After measuring the area of the footprint you can estimate the actual roof area based on the angle of the roof. Measure your roof accurately.
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You need to know a few things before you start calculating materials like the pitch of the roof as well as the dimensions.
How to figure shingles for a gable roof. Enter appropriate roof pitch slope. Placing the answer to this equation over 12 is the roofs pitch. The top ridge will be shorter for a hip roof but the 4 hips will add to the amount of ridge capping needed and because of the.
2 days ago How To Measure A Roof Using Google Earth Step One. L is the length of the roof. Then determine the area of the roof as if it were flat.
Hold one edge of the level against the surface of your roof along the edge above the gable and adjust it until the bubble indicates that it is perfectly horizontal. Divide total area by 100 this is the number of squares required Multiply the squares by the number of bundles per square or see the table Below or manufactures instructions for quantity. Our calculator results show your roof area material details and their cost per square foot plus the total estimated cost of a new roof including materials and installation expense.
While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2236 from the measured total area at a pitch of 2412. The difference is in the amount of ridge capping you need and the amount you will waste. Calculating roof pitch involves dividing the rise by the run and multiplying that number by 12.
182 162 square feet. Dec 02 2020 S6 18. A gable roofs square footage is equal to that of a hip roof with the same dimensions.
As such while it can be cumbersome measuring the area and pitch of each part of the roof and. S7 18. 182 162 square feet.
Measure the Building Length include the overhang Multiply Length by Height for the area. One pack of standard shingles covers 33 sq. Calculate the amount of asphalt or fiberglass shingles needed to cover a hip roof.
Remember that the length and width need to be found for the roof not the house so take into account that the roof overhangs the building. Simply enter your roof dimensions and roof type such as gable or hip and approximate roof pitch. Roof type either gable or hip Using these four inputs you will get several basic outputs.
How to Calculate Roof Pitch. Roof length measured in feet Roof width measured in feet Roof pitch. H is the rise height of the roof 3D image For decimal dimensions use the dot notation.
Google Earth will switch to a top-down view. To calculate roof pitch one must employ a simple equation from high school algebra used to calculate the slope. Roof area measured in sq ft Number of squares.
Or you could add the two 18 widths getting 36 and then multiply it by 18 length divide the answer by 2 and get the same answer of 324 for both S6 and S7. Use a measuring tape preferably 50 or 100 feet long and get exact ground dimensions of your house. Roof Width Gable Side.
Oct 21 2014 The only roof that will generate no waste from cutting is a simple gable roof whose length is divisible by the 3-ft. This roof shingle calculator requires four basic inputs. The difference is in the fewer amount of ridge capping you need and the amount you will waste will be less than that for a hip roof.
With just a few clicks you can search for any address get a birds eye view of your roof and get the roofing measurements that you need. It is important to note that each course will have an exposure of 5 inches so you will need to times the number of shingle courses by the number 5 and divide the number by 12 to calculate the measurement of the rakes. A hip roofs square footage is equal to that of a gable roof with the same dimensions.
Start by measuring the roofs length and width in feet as youre standing on the ground. Dec 02 2020 How To Use Roof Shingle Calculator. Length of a shingle.
L is the width of the roof.
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