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