Otherwise, use the table or diagram below: Steep Slope - Roof pitch of 12 or 45 degrees. So, for a roof with a total square footage of 4,200 square feet, you’ll need 42 squares of shingle material. On your next roofing estimate, I suggest that you compare the total square footage number you get by actually measuring a roof to the number you end up with after using these 2 little calculations. It is also easy to calculate the roof angle by taking the inverse tangent of b divided by a. All that matters is that you have a visual aid to keep up with the various dimensions you’ll be using to make your final calculations. Medium Steep Slope - Roof Pitch of 9. To sum it up, each individual tab on a 3-tab shingle measures approximately 12″ wide by 6″ high. This article was co-authored by David Bitan. You’ll need these items to record your roof’s measurements. There is nothing quite like climbing up on your roof and taking very specific measurements by hand. Then, calculate the pitch of the roof by placing a level against it, angling the level so the bubble is centered, and measuring the distance between the end of the level and the roof. To measure an irregularly-shaped roof, you'll need to get on top. If possible, have a helper hold it for you to stabilize it as you climb. Note that if your roof has a low slope (below 3 pitch) asphalt shingles are … unlocking this expert answer. If you’re having a brand new roof installed, you’ll need to order the same amount of underlayment material as shingles. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. If you have a hip roof, it's a little harder, but not much. David Bitan is a roofing professional, licensed contractor, and the owner and founder of Bumble Roofing based in Southern California. This was taught to me, several years ago, by one of my roofing subcontractors. Record the measurements on your sketch of the roof. In the above example, you'd need 15 squares. Dormers are separate protruding structures that house windows in the upper floors of the house. And then I will count the # of rows of shingles between the gutter and the peak of the roof and then divide the number by 2, which gives me the height measurement. First, measure the length of the eaves of each roof plane, either directly or from the ground by measuring the length of the house and adding in the width of the rake overhangs, if any. Stretch your tape measure along the walls from end to end in both directions. Save my name and email in this browser for the next time I comment. Though this measurement will not be quite as precise as if you got on the roof and measured each section exactly, a roof measurement from the ground will provide you with numbers close enough to get a fairly accurate estimate. Add all your measurements together to get your total square footage. how to measure a roof for shingles. Using the above example, that would be 132 squares. I hope you find this info to be as time-saving and helpful as I have. How to measure a roof for shingles (step-by-step) The process of accurately measuring a roof involves first making a diagram of the roof to show the basic shapes of each roof plain and how they relate to one another. 2020. Add these figures to your recorded measurements to account for the additional area. The pitch of a roof, or roof slope, helps determine how quickly excess water, snowfall, or debris will fall off of the roof. Speaking of cameras, the second most important feature to have in a digital camera that you plan to use for your Property Preservation Business, is that the camera’s flash provides enough light for you to take “above average” quality pics in complete darkness. I would then, of course, proceed to do the same thing for each of the remaining sections. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. After you’ve done this, you can click along the outer edge of the roof that you wish to calculate the area for. It would depend on the amount of rain that falls to the ground (measured in inches in the U.S) when it rains, air temperature and wind. I typically begin by counting the # of shingles from left to right, which gives me the total width of the section (in feet). If the roof is very steep you can choose to measure your roof from the ground. References. Calculate the minimum roof slope for shingles and learning the important reasons why the slope is important component. A distance of 7 inches (18 cm), for example, would mean your roof has a pitch of 7-in-12. The terms “pitch” and “slope” are sometimes used interchangeably when describing roofing projects. These roofs make it tough to count shingles so, through trial and error, I came up with a little calculation that has provided me with another simple but accurate estimation. Measure out from the face of the wall below the fascia or rafter tails to a point that aligns with the outer edge of the roof. December. As the old handyman's adage says, always measure twice to ensure that you end up with accurate dimensions. How to Take Roof Ground Measurements. Record these measurements in your notebook. Roof: Great Tips How To Measure A Roof For Shingles Ideas | how to figure shingles for a roof 10 How To Figure Shingles For A Roof xml encoding=”utf-eight”> Encouraged so that you can my weblog, on this era I am going to show you regarding key-word. 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. You can actually get an estimate of your roof's measurements from the ground if you'd rather not climb a ladder and get up on the roof yourself. wikiHow is where trusted research and expert knowledge come together. Be sure to catch our funny one! Alternatively, you can purchase a measuring wheel from your local hardware store. Finding the Total Roof Area. With over 12 years of construction industry experience, David specializes in restoring, repairing, and maintaining residential, commercial, and industrial roofs. choose the one that worked for me in order to get an approximate idea of material needs and costs. Climb onto your roof and measure each section by its height and width. You have to take into account multiple different factors like pitch, number of eaves, valleys, the materials used, the cost of labor, etc. Yes, as long as there is only one layer on the house already. Rounding before you begin multiplying and adding may throw off the accuracy of your final estimate. Tag: how to measure shingles for a roof from the ground 10 How To Figure Shingles For A Roof. The easiest way to do this is to simply eyeball them and approximate how long each one is in feet. ", "Good information that can be put to use quickly.". Support wikiHow by Make sure your ladder is resting on a flat, stable patch of ground. Looking for a quicker way of measuring a roof without climbing on it for estimates. How to Measure Your Roof for Shingles. If your roof measures 48 feet (15 m) x 24 feet (7.3 m), multiplying its length by its width would give you a square footage of 1,152 square feet (107.0 m. Always order 10% more materials than you think you need to account for waste, and round up to make sure you don't come up short. You really can ’ t know how to measure shingles for a quicker way measuring. From end to end in both directions has been read 326,082 times,. Dormers are separate protruding structures that house windows in the upper side of roof the lower part stay. 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