Provides Corner Bracing

No supplementary corner bracing is required by the model building codes when structural grade fiberboard sheathing panels, 1/2" or 25/32", are applied vertically or horizontally.

Ideal for Any Siding

Fiberboard sheathing is easy and economical to install with hardboard, wood, or any other siding material. And, there is no fear of crushing when staples or nails are driven securely.

Durable

Fiberboard sheathing withstands the wear and tear involved in handling prefabricated wall sections. And, because it doesn't break easily, there is less waste. Fiberboard sheathing is not adversely affected by inclement weather or sunlight.

Insulates

Fiberboard sheathing's insulating properties help save energy and money.

Reduces Noise

Fiberboard offers more sound transmission resistance than most sheathing materials. When used with sound-deadening board and gypsum wallboard, outside walls become excellent sound barriers against outdoor noise.

Controls Vapors

Fiberboard sheathing is water repellent, forms a weather-tight cover for walls, and eliminates the need for building paper with most sidings. Fiberboard sheathing's high permeance also permits unwanted vapor to escape outward through sidewalls - one of the few sheathing products available with this permeance advantage.

Applies Easily

Fiberboard sheathing offers rapid and efficient applications with nails or staples.

Installation Instructions

Structural Sheathing, 1/2" regular and 1/2" and 25/32", can provide racking strength when applied over studs 16" O.c., and nailed as described in the application portion of these instructions. However, specific racking resistance requirements will be determined by local building codes. Consult your local building code for building paper and vapor retarder requirements.

Sizes

Regular sheathing is available in nominal 1/2" x 4' x 8', 4' x 9', and 4' x 10' square edge sheets. Structural sheathing is available in nominal 1/2" and 25/32" thickness and 4' x 8' and 4' x 9' square edge.

Product Standards

Applicable product standards are ASTM C208 or CAN/ULC-S706.

Application

Sheathing should be applied vertically with the long edges parallel to the vertical studs. Center all joints over the framing members with a 1/8" gap between edges. Leave a 1/2" gap at the doors and windows. Sheathing should extend from sill to top plate. If not, headers for adequate nailing should be provided at all horizontal joints. Horizontal application is allowed if blocking is provided at all horizontal joints. See ASTM C846 for complete details.