« Return to BuildingGreen.com

RedBuilt Certified Engineered Lumber

RedBuilt offers certified engineered wood products, including FSC-certified Red-I I-joists, RedLam LVL, and Open-Web trusses… Read more
(0 User Ratings)
Comments Add a Comment
  • Third-party forest certification based on standards developed by the Forest Stewardship Council (FSC) is the best way to ensure that wood products come from well-managed forests. Wood products must go through a chain-of-custody certification process to carry an FSC stamp.

    Manufactured wood products can meet the FSC certification requirements with less than 100% certified wood content through percentage-based claims (30% certified content is required if only virgin wood fiber is used; certified-wood content as low as 17.5% is allowable if the rest of the fiber content is from recycled sources).

    With a few special-case exceptions, FSC-based certification is a requirement for GreenSpec inclusion of any nonsalvaged solid-wood product and most other wood products. A few manufactured wood products, including engineered lumber and particleboard/MDF, can be included if they have other environmental advantages--such as absence of formaldehyde binders. Engineered wood products in GreenSpec do not qualify by virtue of their resource efficiency benefits alone (for more on this, see EBN, Vol. 8, No. 11).

RedBuilt offers certified engineered wood products, including FSC-certified Red-I I-joists, RedLam LVL, and Open-Web trusses. The company uses phenol formaldehyde, resorcinol formaldehyde, and polymeric diphenylmethane diisocyanate (pMDI) resins in the manufacturing process. With some products, special orders may be required.

Engineered timber products can provide a significant environmental advantage over solid wood and other building materials: they efficiently utilize fast-growing, small-diameter trees; in responsibly managed forests they sequester carbon that would otherwise enter the atmosphere; they provide a connection to nature when left exposed on building interiors; and they can even provide a viable replacement for energy-intensive steel and concrete in some structural applications.

For decades, engineered timber has been made with exterior-grade, no-added-urea-formaldehyde (NAUF) resins, including phenol formaldehyde, melamine formaldehyde, resourcinol formaldehyde, or phenol-resourcinol formaldehyde. Similar to exterior sheathing, which also uses phenol formaldehyde, engineered timber is exempt from CARB emissions testing because of low emissions, but engineered lumber products are now available with formaldehyde-free polyurethane resins.

Products listed in GreenSpec contain no-added formaldehyde resins, are available with FSC-certified content, or offer other environmental benefits.

LEED Credits

EQc4.4: Low-Emitting Materials—Composite Wood&Agrifiber Products

IEQc4.4: Low-Emitting Materials—Composite Wood and Agrifiber Products

MRc6: Certified Wood

MRc7: Certified Wood

Ratings and Commentary

Add Comment

Welcome !