You may be asking yourself, how many square feet are in a roofing sqauare? Well, the answer is actually a little more complex than you might think. This unit of measurement can be used for a variety of purposes, from estimating the cost of a roof to comparing quotes. Here are some examples of how to calculate the square footage of a roof:
First, consider the shape of your roof. A simple roof may be a long gable roof on a bungalow, or a big rectangle on the front and back of a house. In these cases, you’ll want to multiply the length of the roof by its width. However, more complicated roof shapes may involve triangles, trapezoids, and rectangles. In either case, you’ll need to add up all surfaces to arrive at the total area.
Besides measuring the roof, you should also consider the ground area and the pitch of the roof. Once you have a rough idea of how much square footage is needed, you can divide the ground area by the number of squares. A roofing square is equal to 100 square feet of roof area, so if you have a roof with two planes, you’ll need 24 roofing sqaures. Likewise, you should factor in a ten to fifteen percent waste or trimming allowance when you calculate the total square footage of your roof.
Once you’ve measured the roof area without falling off, you’ll need to determine how many square feet you need for the project. By taking the roof measurement, you’ll be able to calculate the cost and number of shingles needed for your project. Next, divide the square footage by 100. That way, you’ll have a precise estimate of the cost per square of roof area. This step is vital because estimating the square footage of a roof requires accurate measurement.
Another important factor to consider is the cost per square. In general, a roofing square can cover 100 square feet of roof area. The total area of a roofing square varies, but most roof replacements cost between $300 and $450 per square. Tile roofs can cost much more, and the price will also depend on the time of the year. Roofing during the off-season can be cheaper than other times.
In addition to shingles, roofing felt is needed under the shingles. Roofing felt is available in rolls of 15 pounds and 30 pounds, and covers approximately four squares. To determine the amount of roofing felt needed for a 24 square-foot roof, divide the total by four or two. In other words, you’ll need 15 percent of your roofing square if it’s only four squares.
When ordering shingles, you can also order by square footage. To figure out the amount of shingles you need, divide your roof’s total square footage by 33. For instance, 2,000 square feet of roof requires 60 bundles. The number of bundles needed to cover a roofing square is also based on the number of shingles in each bundle. You should consult a roofing contractor if you’re unsure of how many bundles of shingles you’ll need to purchase.