How To Measure Your Roof Size

How to calculate your roof square footage first measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface.

How to measure your roof size.

After measuring the area of the footprint you can estimate the actual roof area based on the angle of the roof. Stretch your tape measure along the walls from end to end. Measuring your roof from the ground 1. Step 2 measuring your home.

Find the length and width of the building s exterior walls. The roofing and construction industry has determined that one roof square 100 square feet. Thus in a simple style house you ll only have to click on the corners. How to measure a roof.

Estimate the roof pitch by. On a simple house for instance you would only click on the corners of the roof and not on any points along the peak as that would cause an error. Once you draw up your roof diagram take the 100 tape measure and measure your house. Outline the roof at the points that are on the same level or elevation to ensure that you re getting an accurate calculation of your roofing measurements.

Step 1 drawing a roof diagram. So if you divide your answer of a product of length times height by two you will get the area of a triangle. The length l times the height h of a triangle is twice its area a2. Draw your house and roof sections on the notepad marking all pitch changes ridge and.

Outside of the u s a degree angle is typically used. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. Thus if you measure the roof at 500 square feet that translates into 5 roofing squares. The pitch is the steepness of the roof.

To find the pitch of your roof you ll first. 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. If you were to click on the peaks it wouldn t give you an accurate reading of your measurement. 1 roof square 100 square feet.

L 30 feet h 12 feet 30 12 2 180 square feet. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. A medium pitch rises 6 to 9 inches every 12 inches of base horizontal length. When you go to your local home improvement store that is the number that you need to focus on not the actual dimensions of your roof.

You will need to express this size in terms of square feet. In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. Use a pitch. A high pitch roof rises more than 9 inches for every 12 inches of base horizontal length.