Metal Roof Calculator

Metal Roof Calculator

Now that you have the ground dimensions of your roof, it is time to estimate your roof pitch, also known as roof slope. It tells you how steep your roof is. The question many people will ask, is “How do I figure out the roof pitch from the ground?”. You can estimate a roof’s slope in several different ways; go to your local hardware store, and buy a pitch meter for estimating roof slope from the ground. Another way to do it is very simple; take a look at your roof, and ask yourself “Is it possible to walk on this roof with ease?”. If the answer is yes, then your roof pitch is low or walkable. Thus, you would select “low” in the roof pitch selection field. If it looks like you could kind of try to walk up the roof, but you would be taking chances, then your roof slope is medium. Finally, if walking on the roof seems dangerous or impossible, then your roof is steep and non-walkable.
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Metal Roof Calculator

Now that we have figured the roof pitch, it is time to determine the type of the roof in question. – To do this, simply look at your roof and count the number of sides that it has: If your roof has only two sides connected by a straight ridge line, then it is a simple gable roof. It’s one of the most common and easiest to work on roof type in the US. Now, if our roof has four sides, then it is a hip roof. The hip roof is considered to be more complex, and will require more materials and time than a gable roof with the same ground dimensions. There is also an average of ten percent materials waste with most hip roof installations. A quick rule of thumb is that the more complex your roof is, the more material will be wasted during new roof installation. If your roof has a lot of sophisticated dormers, hips, slope changes, and valleys, then installation process becomes a very involved. It will take longer time to complete, which will increase our bottom line.
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Metal Roof Calculator

3. Take a look at your roof, and ask yourself, “How complicated is my roof”? If it is a simple gable type roof, then your roof can be considered a simple one. But, if there are a few sky-lights, some dormers, or even a roof tower or two, then your roof is a complex one. Make an appropriate selection in the roof difficulty menu.
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Metal Roof Calculator

Hey Susan, Thanks! We try to keep the calculator up to date with what contractors charge and with fluctuations in material costs. We recently created a roof price index (RPI) which tracks US average roof costs, based on what our visitors calculate for their roof replacement. As far as ventilation, each roof is unique, but yea – mansards are hard to ventilate properly.
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Metal Roof Calculator

The easiest way to obtain accurate roof measurements, is to walk around the house and take ground measurements right underneath the roof. Keep in mind that your roof will usually overhang / extend away by a foot from the walls of the house. Thus, you will want to use the actual edges of the eaves/overhangs of the roof, as a starting and ending reference point for taking your measurements. You can sketch a simple diagram of your roof to minimize errors and make the measuring process easy. Take a look at the example of the roof sketch below to see exactly what you’ll need, and how easy it can be:
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Metal Roof Calculator

Very Important Note: Before you order your metal roofing panels, you will need to get on the roof and physically measure its run, to the exact number of feet and inches. REMEMBER that the calculator provides only an APPROXIMATE length for your roof panels. If you do not measure the exact length of your roof run, your panels may come out too short or too long. If your panels are too short, they may be unusable. We are not responsible for the accuracy of any measurements on your part.
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Metal Roof Calculator

Please note: Any roof figures obtained with our calculator reflect hiring a skilled crew with a solid reputation, verifiable work references, and an ample experience in the field. The calculator assumes that the company you hire will have all the necessary tools and equipment, general liability insurance, and workers’ compensation for all of the installers working on your project. Prices rendered apply to the North Eastern region of the U.S, and may require substantial adjustment for other parts of the country.
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Metal Roof Calculator

Metal Roofing Prices – calculate the cost to install a metal roof – choose between steel, aluminum, copper or zinc metal roof, metal shingles, panels or tiles. Prices are calculated based on what a professional metal roofing contractor would charge for installation.
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Measuring your roof – you will need to use a tape measure to get the width and the length of your roof. You will also need to calculate your roof pitch, and properly identify your roof type. Use the following guides, which will help you to accurately measure your roof:
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Choose your roof type – gable or hip. While a gable roof is very simple, on a hip roof you will need to cut off the corners at the top of each panel, and also some panels will need to be cut in half to make shorter panels for the very ends of the hip roof. Also, on a hip roof you will need to pay extra attention not to make wrong cuts and not to waste panels. Otherwise, you may need to scrap the panels and get new ones.
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March, 2015 Update: We are pleased to announce that we’ve just updated the calculator’s pricing data with the latest national figures. We’ve also added three more types of roofing systems to the calculator giving you a wide plethora of options! For instance, you can now estimate the difference in cost of architectural (also known as dimensional, laminated or composition) shingles VS. the most basic 3-tab asphalt shingles, installed.

Many of our site visitors have requested a calculator that can also estimate roofing materials including bundles of shingles necessary for a specific project, along with the cost of materials required for the job. We did not have such a tool readily available, but after a little bit of digging and research we have developed it! Our new materials and area calculator can be accessed here. – Let us know if you find it useful.
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5. How many existing layers of shingle are there on your roof currently? If you have two or more layers on your roof, then a complete Tear Off, and roof deck inspection of your existing roof is required.
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The gauge of the metal is a measurement of how thick it is. The smaller the number, the thicker the metal. 24 gauge metal (sometimes written “24ga”) is thicker than 29 gauge, which is the minimum recommended gauge for residential construction. Some roofs, such as Modular Press Formed Granular Coated roof, are only available in certain gauges (26 gauge in this case). 24 gauge is the recommended gauge for high wind areas. The gauge of the roof doesn’t affect the overall price much. The difference is usually a matter of around $100 per square. (A “square” in roofing is a 100 square foot area.)
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When comparing asphalt with metal, the durability of a metal roof is its crowning glory. A roof that will probably outlast its owner is a good investment. Asphalt is more economical, and that’s why it has the majority of the residential market at the moment. When metal becomes more economically viable, that may change. However, for now, asphalt is king.
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The materials choices provided above represent typical/non-premium materials that are often installed on residential roofs and commercial buildings in the US. If you are interested in a premium roofing system, then you are probably considering Slate, Clay Tiles, Cedar Shakes, and Metal. For your convenience, we have included all four of these premium roof types in our calculator.
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At the moment, metal roofs account for 10% of the residential market. However, even asphalt roof installers agree that metal roofs are the roof of the future.
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According to the 2014 US Census, the average square footage of the average American roof is 1700 square feet. Calculating the cost of a metal roof isn’t as simple as just knowing your square footage, however. The price of metal is subject to fluctuation. Sometimes it can be pretty volatile. (In 2007, steel had a very wild period in which quotes for steel prices were good only for one hour!)
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Mark, we do not offer a roof calculator that you can put on your site. We can create a custom version for you, but there would be cost associated with it. Let me know if interested.
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Mark, we do not offer a roof calculator that you can put on your site. We can create a custom version for you, but there would be cost associated with it. Let me know if interested. Leo