Is OSB good for roof decking?

Is OSB good for roof decking?

OSB is now the most-used sheathing and subflooring material for new roofs and roof replacements. OSB is currently selling for less than plywood by approximately $3 per sheet, meaning a savings of several hundred dollars per conventional home.

What plywood is best for roof decking?

CDX is the grade of plywood most commonly used for roofing (CDX plywood means it is Construction Grade for exterior purposes).

How long does OSB last for on roof?

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.

What thickness OSB should be used for roofing?

7/16-inch thick
Standard types of wood designed for roof sheathing are oriented strand board, known as OSB, and plywood, the most popular being OSB. Sheets of 7/16-inch thick, without edge support, can be used in an area where the snow load is 30 pounds per square foot.

What thickness of plywood should be used for a roof?

Most Common Thickness The most common rafter spacing is 24 inches, and 5/8-inch plywood is recommended for that. It will support roof loads for most situations and is the standard for most roof applications. Roofs with very heavy loads may require 3/4-inch thickness.

What thickness of plywood do you use for a roof?

What size OSB is used for roofing?


Is OSB better than plywood?

Yes, OSB is stronger than plywood. When choosing between OSB and plywood, most builders are guided by durability. Since OSB is a “bunch of wood chips glued together,” its detractors are quick to say: “OSB falls apart.”. This is a simplistic and popular stance that has a familiar tone.

Is OSB stronger than plywood?

OSB tends to be more flexible than regular plywood. However, this doesn’t mean that OSB is inherently weaker; it just means it can be a bit bouncy. For instance, if you’re using OSB as subflooring, you want to ensure that your floor joists aren’t too far apart; otherwise, you may end up with some bending.

Which is stronger OSB or plywood?

OSB. Oriented strand board is a natural wood product,made of wood that has been processed by grinding it into thin strands.

  • Plywood. Plywood is made from thin layers of wood peeled from logs.
  • Strength. There are three basic measurements of strength that are applied in the rating of wood structural panels.
  • Pros and Cons.
  • What is the best plywood for roofing?

    Weight Of The Covering Material. The amount of weight on the roof is greatly affected by the number of shingle layers installed.

  • Amount Of Pressure Exerted By External Forces And Weather. In areas experiencing heavy ice and snow loads,thick plywood is required,unlike in areas where such factors are non-existent.
  • Design Of The Roof.