Figuring Shingles For Roof

Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry.

Figuring shingles for roof. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Simply enter your roof dimensions and roof type such as gable or hip and approximate roof pitch. It is often compared to slope but is not exactly the same. 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.

How you get shingles. Once you know this number you can estimate the final price of the materials. Of course there are some measurements which will need to be taken before you are able to calculate the number of roof shingles that you need. An important part of any roofing repair or replacement project is being able to accurately calculate the quantity of roofing materials required to finish the job.

Calculate your roof pitch to determine how steeply your roof slopes. To properly calculate how. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Then multiply that number by 3 to figure out how many shingle bundles that amounts to since shingles typically come in a bundle that s large enough to cover 1 3 of a square.

Next divide your total area by 100 to calculate the number of roofing squares you ll need to buy. 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. Add the price per square of materials to get an estimated material cost. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space.

A square of shingles will be the amount needed to cover an area of 100. Before you start the calculation you need to be aware that shingles are sold by the square and by the bundle. For example you will need to figure out the exact number of shingles required to cover the entire roof area. Singles are often sold in bundles with three bundles equaling one roof square.

Although ceramic tile roofs are expensive they can have a life span of over 100 years. Our calculator will help you estimate the amount of roofing shingles needed for your project plus the cost of materials and accessories. When figuring the amount of shingles needed to roof a house you first convert the total square footage of the roof to squares a square represents 100 square feet of area covered by shingles.