engineered i joists
I am completing a basement reno for a friend. The floor joists are engineered i-joists 2X3 with OSB. The only option for the ceiling in the basement is drywall ( the windows are too close to ceiling for suspended tiles) Anyhow, the center beam in the house is terrible. Along the teleposts, there are severe peaks ( up to 1 inch; peaks and valleys on a 40 foot run). The exterior walls are fine, only peaks and valleys along center beam. Without adjusting the telepost to level ( it would cause major issues with upstairs if different stresses are put on walls, I would imagine major cracks at the very least). is there an acceptable way to sister a 2X3 onto the side of the bottom plate of the I-joist to basically level the ceiling? I am worried that the small 2X3 will not handle the twist of addiing lumber to the side of it and the weight of the drywall on that. Thoughts?
Last edited by Rod M; 09-24-2012 at 09:54 PM.