This free roof calculator estimates the area of a roof and the amount of materials needed to replace or build that roof. First, you must determine the size of your house by multiplying the length and width of your house. To do this, calculate the dimensions of your roof by counting the steps you take when you walk the length and width of your house. If you use the aggregated area in these simple ways, you can get a more accurate roof area to use with the roofing materials calculator.
If you need a new roof and want to know how much it's going to cost, you can calculate its area and then use this number to estimate the cost of shingles per square foot. Fortunately, the formulas at least give you a rough measurement that you can use when researching how much a new roof costs. In cases where a roof has a complex shape, as in the image on the right, measuring the dimensions and areas of each part of the roof to calculate the total area will result in a more accurate measurement of the area. The area calculator can be used to calculate the area in a variety of simple ways that, together, can constitute the roof area. Given the slope and a measurement of the horizontal area, multiply the horizontal area by a correction factor corresponding to the slope, shown in the table below, to determine the actual roof area to be used in the roofing materials calculator.
After learning how to calculate the square footage of your roof, you may think it's too much work and a hassle. The purpose of calculating the precise measurements of a roof is to ensure that you order the right amount of roofing materials, whether for roof tiles, metals or any other type of roof. Hover saves roofing professionals hours by taking measurements in the workplace and calculating budgets in the office, as well as saving homeowners time to start planning their project.
