Figuring Roof Area On 5 12 Roof

The first step in a free roofing estimate is measuring the roof dimensions.

Figuring roof area on 5 12 roof.

Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure. Use our roof pitch calculator to find the pitch of your roof.

Once the area is known divide by the area of a 4 8 sheet to find how much sheathing is needed. Calculate or enter the square footage of the attic or area to be vented. Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area. For example a 4 12 pitch roof that is 100 square feet.

Once you know this number you can estimate the final price of the materials. To find the amount of plywood needed to cover a roof start by finding the area of the roof. Dividing by 12 gives the ratio of inches in rise per distance. 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 2 236 from the measured total area at a pitch of 24 12.

Thus a moderate 6 in 12 roof pitch means the roof rises 6 inches for every 12 horizontal inches it runs. Divide your roof pitch by 12. If your number is 1 3 squared would yield 1 9. The rise is the distance from the top of a stud wall to the peak of the roof.

For example you will need to figure out the exact number of shingles required to cover the entire roof area. Once you have your roof s pitch divide the number by 12. A 12 in 12 pitch is a steep 45 degree angle roof. Calculating the area true if you want to get the exact area measurement for your roof you can follow these steps.

The pitch of the roof is the rise over a 12 inch run. Roof pitch area multipliers. For example if your roof s pitch is 4 in 12 you would divide 4 by 12. Multiply the length of the roof in feet by the width of the roof in feet to find the area of the roof in square feet.

Find the area of a roof. You will need to express this size in terms of square feet. A roof s pitch is determined by how much it rises for every foot it runs. To accurately calculate the area of your roof you must first determine its slope or pitch.

This would yield 1 3 next square your result. Roof pitch is given as the number of inches in height change over the distance of one foot.