What are the types of sheathing?

Types of Sheathing

There are two main types of wall sheathing: structural and non-structural. While structural sheathing increases building stability, non-structural sheathing improves insulation. Wall sheathing is primarily a structural material.

What is the best material for sheathing?

Plywood and OSB are largely considered the best wall sheathing choices because of their overall abilities to hold fasteners well, create a strong bond between studs, and provide some thermal advantages. The “big two” aren’t the only selections available however. Structural fiberboard is one such option.

What is the cheapest sheathing material?

OSB is traditionally cheaper than plywood and other structural sheathings; however, a high demand over supply of OSB in recent years has caused OSB prices to escalate. Recently, OSB increased by 4.4 percent.

What is the most common type of sheathing?

Exterior wall sheathing is the most common type of sheathing and has structural or nonstructural functions.
  • Structural sheathing strengthens the building, providing support. …
  • Nonstructural sheathing provides insulation.

Is CDX or OSB better?

Although some people will ultimately choose CDX, many experts argue that OSB is better overall for roofing. OSB is far less likely to expand and contract when exposed to humidity and moisture, even though it will take longer to dry. With wrapping, though, it can withstand the elements without issue.

What is stronger plywood or OSB?

Osb is stronger than plywood in shear. Shear values, through its thickness, are about 2 times greater than plywood. This is one of the reasons osb is used for webs of wooden I-joists. However, nail-holding ability controls performance in shear wall applications.

What can be used instead of OSB?

The three substitutes for OSB that you can consider using are structural sheathing fiberboard, fibreglass-faced gypsum panels, and rigid foam insulation. All of these are viable options if you find the price of OSB too out of reach for your construction projects.

Is OSB cheaper than plywood?

OSB is less expensive than plywood. To build a typical 2,400-square foot home, OSB may cost $700 less than plywood. OSB is considered by many to be a “green” building material because it can be made from smaller-diameter trees, such as poplars, that are often farmed.

How thick should house sheathing be?

For residential construction, the building code requirement typically is for a rated sheathing panel of either OSB or plywood of 0.95 cm (3/8 in) thickness when sheathing is required, as for shear wall sections; however, the common practice is to use sheathing thicknesses greater than code, which is referred to as “ …

Can you use foam board as sheathing?

Styrofoam Residential Sheathing offers a lightweight, efficient sheathing alternative to high-priced OSB panels. One solution: Specify rigid Styrofoam Residential Sheathing instead of OSB, for sections of the home that can be brought to code with other stiffening measures.

Which is more water resistant plywood or OSB?

Plywood is porous and is susceptible to damage when exposed to water for longer time. OSB is not water resistant and hence cannot be used for exterior projects.

What does CDX stand for?

The credit default swap index (CDX) is itself a tradable security: a credit market derivative. But the CDX index also functions as a shell, or container, as it is made up of a collection of other credit derivatives: credit default swaps (CDS).

Can OSB get wet?

Your framing lumber and the oriented strand board (OSB) are going to be fine. The glues used to make OSB are water-resistant because the manufacturers know that virtually no one can build a home that won’t get wet before the roof and siding is applied.

Why is OSB more expensive than plywood?

Durable wood also lasts longer. Since it lasts longer, manufacturers will sell fewer boards over time. To ensure they don’t miss out on future profit, they need to price their boards at a higher price point. OSB is expensive because it’s durable and requires more resources and processes to make it.

Does OSB need to be sealed?

Whatever way you take it, OSB is usually waterproofed during the manufacturing process. However, if you intend to use it for an exterior application, you may need to make it more resistant to water by adding a protective layer.