Calculate the square.
How do u measure a roof for shingles.
The length l times the height h of a triangle is twice its area a2.
From the 1 ft 0 30 m spot you marked on the level measure upward to the rafter.
To do this you need to note that one tab will be equal to 1 foot.
Climb onto your roof and measure each section by its height and width.
1 roof square 100 square feet.
Extend your tape measure along the outer edges of the roof to find its length and width in feet.
So if your roof is 26 000 square feet you ll need 260 squares to coat it.
This doesn t have to be an exact sketch but.
For sloped sectional roofs write down the dimensions of each individual plane.
You will then have to get the measurement of the rake of the roof.
Hold the end you measured from against the bottom of a rafter so it s sticking straight out horizontally and is level.
Measure the pitch of your roof in the attic.
Divide the roof into manageable sections.
L h 2 area calculating an area of a triangle when estimating a roof.
Then each measurement is recorded on the diagram applicable to that roof surface.
Mark a length of 1 foot 0 30 m on a long level starting from one end.
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.
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.
Roof surfaces are measured in squares with each square being 100 square feet.
For square or rectangular roofs you ll only need to record the length and width.
Measure and record your findings.
I typically begin by counting the of shingles from left to right which gives me the total width of the section in feet.
And then i will count the of rows of shingles between the gutter and the peak of the roof and then divide the number by 2 which gives me the height measurement.
So if you divide your answer of a product of length times height by two you will get the area of a triangle.
