CDX is the grade of plywood most commonly used for roofing (CDX plywood means it is Construction Grade for exterior purposes).Apr 11, 2020
How much does a plywood sheet cost?
Thickness Type Price
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1/4" Oak Plywood $25.97
1/2" Oak Plywood $42.97
1/2" Birch (3 ply) $41.97
3/4" Birch (5 ply) $44.97
How many sheets of plywood do you need for a roof?
Divide the total roof area by 32 to get the number of sheets you will need to cover the roof. A typical 4 foot by 8 foot sheet of plywood covers 32 square feet. If your roof area is 1,600 square feet, 1,600 divided by 32 will mean you need about 50 sheets to cover the roof.
Which plywood is best for roofing?
Exterior Plywood is the preferred material for roofing. It also performs well when exposed to moisture over long periods of time. The price is low compared to other roofing materials and the installations are also easy.Nov 4, 2020
What thickness of plywood should be used for a roof?
3/8 inch
How long does roof plywood last?
You can expect the wood roof sheathing of a home to last 100+ years. Although it should last for the life of the home, roof sheathing lifespan can be shortened by moisture penetrating it from both above and below.Jan 30, 2020
Can you put new plywood over old on a roof?
The new plywood will have to be nailed to the rafters or roof trusses. ... But, with the old plywood left in place, it will be considerably more difficult to locate the rafters to ensure proper nail placement.Aug 26, 2001