The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size.
How much is plywood for roofing.
Just like this pic except on the end of the rafters just the grey colored.
Roofing sheathing plywood overhang fascia thickness discussion in the bs topic started by mgd1790 feb 19 2017.
For example if your roof is 3 000 square feet divide 3 000 by 32.
Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.
For example if the area to be covered in plywood is 800 ft 2 then 25 sheets of plywood will be needed to cover it.
One sheet 32 ft.
Rafters run from the peak of the roof.
Then i do a metal drip edge to cover it all.
When used for roofing plywood panels are covered and protected by a variety of building materials that keep the elements at bay including roof felt underlayment flashing and shingles.
The roof sheathing comes down and ends on top of the 1 x fascia.
A typical 4 foot by 8 foot sheet of plywood covers 32 square feet.
The minimum plywood for roofing.
To find the amount of plywood needed to cover a roof start by finding the area of the roof.
777 19 03.
Severe weather 1 2 in common douglas fir plywood sheathing application as 4 x 8.
A 4 8 sheet of plywood is 32 ft 2.
Divide the roof s area by 32 32 is the total area of one sheet of plywood to find this figure.
Rtd southern yellow pine plywood sheathing.
The square footage of a hip roof area is identical to the square footage of a gable roof of the same measurements.
800 32 25 sheets.
Set your store to see local.
The most common uses for plywood include support for floors walls roofs and garages in residential construction.
Feb 19 2017 1.
This basically calculates the number of sheets needed for a gable roof.
This comes out to about 94 sheets of 4 x 8 plywood.
If your roof area is 1 600 square.
Once the area is known divide by the area of a 4 8 sheet to find how much sheathing is needed.
Mgd1790 veteran member.
Divide the total roof area by 32 to get the number of sheets you will need to cover the roof.