There are several ways to measure the square footage of a roof. Using a tape measure and a ladder is one option, but using Google Earth and a smartphone can also be an option. Taking these measurements accurately is critical for your project’s success. Then, you can use the information to calculate the cost of repairs and upgrades. Read on for more information. After learning how to measure a roof, you can use it to plan the rest of the project.
Using a ladder
Before you go out and buy a ladder, make sure it’s right for the job. Different kinds of ladders have different sizes and features. The purpose is to be as safe as possible, so it’s important to choose the right one for the job. Also, be aware that you may need a jack to support the weight of the ladder if it’s a tall one. The following are tips to help you select the right one.
First, wear safety gear. The safety equipment you should wear includes a harness, a shock-absorption lanyard, and a braided rope lifeline. Then, you should also bring a notepad, pencil, and a tape measure. In case you experience a slip and fall, a second person is able to call for help and prevent an accident. The fall-arrest equipment should fit properly as well.
Next, protect your ladder’s surface by buying a ladder with a protective pad. Ladder pads, also called ladder mitts, are caps that protect the surface of the ladder. The rubber ones give additional grip while soft fabric ones prevent the ladder from scratching surfaces. Always remember that you’ll be standing on three points of contact, so that you don’t fall. Regardless of the type of ladder, you must wear safety gear to stay safe.
When purchasing a ladder, remember that the base of the ladder should be placed about four feet from the edge of the roof. You can calculate this by dividing the total length by four. You should also buy a wooden block under the base for extra support. Lastly, remember to choose a ladder with appropriate duty ratings. Also, make sure to get safety training and consider a fall-protection system.
Lastly, be sure to wear the right clothing and rubber-soled shoes for safety. Remember not to lean the ladder against a roof gutter because it will not hold the weight. If you have to lean the ladder against a roof plane or a home’s siding, you can purchase a ladder mount guard. It not only protects the ladder from damage, but provides a stable docking station for the ladder.
Using a tape measure
When you are measuring the area of your roof, you will need to know its width and length. The total area is equal to the sum of these two measurements. For example, if the entire roof is 1,500 square feet, the measurement should be taken from the outer edge of the gable to the center of the single-ply roof. A two-plane roof will have a total area of 3,000 square feet.
To determine the roof pitch, you can use a level to determine the angle of the roof. Start by placing the level against the edge of the roof. Hold it steady while drawing the measuring tape across the roof. The bubble inside the level must be straight to give an accurate measurement. You can then compare the two measurements using a measuring tape. The level measurement gives you the horizontal component of the pitch of the roof, while the measuring tape provides the vertical component. To determine the roof pitch, place the level at the 0 mark of the roof and mark the 12 inch mark with the tape measure.
Using Google Earth
One of the easiest ways to measure a roof is to view it from the ground. This method is probably the easiest, but it requires more math and geometry. Fortunately, Google Earth is available for desktop computers, laptops, and mobile devices. To get a more accurate estimate of the roof’s square footage, you can enter the address of the building. Then, zoom into the location and click on the starting point or outer edge of the roof.
Although using Google Earth to measure a roof can save you time and money, it’s not a replacement for a thorough inspection. For flat roofs, using Google Earth can give a contractor an idea of the overall size of the roof, but it can’t substitute for a thorough inspection. In addition to finding rough dimensions of the roof, this tool also makes it easier to spot any roof details that may be missing or unnoticed by a contractor’s eyes. For example, you can see skylights, vents, HVAC, and other details that may be missed during a routine inspection. Nevertheless, if you do want to do a full inspection, be prepared to spend additional time.
Another way to measure a roof is to use Google Earth’s ruler. The ruler allows you to draw an outline of a large area, such as a roof. To measure the perimeter of a large area, start by selecting the Ruler icon. Click on multiple points on the map and close the outline. Google will then calculate the area contained by the polygon. Using this method will save you time and frustration.
Using Google Earth to measure a roof involves navigating a map. First, you must download the free Google Earth Pro program. Once installed, you’ll be given an image of the Earth. This will serve as your dashboard in Google Earth. From there, you can use the Measurements tab to find the exact dimensions of the roof. In addition, you’ll also be able to see how many floors are located in the structure.
Using a smartphone
Whether you’re a first-timer or a professional contractor, using a smartphone to measure a roof can make your job much easier. This app allows you to record measurements and even calibrate the device, which increases the accuracy of measurements. Unlike traditional measuring tools, smartphones are equipped with cameras and sensors that enable them to measure even the smallest corner. This feature is particularly useful when measuring the height of a roof.
In addition to providing accurate measurements, the app also helps you to save time. One app, iRoofing, allows you to measure the exact area of a roof in a matter of seconds. The app allows you to see the outline of the roof in satellite view and even trace linear features of the roof. Once you have traced your roof, the app calculates precise measurements and provides an easy-to-read report with the total square footage, waste factors, and roof diagram.
Another app that measures a roof, called HOVER, requires you to take four to eight pictures of the roof. The app then converts the measurements into a 3-D model that you can see from the ground. It also provides you with siding information, making it easy to add shingle products to the roof virtually. With this app, you can save time and money by doing your job on the go.