How To Measure How Many Squares On A Roof

Because each 100 square feet of roof is one.

How to measure how many squares on a roof.

The length l times the height h of a triangle is twice its area a2. L h 2 area calculating an area of a triangle when estimating a roof. Each square is 100 square feet. Roofers measure surfaces in squares of 100 square feet 9 29 square meters.

If you are replacing your entire roof you will need to purchase shingles in 50 squares to sufficiently cover your 5 000 square foot roof. In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area. If your roof is 5 000 square feet you will have 50 squares. Mark a length of 1 foot 0 30 m on a long level starting from one end.

Step 2 measure the length of the bottom of any triangular shaped portion of the roof. A square simply refers to a 10 x 10 square of roofing. If the house has an irregular shape measure each part separately figure the separate areas and add them together. For instance if the roof is 1550 square feet then it is 16 squares.

This is simply 100 square feet of roof. Find the number of squares. Pitch measurement method 1 1. 1 roof square 100 square feet.

Mark the center of the bottom length while measuring. Measure the length and width of each rectangular or square area of the roof and multiply the length times the width to gain the total square footage for each square or rectangular area. On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof. Divide the total footage by 100 to find the number of squares in the roof.

1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square. Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material. The calculator cannot account for complex shapes based on a measurement of square footage alone. If this distance measures 4 inches you have a 4 in 12 pitch.

Convert the area to roofing squares. To find the squares divide the overall roof area by 100 and then round up. Hold the end you measured from against the bottom of a rafter so it s sticking straight out horizontally and is level. So if you divide your answer of a product of length times height by two you will get the area of a triangle.

Measure the pitch of your roof in the attic.