The first step in estimating the cost of a roofing project is to determine how much the material will cost. It’s important to know the surface area of your roof, which depends on its pitch and total square footage. The higher the area, the more expensive the shingles. You can estimate the number of shingles you’ll need to cover your roof using a Roof Shingles Calculator. You should then factor in 10 to 15 percent for extra materials to be bought during the installation. commercial roofing
To determine how many shingles will be needed, start by measuring each plane of your roof. In simple roof shapes, multiply length times width to get the square footage of each plane. On complex roofs, measure each plane at ground level. You can also measure the rake-edge overhangs and calculate the amount of shingles per square. Using these estimates, you can begin to design your roof. Once you have a good idea of the amount of material needed, you can begin measuring the roof’s length and width.
If your roof has a steep pitch, you will have to account for this. In addition, it is essential to know the area of each slope separately. You can do this with an overhead sketch by orienting it to your current position. Once you have the area of each plane, write down the measurement. Round it up to the nearest 6 inches to get an accurate measurement. Using this method, you can accurately estimate the cost of a roof that you’re designing.
Another way to estimate the cost of roofing materials is to calculate the square footage of your roof. Divide that number by 100 to get the total square feet of the roof. Once you’ve determined how much material you need, you can use this calculation to compare contractor estimates. You can keep this estimate handy for future conversations with your roofer or replacement. If you find the estimate too high, simply change the square footage until it matches the actual cost.
Another factor to consider when estimating the cost of a roof replacement is the amount of nails you need. The average roof replacement requires about two and a half pounds of nails per square foot. You should also factor in the cost of flashing, a sheet metal barrier that protects your roof from water seepage. Usually, your roofer will handle the disposal of the shingles, but you can also negotiate a discount with a dumpster rental company.
As a rule of thumb, the average price of a square of asphalt shingles is $170 to $400 per square foot. However, this price can vary significantly based on where you live, and the cost of labor. The typical cost of a roof replacement depends on the square footage of the roof, the type of roofing material, and the quality and size of the house. You should make sure to check out the manufacturer’s warranty policies, as well as other factors before making a final decision.