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To achieve EQc4.4, “[c]omposite wood and agrifiber products used on the interior of the building (defined as inside of the weatherproofing system) shall contain no added urea-formaldehyde resins…”


Under EQc4.4, composite wood and agrifiber products are defined as particleboard, medium density fiberboard (MDF), plywood, wheatboard, strawboard, panel substrates and door cores. Engineered wood flooring is also considered a composite wood product.


EcoTimber’s engineered flooring products whose wood layers are laminated together using EPI adhesives qualify for this credit. EPI glues are a newly developed two-part glue system that contains no added urea formaldehyde.  It is more expensive and difficult to work with at the factory level, but is especially well suited for bonding thicker sawn wear layers to substrates when making wood flooring.


Click here for information on documenting these and other LEED credits.
Click here for a list of products that qualify for these credits.

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