How To Figure Squares Of A Roof

So if you divide your answer of a product of length times height by two you will get the area of a triangle.

How to figure squares of a roof.

This nominal square footage amount is then multiplied by a factor associated with the roof s pitch. Divide any irregularly shaped areas of the roof into more manageable triangles and rectangles then calculate square footage for those individual elements and add them to get the total square footage. Convert the area to roofing squares. For instance if the roof is 1550 square feet then it is 16 squares.

Outside of the u s a degree angle is typically used. To find the squares divide the overall roof area by 100 and then round up. Roof pitches in degrees. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

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. A square simply refers to a 10 x 10 square of roofing. As an example if your overhang is 12 inches you ll add 2 feet to the overall length and 2 feet to the overall width of the house. 1 roof square 100 square feet.

L h 2 area calculating an area of a triangle when estimating a roof. The length l times the height h of a triangle is twice its area a2. This is simply 100 square feet of roof. If the house has an irregular shape measure each part separately figure the separate areas and add them together.