Ainsworth. Thermastrand radiant barrier roof sheathing features an aluminum foil overlaid on micro-perforated OSB panels. The foil blocks up to 97% of the sun’s radiant energy, and the perforations control humidity buildup in the attic, the company says. According to the firm, the panels are twice as permeable as commodity OSB. The panels are Energy Star–certified and also carry certifications from SFI and/or the Canadian Standards Association. 604.661.3200. www.ainsworthengineered.com.
Dow. SIS Structural Insulated Sheathing combines a moisture-resistant blue foil outside face, a polyisocyanurate foam core, and structural sheathing. Builders can use ½-inch (R-3) panels to sheathe entire exteriors or 1-inch-thick (R-5.5) panels as shear panels on corners to match up with 1-inch foam sheathing on the rest of the exterior. Joints between panels are sealed with Weathermate tape. SIS panels contain 80% post-consumer recycled content and are Energy Star–rated. 866.583.2583. www.dow.com.
Georgia-Pacific. Nautilus combines OSB structural sheathing and a water-resistive barrier in one panel, reducing installation time; the panels install like traditional sheathing and seal with Nautilus seam tape. The panels include nailing guides that are visible through the integrated building wrap. The Blue Ribbon OSB is SFI-certified. 800.284.5347. www.builditbetter.com.
Homasote. 440 SoundBarrier is a nearly 100% recycled nailable structural board made from cellulose fiber, with an insulating value of R-1.2 per 1/2 inch. Originally intended as a soundproofing product, the firm says it withstands jobsite weather and mistreatment better than standard, impregnated fiberboard, and offers shear strength sufficient for many exterior wall-bracing applications. 800.257.9491. www.homasote.com.
Huber Engineered Woods. ZIP System roof and wall sheathing feature built-in protective barriers. Along with ZIP SystemTape to seal the seams, the all-in-one panels eliminate the need for housewrap or felt, the company says, making the installation faster and easier than traditional materials. A stiffer, full-depth ½-inch roof sheathing board, the ZIP System roof sheathing panel requires no H clips as long as rafters are spaced at 24 inches or less. 800.933.9220. www.zipsystem.com.
iLevel by Weyerhaeuser. According to the manufacturer, the proprietary glues and resins used in Edge Gold OSB flooring panels make it more water-resistant and durable when exposed to jobsite conditions and weather. The panels come stamped with a fastener location guide for easier, accurate, and warranty-compliant nailing, and bears the SFI-certified Fiber Sourcing label. 888.453.8358. www.ilevel.com.
LP. LongLength OSB allows for easier sheathing of homes with higher ceilings, requires fewer total panels, and results in fewer seams, the firm says. Installed vertically, the extended-length panels tie the top plate to the floor joists and eliminate the need to install fillers or blocking material. Several lengths and thicknesses are available. The sheathing is SFI-certified. 888.820.0325. www.lpcorp.com.
RoyOMartin. Eclipse radiant barrier OSB or plywood sheathing has an aluminum foil backing that the company says will block up to 97% of the sun’s radiant heat when used in a roof deck, significantly reducing attic temperatures. When used as a wall sheathing (OSB only) with approved foil tape to seal seams and corners, the product is redefined as Eclipse Energy Guard and serves as an energy-efficient housewrap. FSC-certified sheathing also is available by special order. 800.299.5174. www.royomartin.com.
Timber Products. The company’s softwood plywood comes in 8-, 9-, and 10-foot lengths; 4- and 5-foot widths; and thicknesses from 5/16 inch to 2 inches. It is available in several grades for sheathing, concrete forms, and underlayment. The panels are SFI-certified and are available with FSC certification. 800.547.9520. www.timberproducts.com.
The certification agency stamp will show the following information for panel identification: 1-Panel grade 2-Span rating 4-Bond classification 5-Product standard 6-Thickness 7-Mill number 8-APA’s performance-rated panel standard 11-HUD recognition 12-Panel grade, Canadian standard 13-Panel mark—Rating and end-use designation per the Canadian standard 14-Canadian performance rated panel standard 15-Panel face orientation indicator Source: APA-The Engineered Wood Association