|
Square feet to add for roof pitch
If you
know the pitch of a roof, you can use the numbers in the following
pitch table to do the following:
Determine how many square feet of roof area a building has by
measuring from the ground.
Determine how many square feet of roof area a building has by
measuring blueprints or plans.
|
Roof
Pitch
|
Amount
to add
|
| 2/12
|
1.01
|
| 3/12
|
1.03
|
| 4/12
|
1.05
|
| 5/12
|
1.08
|
| 6/12
|
1.12
|
| 7/12
|
1.16
|
| 8/12
|
1.20
|
| 9/12
|
1.25
|
| 10/12
|
1.30
|
| 12/12
|
1.41
|
| 14/12
|
1.54
|
| 16/12
|
1.67
|
| 18/12
|
1.80
|
| 20/12
|
1.94
|
| 22/12
|
2.09
|
| 24/12
|
2.24
|
Example:
Roof is 6/12 pitch and measures at 2,400 square feet
So 2400 x 1.12 = 2,688 , 2.68 sqs added for pitch.
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