How To Measure Your Roof For New Shingles

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.

How to measure your roof for new shingles.

Use our roof pitch calculator to find the pitch of your roof. For example a 4 12 pitch roof that is 100 square feet. Then each measurement is recorded on the diagram applicable to that roof surface. Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area.

The pitch of the roof is the rise over a 12 inch run. If the planes aren t rectangles this may be complicated. To do this you need to note that one tab will be equal to 1 foot. 1 roof square 100 square feet.

If the existing shingles are standard 3 tab shingles you can get this measurement by taking note of the number of tabs along the eaves and ridges then determine the length in feet. Place the end hook of the tape on the corner and run it all the way to the opposite corner of the house. Required measurements include the following. Measure both the width gable side and the length eave gutter side.

To measure a roof start by measuring the length and width of the building s exterior walls and multiplying them to get the area. Measure your roof accurately use a measuring tape preferably 50 or 100 feet long and get exact ground dimensions of your house. Next to calculate the square footage of each rectangular plane multiply the length by the width. Then calculate the pitch of the roof by placing a level against it angling the level so the bubble is centered and measuring the distance between the end of the level and the roof.

If you were to click on the peaks it wouldn t give you an accurate reading of your measurement. To figure out the area of a square or rectangular room measure length and width and multiply them together to get the. Roof pitch area multipliers. You will then have to get the measurement of the rake of the roof.

Calculating an area of a triangle when estimating a roof. How to measure a roof for shingles step by step the process of accurately measuring a roof involves first making a diagram of the roof to show the basic shapes of each roof plain and how they relate to one another. To calculate a rough estimate follow these steps. The length l times the height h of a triangle is twice its area a2.

100 1 054 105 4ft 2. So if you divide your answer of a product of length times height by two you will get the area of a triangle.