PRODUCTS

That means we absorb more CO₂ from the atmosphere than we produce. During photosynthesis, trees absorb carbon dioxide, a greenhouse gas, from the air and give off oxygen. Weyerhaeuser wood products continue to store carbon during their useful life, limiting the amount of carbon dioxide in the atmosphere. In 2008 the products we manufactured stored the equivalent of 7.7 million metric tons of CO₂.

On average, we use 99% of each log to produce Weyerhaeuser and Weyerhaeuser wood products, additional wood products, and energy. And our engineered wood products are made using advance technologies that allow us to take wood fiber from trees less suitable for structural lumber and efficiently turn them into strong, predictable building materials.

Urea formaldehyde resins are not added to any of our products. Concerns about off-gassing from urea formaldehyde have led to limits on emissions, most notably by the California Air Resources Board (CARB). Weyerhaeuser engineered wood products are exempt from requirements of CARB. Consult our materials and safety data sheets (MSDS).

Trees from sustainably managed forests are a renewable resource and all of Weyerhaeuser's North American timberlands are certified to either the Sustainable Forestry Initiative standard or the Canadian Standards Association (CSA/Z809) Sustainable Forestry Management standard.

Weyerhaeuser products are independently certified to either the Sustainable Forestry Initiative standard or the Canadian Standards Association (CSA/Z809) Sustainable Forestry Management standard. Having our products certified to these standards indicates that Weyerhaeuser has lived up to the highest criteria for obtaining the raw materials that go into making our products. Independent certification also provides our customers with the assurance that Weyerhaeuser follows responsible purchasing practices.

More than half of the energy needed to make Weyerhaeuser building materials comes from by-products of the manufacturing process.