Roofing Shingles How Much Do I Need

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.

Roofing shingles how much do i need.

A typical bundle of shingles weighs about 75 pounds while some premium products can weigh over 100 pounds per bundle so consider delivery of materials. Roof surfaces are measured in squares a square is an area of roof which measures 100 square feet. A square of shingles will be the amount needed to cover an area of 100 square feet. How many rolls of felt will you need.

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. 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. The average roll of 15 pound roofing felt covers about 400 ft 2 or 4 squares while the average roll of 30 pound. Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry.

As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. You ll need longer nails for this part as you re driving through more layers of shingles. 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.

Although ceramic tile roofs are expensive they can have a life span of over 100 years. Marquis weathermax autumn brown 3 tab roofing shingles 33 3 sq. A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet by 100.

The result is 240 and this means you would need 240 squares of shingles to cover that roof. 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. Roofing felt is sold by the roll. Before you start the calculation you need to be aware that shingles are sold by the square and by the bundle.