Installation Instructions

ManualsBrandsUnbranded ManualsBuilding materials3/4 x 4 x 8 Tongue-and-Groove Weyerhaeuser Edge Gold OSB

#OSB-4004

TECHNICAL

RESOURCE SHEET

Floor, Roof and Wall Panel Installation

Add shims or blocking as necessary to create

a smooth, at surface. Verify that the panel's

span rating meets or exceeds job require-

ments. Soft spots may occur if joist on-center

spacing exceeds panel span rating.

Panels should be installed with the 8' length

perpendicular to support members. When

laying out ooring, make certain that each

panel covers at least two spans and the

panel edges fall at the center of the support.

It may be necessary to trim some panels.

Make sure that the “This side down” stamp

is on the underside. Lay out rows of panels

so that end joints are offset by at least one

on-center spacing of the supports.

Gapping Panels

The panel industry recommends spacing

wood-based panels to allow for the expan-

sion that occurs when they are exposed to

moisture. When installing Weyerhaeuser

ooring, maintain a

⁄8" gap at panel ends

and edges. See Figure 3 on page 2.

Weyerhaeuser single-layer ooring is

manufactured with a self-gapping tongue-

and-groove (T&G) prole that automatically

gaps the edges as the oor is assembled.

See Figure 1. A 10d box nail can be used to

gauge the ⅛" gap between panel ends.

These spacing recommendations may not

be adequate for buildings over 80' in length

or width. See the recommendations for

installing temporary

Expansion Joints for

Floors in Large Buildings on page 3.

To help prevent standing water on ooring,

and minimize moisture issues, Weyerhaeuser

Achieving optimum performance with Weyerhaeuser Edge

™

and Edge Gold

™

oriented strand board

(OSB) ooring and Weyerhaeuser sheathing depends heavily on correct installation and panel choice.

End-user complaints can be avoided by choosing an appropriate panel for the application, practicing

quality work, and installing Weyerhaeuser panels according to the techniques recommended here.

Minimize the chance for

accidents by installing

panels with the

textured side up.

Safety

Always make safety a priority on the job site.

Follow all OSHA requirements for proper per-

sonal protection equipment (PPE), fall protec-

tion, forklift safety, and the use of equipment.

Adhere to Weyerhaeuser installation details,

including the installation of safety bracing on

unsheathed oors and roofs.

Consider that wet and/or steeply pitched

sheathing may be slippery. Make sure work-

ers have clean, slip-resistant roong shoes

and use all safety restraints required by

OSHA. To help minimize the chance for

accidents, install panels with the textured

(or screen) side up. Weyerhaeuser sheathing

is stamped “This side down” on the smooth

face to facilitate safe installation.

Storage

Like any wood product, wood-based panels

are at risk of fungal decay or rot if exposed

to repeated wetting or high-moisture

environments. Panels that are exposed to

such conditions may deteriorate, lose

strength, or support mold growth. For these

reasons, protection from these conditions

must be provided.

Keep all building materials dry and out of

standing water prior to installation.

Weyerhaeuser panels should be stored

at least 4" off the ground. During transit

and storage, make sure the panels are

not damaged.

Floors

Laying Panels

Before installing ooring, make sure the

framing underneath is level and not twisted.

Summary of content (8 pages)

PAGE 1
#OSB-4004 TECHNICAL RESOURCE SHEET Floor, Roof and Wall Panel Installation Achieving optimum performance with Weyerhaeuser Edge™ and Edge Gold™ oriented strand board (OSB) flooring and Weyerhaeuser sheathing depends heavily on correct installation and panel choice. End-user complaints can be avoided by choosing an appropriate panel for the application, practicing quality work, and installing Weyerhaeuser panels according to the techniques recommended here.
PAGE 2
Floor, Roof, and Wall Panel Installation Space Weyerhaeuser panels with a minimum 1⁄8" gap at ends and edges. T&G profile automatically gaps the edges. Down Pore® drainage groove with Edge Gold™ flooring recommends using Edge Gold™ panels with self-draining Down Pore® drainage grooves. Patented Down Pore® technology channels water through the panel and off the joists below without the need to plug or patch later. Alternatively, consider drilling drainage holes through floors to allow water to escape.
PAGE 3
Floor, Roof, and Wall Panel Installation ±12" gap in wall bottom plate at expansion joint Most power-driven fasteners have adjustments for controlling pressure. If the pressure is set too high, it will countersink the fastener—something that should be avoided when installing flooring or sheathing. Adjust the pressure until the nails drive flush to the panel face.
PAGE 4
Floor, Roof, and Wall Panel Installation Narrow width panels Maintain 1 ⁄ 8" gap along all panel edges parallel to the joists is directly over a joist. When it is necessary to nail directly to the flooring, clinch all nails while they are still accessible. Placing a bead of subfloor adhesive between the bottom plate and the flooring will enhance the connection and help prevent squeaks. Floor Performance Floor panels are an important component in creating a floor system that feels good to customers.
PAGE 5
Floor, Roof, and Wall Panel Installation Full panel Full panel Spacer clip Figure 6 These spacing recommendations may not be adequate for buildings over 80' in length or width. See the recommendations below for Expansion Joints for Roofs in Large Buildings. Gapping Panels — Edge Gold™ Tongue-and-Groove Sheathing For Weyerhaeuser roofing with our easy fit tongue-and-groove (T&G) profile, do not use clips. Our T&G profile has been designed to be self-gapping along the 8' edge.
PAGE 6
Floor, Roof, and Wall Panel Installation Weyerhaeuser sheathing applied parallel or perpendicular to wall studs Stagger vertical joints A minimum of 50% of the required vents must be at least 3' above the eave vents. When a ceiling is applied directly to the underside of the roof framing, unobstructed ventilation paths from the eaves to the ridge are required between each rafter. Finally, install vent pipes with roof ventilators to avoid heat and humidity build up.
PAGE 7
Floor, Roof, and Wall Panel Installation is the primary cause of failure in high-wind events. See the table on page 4 for Weyerhaeuser's recommended fastening schedules. Check with local building codes for any allowable fastener substitutions. Gapping Panels The panel industry recommends spacing wood-based panels to allow for the expansion that occurs when they are exposed to excessive moisture. When installing sheathing, maintain a 1⁄8" gap at panel ends and edges. See Figure 8.
PAGE 8
Preservative Treatments Approved for Trus Joist® Engineered Wood Products How to Read a Weyerhaeuser Grade Stamp 1 1 2 2 3 3 1 Company logo 2 Recognized certification agency logo 3 Panel grade. Rated Sturd-I-Floor® panels are intended for single-layer floor applications. Rated Sheathing panels are intended for roof, subfloor, and wall applications.