How long will the glue in Open Joist last?
Open Joist uses a phenol resorcinol adhesive that is resistant to water, heat and fire. This structural adhesive is the standard of the engineered wood products industry (also used by I-Joist and Glu-Lam manufacturers) and has been in use since the late 1940’s. It is safe to say that the wood fiber in an Open Joist floor truss would disintegrate from age before this glue would break down.
