Obtain the data from the manufacturer s specifications or by direct measurement.
How to measure roofing sheets.
A 4 8 sheet of plywood is 32 ft 2.
8 inches and you have an 8 in 12 pitch.
Then area of roofing sheet 3 6 x 1 8 6 48m2.
Since s2 is now a rectangle simple l x w is all that is required.
Standard sheets in the u s are 36 inches wide but the.
As you can see s1 and s3 are the same size but you still need to document all measurement points to verify your material calculation accuracy.
If this distance measures 4 inches you have a 4 in 12 pitch.
Multiply length by breadth.
S1 s2 and s3.
Pitch measurement method 1 1.
For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it.
Now find out the length and breadth of each roofing sheet and also.
So dividing the area of the roof by 32 will give you the number of sheets needed.
Now find out the length and breadth of each roofing sheet and also multiply length by breadth.
Therefore total numbers of roofing sheets needed approximately is.
Assuming the ceilling sheet is 3 6m in length and 1 8m in breadth then area of roofing sheet 3 6 x 1 8 6 48m2 therefore total numbers of roofing sheets needed approximately is area of building allowance area of one roofing sheet 583 2 6 48m 90 sheets.
The easiest way to measure this section is to divide it up into three different sections.
Once you have the area you can divide by the area of a sheet of plywood to find the number of sheets needed.