Before you start the calculation you need to be aware that shingles are sold by the square and by the bundle. Although ceramic tile roofs are expensive they can have a life span of over 100 years. Roof surfaces are measured in squares a square is an area of roof which measures 100 square feet.

The result is 240 and this means you would need 240 squares of shingles to cover that roof. Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years. The most common roofing materials used in the united states include shingles membrane roofing and ceramic tile all of which have different life spans. X research source calculate your roof pitch to determine how steeply your roof slopes.

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. A square of shingles will be the amount needed to cover an area of 100 square feet. 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. How many rolls of felt will you need.

You can either use special shingles called ridge shingles or cut a number of regular shingles into 3 tabbed equal pieces and bend each so they fit snugly on the roof peak and nail them into place. 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. Marquis weathermax autumn brown 3 tab roofing shingles 33 3 sq. You ll need longer nails for this part as you re driving through more layers of shingles.