AERT/Weyerhaeuser ChoiceDek Receives National Evaluation Report for Composite Decking.

Business Editors & Environmental Writers

SPRINGDALE, Ark.--(BUSINESS WIRE)--May 4, 2001

Advanced Environmental Recycling Technologies Inc. (Nasdaq:AERTA), a leader in wood composite technology, announced that the Weyerhaeuser ChoiceDek(R) line of engineered composite decking products has recently received a National Evaluation Report (NER) from the National Evaluation Service Inc. (NES) for the use of ChoiceDek(R) in decking, handrails and stair applications.

The report was recently issued as Report No. NER-596. The report will be published shortly and available on the www.nateval.org Web site.

The NES is the only national program of its kind in the United States which specifically performs evaluations for compliance with requirements of the three model codes and the International Codes of the International Code Council. The model building codes are the National Building Code, Standard Building Code, Uniform Building Code and International Building Code (NBC, SBC, UBC and IBC).

According to AERT chairman, Joe G. Brooks, "We have extensively tested our AERT products via independent third party laboratories and are pleased to have earned this National Evaluation Report. We would like to express our appreciation to Dave Gromala, PE, and the Weyerhaeuser Technology Center staff for their assistance and support, as well as, our AERT associates for their assistance, dedication and commitment to quality."

Jim Precht, AERT vice president and ChoiceDek(R) marketing manager added, "The broad-based acceptance of the NER report will allow us to penetrate significant new markets in many urban and suburban communities across the United States. This evaluation and acceptance of our independent product performance ratings and test data gives architects, builders and building inspectors the opportunity to evaluate, many for the first time, the unique features and benefits of this exciting product. This is another positive step in our journey to build ChoiceDek(R) brand awareness and further increase distribution and sales throughout North America in conjunction with the Weyerhaeuser distribution network."

AERT decking products are sold primarily as Weyerhaeuser ChoiceDek(R) through an exclusive North American distribution and marketing arrangement with Weyerhaeuser Building Materials. AERT manufactures a growing line of composite building materials made from recycled polyethylene plastic and waste wood fiber and are marketed under the trade names MoistureShield(R) and ChoiceDek(R) for the North American homebuilding market. AERT currently operates a manufacturing facility in Texas and a recycling and manufacturing facility in Arkansas.

Certain of the statements made in this press release by Joe G. Brooks and Jim Precht are forward-looking statements within the meaning of the Securities Litigation Reform Act of 1995. Such statements involve certain risk and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. Potential risks and other factors that could cause or contribute to actual results differing materially from such forward-looking statements are discussed in greater detail in the Company's Securities Commission Filings.

Weyerhaeuser Company (NYSE:WY), one of the world's largest integrated forest products companies, was incorporated in 1900. In 2000, sales were $16 billion. It has offices or operations in 17 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, development and related activities. Additional information about Weyerhaeuser's businesses, products and practices is available at www.weyerhaeuser.com.