If you're planning work on a roof and don't have the building plans, you can start by measuring the roof. It’s also important if you want to have new shingles for the roof. Measuring the roof will enable you to determine how many shingles you will need. Well, the question is how to measure a roof? Don't worry, there are many methods to measure a roof. If the roof is very steep or if you are not one for heights or climbing ladders, you can choose to measure your roof from the ground. 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. You still may need a ladder, but you will not have to get all the way on top the roof. Well, one thing to note is that there are various kind of roofs and they has their own difficulty to be measured from the ground. Measuring hip roofs, dormer roofs or roofs on hillside homes from the ground requires experience and special equipment. But, you can measure a gable or flat roof from the ground with the help of an assistant.
Here are some steps on how to measure a roof. First, you need to draw a diagram of your roof on a piece of paper. Label each section of the roof. Then, measure the four sides of the house from the ground using a measuring tape. Mark this on the diagram. After this you need to get the total square feet. Add up the square feet you determined for each section. The sum of these numbers if your total square feet of the house, not the roof. Determine the pitch of the roof. The pitch is how steep the roof is. Pitch is calculated by the roof's rise over its run. Measure from the edge of the roof over 12 inches (12 is the run) and see how many inches up the roof line is (this is the rise). Get a slope multiplier from the chart. The last step is get the final roof calculation. Take the ground level square figure you came up with and multiply it by the appropriate slope multiplier. This will give you your roof square.
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