New Parallam Plus PSL Provides Superior Protection Against Moisture, Termites and Fungal DecayImproved Preservative Treatment Allows for Wider Range of Fastener Types

October, 2009 -- iLevel by Weyerhaeuser's newly enhanced Parallam Plus® parallel strand lumber (PSL) with Wolmanized® preservative protection offers builders the strength and consistency that is critical for structural framing in exterior applications. The improved preservative treatment is compatible with galvanized fasteners and penetrates to the product's core to help protect against termites, fungal decay and recurring ground water contact. www.ilevel.com

Parallam Plus PSL is available in headers, beams, columns and posts. It is an ideal structural solution for unprotected exterior applications with high moisture conditions, including decking supports, carports, and retaining walls. It can be painted or stained with an oil-based finish. Parallam Plus PSL columns and posts can also be installed directly into the ground and can tolerate exposure to saltwater splash.

iLevel's Parallam Plus PSL

iLevel manufactures Parallam Plus PSL using long, narrow veneer strips bonded together with adhesives using a press and microwave process. The result is consistently straight and strong structural frame materials that perform well in demanding applications.

Parallam Plus PSL is covered by two 30-year limited warranties. iLevel warrants Parallam Plus PSL against manufacturing defects, and Arch Treatment Technologies warrants against termites and fungal decay.

iLevel is Weyerhaeuser's integrated residential, multi-family and light construction framing business providing seamless, unified building solutions. By offering the most comprehensive and innovative collection of proven structural framing materials, technical support and software in the building industry, and the means to distribute them efficiently, iLevel is leading the structural frame market and helping builders and dealers succeed in today's challenging business environment. www.ilevel.com.

Weyerhaeuser Company, one of the world's largest forest products companies, was incorporated in 1900. In 2008, sales were $8 billion. It has offices or operations in 10 countries, with customers worldwide. Weyerhaeuser is principally engaged in the growing and harvesting of timber; the manufacture, distribution and sale of forest products; and real estate construction and development. Additional information about Weyerhaeuser's businesses, products and practices is available at http://www.weyerhaeuser.com.