What is WSP sheathing?

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Wood structural panels: Wood structural panels include plywood, oriented strand board (OSB), and composite panels. OSB is often used in modern residential construction as roof sheathing and as subflooring. Plywood is often used as subflooring and underlayment. Wood Structural Panel Installation Requirements. 1.

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Herein, what is continuous sheathing?

Continuous sheathing methods require structural panel sheathing to be used on all sheathable surfaces on one side of a braced wall line including areas above and below openings and gable end walls and shall meet the requirements of Section R602.

Secondly, is sheathing structural? Roof sheathing is structural, providing lateral bracing of roof framing members, and it carries both live and dead loads from above to the rafters and trusses below.

People also ask, is OSB a structural sheathing?

Structural I, also referred to as “STRUC I,” may be OSB or plywood and is, essentially, a subcategory of APA Rated Sheathing. Specialized construction situations requiring installation of roof sheathing panels with the strength axis parallel to supporting structure also benefit from the use of Structural I Sheathing.

Can OSB be used for shear walls?

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.

How do I know if I have braced wall lines?

Any portion of a wall along a braced wall line shall be permitted to angle out of plan for a maximum diagonal length of 8 feet. When the angled wall occurs at a corner, the length of the braced wall line shall be measured from the projected corner (Figure R602.

What is a bracing plan?

Plan bracing takes the form of diagonal members, usually angle sections, connecting the compression flanges of the main beams, to form a truss when viewed in plan. This makes a structure that is very stiff in response to lateral movement.

What is a shear wall in construction?

Shear wall is a structural member used to resist lateral forces i.e. parallel to the plane of the wall. For slender walls where the bending deformation is more, Shear wall resists the loads due to Cantilever Action. In other words, Shear walls are vertical elements of the horizontal force resisting system.

What is braced wall line spacing?

10.1. 1) – Braced wall line spacing establishes the amount of racking load that must be resisted by the two or more parallel braced wall lines in each plan direction (see Figure 1). The racking load must be resisted by incorporating an adequate amount of braced wall panels in each braced wall line.

What is a brace wall panel?

It consists of the wall panel or panels (e.g., plywood or OSB Rated Sheathing), the framing, and the fasteners. Multiple braced wall segments form braced wall lines, as shown in Figure 6. Braced wall lines are what resist lateral loads in a house, as shown in Figure 7.

What are wood structural panels?

Wood structural panels: Wood structural panels include plywood, oriented strand board (OSB), and composite panels. OSB is often used in modern residential construction as roof sheathing and as subflooring. Plywood is often used as subflooring and underlayment.

What is cheaper plywood or OSB?

Cost of Plywood vs OSB

OSB is cheaper than plywood by about $3 to $5 per panel. For a typical 2,400 sq. ft. home, OSB is about $700 less expensive compared with plywood if used as the subfloor, sheathing, and roof decking.

Can OSB sheathing get wet?

Allowing OSB to get wet is not a wonderful idea but its done all the time. Most of the time there is very little harm and the material doesn’t loose strength or any of its integrity. OSB that does get wet will tend to swell and delaminate first at the edges of the boards.

Is 7/16 OSB OK for roofing?

Wall panels 7/16 Category may be used on studs spaced up to 24” o.c. LP OSB sheathing panels are designed for use in roof, wall and subfloor systems in commercial and residential projects, maintenance, remodeling or new construction. OSB sheathing panels comply with the following industry standards and certifications.

How thick should wall sheathing be?

The International Residential Code specifies 3/8-inch plywood for sheathing walls with a standard stud spacing of 16 inches, if the siding is nailed to the studs through the sheathing. If the nails penetrate the sheathing, but not the studs, the minimum plywood thickness that the IRC designates is 1/2 inch.

Is plywood sheathing better than OSB?

In the same microclimate, plywood works significantly better than OSB. Plywood dries much faster, while OSB needs to be more protected than plywood. OSB can’t get as wet and it needs to be more deliberately dried. That’s why it is critical to have an air gap between OSB and your cladding.

Should OSB be installed vertically or horizontally?

However, when used in wall construction as a shear diaphragm for wind or seismic loads, the panels can be run either vertically (parallel to the studs) or horizontally (perpendicular to the studs). wall construction, vertical orientation is actually stronger because there are no horizontal joints.

How long will OSB last outside?

For exterior applications, if you are not painting the OSB directly after installing it, be aware of how long you have before the material begins to be affected by the elements. For example, Weyerhaeuser Edge Gold OSB panels are warranted for 200 days against edge swell caused by water absorption.

How much weight can 3/4 OSB support?

Medium OSB

Panels of OSB that are 23/32- and 3/4-inch-thick, set on joists 24 inches OC, can bear 100 psi live weight and 10 psi dead weight. Panels that are 7/8-inch and 1-inch-thick, mounted on joists 32 inches OC, can bear 100 psi live weight and 10 psi dead weight.

Can OSB board be used outside?

Oriented strand board (OSB) is far superior to particle board for exterior use. Even the old type OSB used as a substitute for plywood is decent in exterior applications, although it will absorb water if exposed.

What are the most common sheathing for residential construction?

Structural Sheathing

Common structural sheathings include plywood, oriented strand board (OSB), wafer board, and exterior gypsum board. When choosing plywood, OSB, or wafer-board panels, be sure they are rated as wall sheathing and choose an appropriate thickness.

What is the difference between sheeting and sheathing?

Roof Sheathing (“Sheeting“) Roof sheathing is any material that is used to provide a solid surface, decking or base to which roofing material is applied to. The roof sheathing is much more than simply just a surface to attaching roofing materials to.